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- v2.6.15-rc7
- v2.6.15-rc6
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Revision | Author | Date | Message | Commit Date |
---|---|---|---|---|
fc74e0a | Linus Torvalds | 26 December 2021, 21:17:17 UTC | Linux 5.16-rc7 | 26 December 2021, 21:17:17 UTC |
e8ffcd3 | Linus Torvalds | 26 December 2021, 18:28:55 UTC | Merge tag 'x86_urgent_for_v5.16_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - Prevent potential undefined behavior due to shifting pkey constants into the sign bit - Move the EFI memory reservation code *after* the efi= cmdline parsing has happened - Revert two commits which turned out to be the wrong direction to chase when accommodating early memblock reservations consolidation and command line parameters parsing * tag 'x86_urgent_for_v5.16_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/pkey: Fix undefined behaviour with PKRU_WD_BIT x86/boot: Move EFI range reservation after cmdline parsing Revert "x86/boot: Pull up cmdline preparation and early param parsing" Revert "x86/boot: Mark prepare_command_line() __init" | 26 December 2021, 18:28:55 UTC |
2afa90b | Linus Torvalds | 26 December 2021, 18:19:40 UTC | Merge tag 'objtool_urgent_for_v5.16_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool fixes from Borislav Petkov: - Prevent clang from reordering the reachable annotation in an inline asm statement without inputs - Fix objtool builds on non-glibc systems due to undefined __always_inline * tag 'objtool_urgent_for_v5.16_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: compiler.h: Fix annotation macro misplacement with Clang uapi: Fix undefined __always_inline on non-glibc systems | 26 December 2021, 18:19:40 UTC |
4386451 | Linus Torvalds | 26 December 2021, 04:00:09 UTC | Merge tag 'pinctrl-v5.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: "Some hopefully final pin control fixes for the v5.16 kernel: - Fix an out-of-bounds bug in the Mediatek driver - Fix an init order bug in the Broadcom BCM2835 driver - Fix a GPIO offset bug in the STM32 driver" * tag 'pinctrl-v5.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: stm32: consider the GPIO offset to expose all the GPIO lines pinctrl: bcm2835: Change init order for gpio hogs pinctrl: mediatek: fix global-out-of-bounds issue | 26 December 2021, 04:00:09 UTC |
e2ae0d4 | Linus Torvalds | 25 December 2021, 21:08:22 UTC | Merge tag 'hwmon-for-v5.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: "A couple of lm90 driver fixes. None of them are critical, but they should nevertheless be fixed" * tag 'hwmon-for-v5.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (lm90) Do not report 'busy' status bit as alarm hwmom: (lm90) Fix citical alarm status for MAX6680/MAX6681 hwmon: (lm90) Drop critical attribute support for MAX6654 hwmon: (lm90) Prevent integer overflow/underflow in hysteresis calculations hwmon: (lm90) Fix usage of CONFIG2 register in detect function | 25 December 2021, 21:08:22 UTC |
5b5e3d0 | Linus Torvalds | 25 December 2021, 21:00:14 UTC | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: "A few small updates to drivers. Of note we are now deferring probes of i8042 on some Asus devices as the controller is not ready to respond to queries first time around when the driver is compiled into the kernel" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: elants_i2c - do not check Remark ID on eKTH3900/eKTH5312 Input: atmel_mxt_ts - fix double free in mxt_read_info_block Input: goodix - fix memory leak in goodix_firmware_upload Input: goodix - add id->model mapping for the "9111" model Input: goodix - try not to touch the reset-pin on x86/ACPI devices Input: i8042 - enable deferred probe quirk for ASUS UM325UA Input: elantech - fix stack out of bound access in elantech_change_report_id() Input: iqs626a - prohibit inlining of channel parsing functions Input: i8042 - add deferred probe support | 25 December 2021, 21:00:14 UTC |
d0cc67b | Linus Torvalds | 25 December 2021, 20:30:03 UTC | Merge branch 'akpm' (patches from Andrew) Merge misc fixes from Andrew Morton: "9 patches. Subsystems affected by this patch series: mm (kfence, mempolicy, memory-failure, pagemap, pagealloc, damon, and memory-failure), core-kernel, and MAINTAINERS" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page() mm/damon/dbgfs: protect targets destructions with kdamond_lock mm/page_alloc: fix __alloc_size attribute for alloc_pages_exact_nid mm: delete unsafe BUG from page_cache_add_speculative() mm, hwpoison: fix condition in free hugetlb page path MAINTAINERS: mark more list instances as moderated kernel/crash_core: suppress unknown crashkernel parameter warning mm: mempolicy: fix THP allocations escaping mempolicy restrictions kfence: fix memory leak when cat kfence objects | 25 December 2021, 20:30:03 UTC |
2a57d83 | Liu Shixin | 25 December 2021, 05:12:58 UTC | mm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page() Hulk Robot reported a panic in put_page_testzero() when testing madvise() with MADV_SOFT_OFFLINE. The BUG() is triggered when retrying get_any_page(). This is because we keep MF_COUNT_INCREASED flag in second try but the refcnt is not increased. page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0) ------------[ cut here ]------------ kernel BUG at include/linux/mm.h:737! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 5 PID: 2135 Comm: sshd Tainted: G B 5.16.0-rc6-dirty #373 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 RIP: release_pages+0x53f/0x840 Call Trace: free_pages_and_swap_cache+0x64/0x80 tlb_flush_mmu+0x6f/0x220 unmap_page_range+0xe6c/0x12c0 unmap_single_vma+0x90/0x170 unmap_vmas+0xc4/0x180 exit_mmap+0xde/0x3a0 mmput+0xa3/0x250 do_exit+0x564/0x1470 do_group_exit+0x3b/0x100 __do_sys_exit_group+0x13/0x20 __x64_sys_exit_group+0x16/0x20 do_syscall_64+0x34/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae Modules linked in: ---[ end trace e99579b570fe0649 ]--- RIP: 0010:release_pages+0x53f/0x840 Link: https://lkml.kernel.org/r/20211221074908.3910286-1-liushixin2@huawei.com Fixes: b94e02822deb ("mm,hwpoison: try to narrow window race for free pages") Signed-off-by: Liu Shixin <liushixin2@huawei.com> Reported-by: Hulk Robot <hulkci@huawei.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 25 December 2021, 20:20:56 UTC |
3479641 | SeongJae Park | 25 December 2021, 05:12:54 UTC | mm/damon/dbgfs: protect targets destructions with kdamond_lock DAMON debugfs interface iterates current monitoring targets in 'dbgfs_target_ids_read()' while holding the corresponding 'kdamond_lock'. However, it also destructs the monitoring targets in 'dbgfs_before_terminate()' without holding the lock. This can result in a use_after_free bug. This commit avoids the race by protecting the destruction with the corresponding 'kdamond_lock'. Link: https://lkml.kernel.org/r/20211221094447.2241-1-sj@kernel.org Reported-by: Sangwoo Bae <sangwoob@amazon.com> Fixes: 4bc05954d007 ("mm/damon: implement a debugfs-based user space interface") Signed-off-by: SeongJae Park <sj@kernel.org> Cc: <stable@vger.kernel.org> [5.15.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 25 December 2021, 20:20:56 UTC |
595ec19 | Thibaut Sautereau | 25 December 2021, 05:12:51 UTC | mm/page_alloc: fix __alloc_size attribute for alloc_pages_exact_nid The second parameter of alloc_pages_exact_nid is the one indicating the size of memory pointed by the returned pointer. Link: https://lkml.kernel.org/r/YbjEgwhn4bGblp//@coeus Fixes: abd58f38dfb4 ("mm/page_alloc: add __alloc_size attributes for better bounds checking") Signed-off-by: Thibaut Sautereau <thibaut.sautereau@ssi.gouv.fr> Acked-by: Kees Cook <keescook@chromium.org> Cc: Daniel Micay <danielmicay@gmail.com> Cc: Levente Polyak <levente@leventepolyak.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 25 December 2021, 20:20:56 UTC |
94ab10d | Hugh Dickins | 25 December 2021, 05:12:48 UTC | mm: delete unsafe BUG from page_cache_add_speculative() It is not easily reproducible, but on 5.16-rc I have several times hit the VM_BUG_ON_PAGE(PageTail(page), page) in page_cache_add_speculative(): usually from filemap_get_read_batch() for an ext4 read, yesterday from next_uptodate_page() from filemap_map_pages() for a shmem fault. That BUG used to be placed where page_ref_add_unless() had succeeded, but now it is placed before folio_ref_add_unless() is attempted: that is not safe, since it is only the acquired reference which makes the page safe from racing THP collapse or split. We could keep the BUG, checking PageTail only when folio_ref_try_add_rcu() has succeeded; but I don't think it adds much value - just delete it. Link: https://lkml.kernel.org/r/8b98fc6f-3439-8614-c3f3-945c659a1aba@google.com Fixes: 020853b6f5ea ("mm: Add folio_try_get_rcu()") Signed-off-by: Hugh Dickins <hughd@google.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: William Kucharski <william.kucharski@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 25 December 2021, 20:20:55 UTC |
e37e7b0 | Naoya Horiguchi | 25 December 2021, 05:12:45 UTC | mm, hwpoison: fix condition in free hugetlb page path When a memory error hits a tail page of a free hugepage, __page_handle_poison() is expected to be called to isolate the error in 4kB unit, but it's not called due to the outdated if-condition in memory_failure_hugetlb(). This loses the chance to isolate the error in the finer unit, so it's not optimal. Drop the condition. This "(p != head && TestSetPageHWPoison(head)" condition is based on the old semantics of PageHWPoison on hugepage (where PG_hwpoison flag was set on the subpage), so it's not necessray any more. By getting to set PG_hwpoison on head page for hugepages, concurrent error events on different subpages in a single hugepage can be prevented by TestSetPageHWPoison(head) at the beginning of memory_failure_hugetlb(). So dropping the condition should not reopen the race window originally mentioned in commit b985194c8c0a ("hwpoison, hugetlb: lock_page/unlock_page does not match for handling a free hugepage") [naoya.horiguchi@linux.dev: fix "HardwareCorrupted" counter] Link: https://lkml.kernel.org/r/20211220084851.GA1460264@u2004 Link: https://lkml.kernel.org/r/20211210110208.879740-1-naoya.horiguchi@linux.dev Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com> Reported-by: Fei Luo <luofei@unicloud.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: <stable@vger.kernel.org> [5.14+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 25 December 2021, 20:20:55 UTC |
7e5b901 | Randy Dunlap | 25 December 2021, 05:12:42 UTC | MAINTAINERS: mark more list instances as moderated Some lists that are moderated are not marked as moderated consistently, so mark them all as moderated. Link: https://lkml.kernel.org/r/20211209001330.18558-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Miquel Raynal <miquel.raynal@bootlin.com> Cc: Conor Culhane <conor.culhane@silvaco.com> Cc: Ryder Lee <ryder.lee@mediatek.com> Cc: Jianjun Wang <jianjun.wang@mediatek.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 25 December 2021, 20:20:55 UTC |
71d2bce | Philipp Rudo | 25 December 2021, 05:12:39 UTC | kernel/crash_core: suppress unknown crashkernel parameter warning When booting with crashkernel= on the kernel command line a warning similar to Kernel command line: ro console=ttyS0 crashkernel=256M Unknown kernel command line parameters "crashkernel=256M", will be passed to user space. is printed. This comes from crashkernel= being parsed independent from the kernel parameter handling mechanism. So the code in init/main.c doesn't know that crashkernel= is a valid kernel parameter and prints this incorrect warning. Suppress the warning by adding a dummy early_param handler for crashkernel=. Link: https://lkml.kernel.org/r/20211208133443.6867-1-prudo@redhat.com Fixes: 86d1919a4fb0 ("init: print out unknown kernel parameters") Signed-off-by: Philipp Rudo <prudo@redhat.com> Acked-by: Baoquan He <bhe@redhat.com> Cc: Andrew Halaney <ahalaney@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 25 December 2021, 20:20:55 UTC |
3386353 | Andrey Ryabinin | 25 December 2021, 05:12:35 UTC | mm: mempolicy: fix THP allocations escaping mempolicy restrictions alloc_pages_vma() may try to allocate THP page on the local NUMA node first: page = __alloc_pages_node(hpage_node, gfp | __GFP_THISNODE | __GFP_NORETRY, order); And if the allocation fails it retries allowing remote memory: if (!page && (gfp & __GFP_DIRECT_RECLAIM)) page = __alloc_pages_node(hpage_node, gfp, order); However, this retry allocation completely ignores memory policy nodemask allowing allocation to escape restrictions. The first appearance of this bug seems to be the commit ac5b2c18911f ("mm: thp: relax __GFP_THISNODE for MADV_HUGEPAGE mappings"). The bug disappeared later in the commit 89c83fb539f9 ("mm, thp: consolidate THP gfp handling into alloc_hugepage_direct_gfpmask") and reappeared again in slightly different form in the commit 76e654cc91bb ("mm, page_alloc: allow hugepage fallback to remote nodes when madvised") Fix this by passing correct nodemask to the __alloc_pages() call. The demonstration/reproducer of the problem: $ mount -oremount,size=4G,huge=always /dev/shm/ $ echo always > /sys/kernel/mm/transparent_hugepage/defrag $ cat mbind_thp.c #include <unistd.h> #include <sys/mman.h> #include <sys/stat.h> #include <fcntl.h> #include <assert.h> #include <stdlib.h> #include <stdio.h> #include <numaif.h> #define SIZE 2ULL << 30 int main(int argc, char **argv) { int fd; unsigned long long i; char *addr; pid_t pid; char buf[100]; unsigned long nodemask = 1; fd = open("/dev/shm/test", O_RDWR|O_CREAT); assert(fd > 0); assert(ftruncate(fd, SIZE) == 0); addr = mmap(NULL, SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); assert(mbind(addr, SIZE, MPOL_BIND, &nodemask, 2, MPOL_MF_STRICT|MPOL_MF_MOVE)==0); for (i = 0; i < SIZE; i+=4096) { addr[i] = 1; } pid = getpid(); snprintf(buf, sizeof(buf), "grep shm /proc/%d/numa_maps", pid); system(buf); sleep(10000); return 0; } $ gcc mbind_thp.c -o mbind_thp -lnuma $ numactl -H available: 2 nodes (0-1) node 0 cpus: 0 2 node 0 size: 1918 MB node 0 free: 1595 MB node 1 cpus: 1 3 node 1 size: 2014 MB node 1 free: 1731 MB node distances: node 0 1 0: 10 20 1: 20 10 $ rm -f /dev/shm/test; taskset -c 0 ./mbind_thp 7fd970a00000 bind:0 file=/dev/shm/test dirty=524288 active=0 N0=396800 N1=127488 kernelpagesize_kB=4 Link: https://lkml.kernel.org/r/20211208165343.22349-1-arbn@yandex-team.com Fixes: ac5b2c18911f ("mm: thp: relax __GFP_THISNODE for MADV_HUGEPAGE mappings") Signed-off-by: Andrey Ryabinin <arbn@yandex-team.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: David Rientjes <rientjes@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 25 December 2021, 20:20:55 UTC |
0129ab1 | Baokun Li | 25 December 2021, 05:12:32 UTC | kfence: fix memory leak when cat kfence objects Hulk robot reported a kmemleak problem: unreferenced object 0xffff93d1d8cc02e8 (size 248): comm "cat", pid 23327, jiffies 4624670141 (age 495992.217s) hex dump (first 32 bytes): 00 40 85 19 d4 93 ff ff 00 10 00 00 00 00 00 00 .@.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: seq_open+0x2a/0x80 full_proxy_open+0x167/0x1e0 do_dentry_open+0x1e1/0x3a0 path_openat+0x961/0xa20 do_filp_open+0xae/0x120 do_sys_openat2+0x216/0x2f0 do_sys_open+0x57/0x80 do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x44/0xa9 unreferenced object 0xffff93d419854000 (size 4096): comm "cat", pid 23327, jiffies 4624670141 (age 495992.217s) hex dump (first 32 bytes): 6b 66 65 6e 63 65 2d 23 32 35 30 3a 20 30 78 30 kfence-#250: 0x0 30 30 30 30 30 30 30 37 35 34 62 64 61 31 32 2d 0000000754bda12- backtrace: seq_read_iter+0x313/0x440 seq_read+0x14b/0x1a0 full_proxy_read+0x56/0x80 vfs_read+0xa5/0x1b0 ksys_read+0xa0/0xf0 do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x44/0xa9 I find that we can easily reproduce this problem with the following commands: cat /sys/kernel/debug/kfence/objects echo scan > /sys/kernel/debug/kmemleak cat /sys/kernel/debug/kmemleak The leaked memory is allocated in the stack below: do_syscall_64 do_sys_open do_dentry_open full_proxy_open seq_open ---> alloc seq_file vfs_read full_proxy_read seq_read seq_read_iter traverse ---> alloc seq_buf And it should have been released in the following process: do_syscall_64 syscall_exit_to_user_mode exit_to_user_mode_prepare task_work_run ____fput __fput full_proxy_release ---> free here However, the release function corresponding to file_operations is not implemented in kfence. As a result, a memory leak occurs. Therefore, the solution to this problem is to implement the corresponding release function. Link: https://lkml.kernel.org/r/20211206133628.2822545-1-libaokun1@huawei.com Fixes: 0ce20dd84089 ("mm: add Kernel Electric-Fence infrastructure") Signed-off-by: Baokun Li <libaokun1@huawei.com> Reported-by: Hulk Robot <hulkci@huawei.com> Acked-by: Marco Elver <elver@google.com> Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | 25 December 2021, 20:20:55 UTC |
b927dfc | Linus Torvalds | 24 December 2021, 17:02:24 UTC | Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm Pull ARM fixes from Russell King: - fix nommu after getting rid of mini-stack for ARMv7 - fix Thumb2 bug in iWMMXt exception handling * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 9169/1: entry: fix Thumb2 bug in iWMMXt exception handling ARM: 9160/1: NOMMU: Reload __secondary_data after PROCINFO_INITFUNC | 24 December 2021, 17:02:24 UTC |
c883118 | Linus Torvalds | 24 December 2021, 16:58:23 UTC | Merge tag 'platform-drivers-x86-v5.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver fixes from Hans de Goede: "Various bug-fixes" * tag 'platform-drivers-x86-v5.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: platform/x86: intel_pmc_core: fix memleak on registration failure platform/x86/intel: Remove X86_PLATFORM_DRIVERS_INTEL platform/x86: system76_acpi: Guard System76 EC specific functionality platform/x86: apple-gmux: use resource_size() with res platform/x86: amd-pmc: only use callbacks for suspend platform/mellanox: mlxbf-pmc: Fix an IS_ERR() vs NULL bug in mlxbf_pmc_map_counters | 24 December 2021, 16:58:23 UTC |
7a29b11 | Linus Torvalds | 24 December 2021, 01:15:23 UTC | Merge tag '5.16-rc5-ksmbd-fixes' of git://git.samba.org/ksmbd Pull ksmbd fixes from Steve French: "Three ksmbd fixes, all for stable as well. Two fix potential unitialized memory and one fixes a security problem where encryption is unitentionally disabled from some clients" * tag '5.16-rc5-ksmbd-fixes' of git://git.samba.org/ksmbd: ksmbd: disable SMB2_GLOBAL_CAP_ENCRYPTION for SMB 3.1.1 ksmbd: fix uninitialized symbol 'pntsd_size' ksmbd: fix error code in ndr_read_int32() | 24 December 2021, 01:15:23 UTC |
95b4011 | Linus Torvalds | 23 December 2021, 23:43:25 UTC | Merge tag 'drm-fixes-2021-12-24' of git://anongit.freedesktop.org/drm/drm Pull drm fixes from Dave Airlie: "Happy Xmas. Nothing major, one mediatek and a couple of i915 locking fixes. There might be a few stragglers over next week or so but I don't expect much before next release. mediatek: - NULL pointer check i915: - guc submission locking fixes" * tag 'drm-fixes-2021-12-24' of git://anongit.freedesktop.org/drm/drm: drm/i915/guc: Only assign guc_id.id when stealing guc_id drm/i915/guc: Use correct context lock when callig clr_context_registered drm/mediatek: hdmi: Perform NULL pointer check for mtk_hdmi_conf | 23 December 2021, 23:43:25 UTC |
a026fa5 | Linus Torvalds | 23 December 2021, 23:32:07 UTC | Merge tag 'io_uring-5.16-2021-12-23' of git://git.kernel.dk/linux-block Pull io_uring fix from Jens Axboe: "Single fix for not clearing kiocb->ki_pos back to 0 for a stream, destined for stable as well" * tag 'io_uring-5.16-2021-12-23' of git://git.kernel.dk/linux-block: io_uring: zero iocb->ki_pos for stream file types | 23 December 2021, 23:32:07 UTC |
7fe2bc1 | Linus Torvalds | 23 December 2021, 23:27:02 UTC | Merge branch 'ucount-rlimit-fixes-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull ucount fix from Eric Biederman: "This fixes a silly logic bug in the ucount rlimits code, where it was comparing against the wrong limit" * 'ucount-rlimit-fixes-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: ucounts: Fix rlimit max values check | 23 December 2021, 23:27:02 UTC |
76657ea | Linus Torvalds | 23 December 2021, 18:45:55 UTC | Merge tag 'net-5.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from netfilter. Current release - regressions: - revert "tipc: use consistent GFP flags" Previous releases - regressions: - igb: fix deadlock caused by taking RTNL in runtime resume path - accept UFOv6 packages in virtio_net_hdr_to_skb - netfilter: fix regression in looped (broad|multi)cast's MAC handling - bridge: fix ioctl old_deviceless bridge argument - ice: xsk: do not clear status_error0 for ntu + nb_buffs descriptor, avoid stalls when multiple sockets use an interface Previous releases - always broken: - inet: fully convert sk->sk_rx_dst to RCU rules - veth: ensure skb entering GRO are not cloned - sched: fix zone matching for invalid conntrack state - bonding: fix ad_actor_system option setting to default - nf_tables: fix use-after-free in nft_set_catchall_destroy() - lantiq_xrx200: increase buffer reservation to avoid mem corruption - ice: xsk: avoid leaking app buffers during clean up - tun: avoid double free in tun_free_netdev" * tag 'net-5.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (45 commits) net: stmmac: dwmac-visconti: Fix value of ETHER_CLK_SEL_FREQ_SEL_2P5M r8152: sync ocp base r8152: fix the force speed doesn't work for RTL8156 net: bridge: fix ioctl old_deviceless bridge argument net: stmmac: ptp: fix potentially overflowing expression net: dsa: tag_ocelot: use traffic class to map priority on injected header veth: ensure skb entering GRO are not cloned. asix: fix wrong return value in asix_check_host_enable() asix: fix uninit-value in asix_mdio_read() sfc: falcon: Check null pointer of rx_queue->page_ring sfc: Check null pointer of rx_queue->page_ring net: ks8851: Check for error irq drivers: net: smc911x: Check for error irq fjes: Check for error irq bonding: fix ad_actor_system option setting to default igb: fix deadlock caused by taking RTNL in RPM resume path gve: Correct order of processing device options net: skip virtio_net_hdr_set_proto if protocol already set net: accept UFOv6 packages in virtio_net_hdr_to_skb docs: networking: replace skb_hwtstamp_tx with skb_tstamp_tx ... | 23 December 2021, 18:45:55 UTC |
26a8b09 | Johan Hovold | 22 December 2021, 10:50:23 UTC | platform/x86: intel_pmc_core: fix memleak on registration failure In case device registration fails during module initialisation, the platform device structure needs to be freed using platform_device_put() to properly free all resources (e.g. the device name). Fixes: 938835aa903a ("platform/x86: intel_pmc_core: do not create a static struct device") Cc: stable@vger.kernel.org # 5.9 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20211222105023.6205-1-johan@kernel.org Signed-off-by: Hans de Goede <hdegoede@redhat.com> | 23 December 2021, 18:30:32 UTC |
391e597 | Nobuhiro Iwamatsu | 23 December 2021, 07:36:33 UTC | net: stmmac: dwmac-visconti: Fix value of ETHER_CLK_SEL_FREQ_SEL_2P5M ETHER_CLK_SEL_FREQ_SEL_2P5M is not 0 bit of the register. This is a value, which is 0. Fix from BIT(0) to 0. Reported-by: Yuji Ishikawa <yuji2.ishikawa@toshiba.co.jp> Fixes: b38dd98ff8d0 ("net: stmmac: Add Toshiba Visconti SoCs glue driver") Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> Link: https://lore.kernel.org/r/20211223073633.101306-1-nobuhiro1.iwamatsu@toshiba.co.jp Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 23 December 2021, 17:58:13 UTC |
65fd0c3 | Jakub Kicinski | 23 December 2021, 17:56:08 UTC | Merge branch 'r8152-fix-bugs' Hayes Wang says: ==================== r8152: fix bugs Patch #1 fix the issue of force speed mode for RTL8156. Patch #2 fix the issue of unexpected ocp_base. ==================== Link: https://lore.kernel.org/r/20211223092702.23841-386-nic_swsd@realtek.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 23 December 2021, 17:56:09 UTC |
b24edca | Hayes Wang | 23 December 2021, 09:27:02 UTC | r8152: sync ocp base There are some chances that the actual base of hardware is different from the value recorded by driver, so we have to reset the variable of ocp_base to sync it. Set ocp_base to -1. Then, it would be updated and the new base would be set to the hardware next time. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 23 December 2021, 17:56:06 UTC |
45bf944 | Hayes Wang | 23 December 2021, 09:27:01 UTC | r8152: fix the force speed doesn't work for RTL8156 It needs to set mdio force mode. Otherwise, link off always occurs when setting force speed. Fixes: 195aae321c82 ("r8152: support new chips") Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 23 December 2021, 17:56:06 UTC |
996a18e | Linus Torvalds | 23 December 2021, 17:55:58 UTC | Merge tag 'sound-5.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Quite a few small fixes, hopefully the last batch for 5.16. Most of them are device-specific quirks and/or fixes, and nothing looks scary for the late stage" * tag 'sound-5.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek: Fix quirk for Clevo NJ51CU ALSA: rawmidi - fix the uninitalized user_pversion ALSA: hda: intel-sdw-acpi: go through HDAS ACPI at max depth of 2 ALSA: hda: intel-sdw-acpi: harden detection of controller ALSA: hda/hdmi: Disable silent stream on GLK ALSA: hda/realtek: fix mute/micmute LEDs for a HP ProBook ASoC: meson: aiu: Move AIU_I2S_MISC hold setting to aiu-fifo-i2s ASoC: meson: aiu: fifo: Add missing dma_coerce_mask_and_coherent() ASoC: tas2770: Fix setting of high sample rates ASoC: rt5682: fix the wrong jack type detected ALSA: hda/realtek: Add new alc285-hp-amp-init model ALSA: hda/realtek: Amp init fixup for HP ZBook 15 G6 ASoC: tegra: Restore headphones jack name on Nyan Big ASoC: tegra: Add DAPM switches for headphones and mic jack ALSA: jack: Check the return value of kstrdup() ALSA: drivers: opl3: Fix incorrect use of vp->state ASoC: SOF: Intel: pci-tgl: add new ADL-P variant ASoC: SOF: Intel: pci-tgl: add ADL-N support | 23 December 2021, 17:55:58 UTC |
d95a562 | Remi Pommarel | 23 December 2021, 15:31:38 UTC | net: bridge: fix ioctl old_deviceless bridge argument Commit 561d8352818f ("bridge: use ndo_siocdevprivate") changed the source and destination arguments of copy_{to,from}_user in bridge's old_deviceless() from args[1] to uarg breaking SIOC{G,S}IFBR ioctls. Commit cbd7ad29a507 ("net: bridge: fix ioctl old_deviceless bridge argument") fixed only BRCTL_{ADD,DEL}_BRIDGES commands leaving BRCTL_GET_BRIDGES one untouched. The fixes BRCTL_GET_BRIDGES as well and has been tested with busybox's brctl. Example of broken brctl: $ brctl show bridge name bridge id STP enabled interfaces brctl: can't get bridge name for index 0: No such device or address Example of fixed brctl: $ brctl show bridge name bridge id STP enabled interfaces br0 8000.000000000000 no Fixes: 561d8352818f ("bridge: use ndo_siocdevprivate") Signed-off-by: Remi Pommarel <repk@triplefau.lt> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Link: https://lore.kernel.org/all/20211223153139.7661-2-repk@triplefau.lt/ Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 23 December 2021, 17:53:50 UTC |
eccffcf | Xiaoliang Yang | 23 December 2021, 07:39:28 UTC | net: stmmac: ptp: fix potentially overflowing expression Convert the u32 variable to type u64 in a context where expression of type u64 is required to avoid potential overflow. Fixes: e9e3720002f6 ("net: stmmac: ptp: update tas basetime after ptp adjust") Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com> Link: https://lore.kernel.org/r/20211223073928.37371-1-xiaoliang.yang_1@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 23 December 2021, 17:45:55 UTC |
ae2778a | Xiaoliang Yang | 23 December 2021, 07:22:11 UTC | net: dsa: tag_ocelot: use traffic class to map priority on injected header For Ocelot switches, the CPU injected frames have an injection header where it can specify the QoS class of the packet and the DSA tag, now it uses the SKB priority to set that. If a traffic class to priority mapping is configured on the netdevice (with mqprio for example ...), it won't be considered for CPU injected headers. This patch make the QoS class aligned to the priority to traffic class mapping if it exists. Fixes: 8dce89aa5f32 ("net: dsa: ocelot: add tagger for Ocelot/Felix switches") Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com> Signed-off-by: Marouen Ghodhbane <marouen.ghodhbane@nxp.com> Link: https://lore.kernel.org/r/20211223072211.33130-1-xiaoliang.yang_1@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 23 December 2021, 17:44:59 UTC |
3bf6f01 | Linus Torvalds | 23 December 2021, 17:44:29 UTC | Merge tag 'gpio-fixes-for-v5.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fixes from Bartosz Golaszewski: - fix interrupts when replugging the device in gpio-dln2 - remove the arbitrary timeout on virtio requests from gpio-virtio * tag 'gpio-fixes-for-v5.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: virtio: remove timeout gpio: dln2: Fix interrupts when replugging the device | 23 December 2021, 17:44:29 UTC |
9695b7d | Paolo Abeni | 22 December 2021, 18:39:52 UTC | veth: ensure skb entering GRO are not cloned. After commit d3256efd8e8b ("veth: allow enabling NAPI even without XDP"), if GRO is enabled on a veth device and TSO is disabled on the peer device, TCP skbs will go through the NAPI callback. If there is no XDP program attached, the veth code does not perform any share check, and shared/cloned skbs could enter the GRO engine. Ignat reported a BUG triggered later-on due to the above condition: [ 53.970529][ C1] kernel BUG at net/core/skbuff.c:3574! [ 53.981755][ C1] invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 53.982634][ C1] CPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.16.0-rc5+ #25 [ 53.982634][ C1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 [ 53.982634][ C1] RIP: 0010:skb_shift+0x13ef/0x23b0 [ 53.982634][ C1] Code: ea 03 0f b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 41 0c 00 00 41 80 7f 02 00 4d 8d b5 d0 00 00 00 0f 85 74 f5 ff ff <0f> 0b 4d 8d 77 20 be 04 00 00 00 4c 89 44 24 78 4c 89 f7 4c 89 8c [ 53.982634][ C1] RSP: 0018:ffff8881008f7008 EFLAGS: 00010246 [ 53.982634][ C1] RAX: 0000000000000000 RBX: ffff8881180b4c80 RCX: 0000000000000000 [ 53.982634][ C1] RDX: 0000000000000002 RSI: ffff8881180b4d3c RDI: ffff88810bc9cac2 [ 53.982634][ C1] RBP: ffff8881008f70b8 R08: ffff8881180b4cf4 R09: ffff8881180b4cf0 [ 53.982634][ C1] R10: ffffed1022999e5c R11: 0000000000000002 R12: 0000000000000590 [ 53.982634][ C1] R13: ffff88810f940c80 R14: ffff88810f940d50 R15: ffff88810bc9cac0 [ 53.982634][ C1] FS: 0000000000000000(0000) GS:ffff888235880000(0000) knlGS:0000000000000000 [ 53.982634][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.982634][ C1] CR2: 00007ff5f9b86680 CR3: 0000000108ce8004 CR4: 0000000000170ee0 [ 53.982634][ C1] Call Trace: [ 53.982634][ C1] <TASK> [ 53.982634][ C1] tcp_sacktag_walk+0xaba/0x18e0 [ 53.982634][ C1] tcp_sacktag_write_queue+0xe7b/0x3460 [ 53.982634][ C1] tcp_ack+0x2666/0x54b0 [ 53.982634][ C1] tcp_rcv_established+0x4d9/0x20f0 [ 53.982634][ C1] tcp_v4_do_rcv+0x551/0x810 [ 53.982634][ C1] tcp_v4_rcv+0x22ed/0x2ed0 [ 53.982634][ C1] ip_protocol_deliver_rcu+0x96/0xaf0 [ 53.982634][ C1] ip_local_deliver_finish+0x1e0/0x2f0 [ 53.982634][ C1] ip_sublist_rcv_finish+0x211/0x440 [ 53.982634][ C1] ip_list_rcv_finish.constprop.0+0x424/0x660 [ 53.982634][ C1] ip_list_rcv+0x2c8/0x410 [ 53.982634][ C1] __netif_receive_skb_list_core+0x65c/0x910 [ 53.982634][ C1] netif_receive_skb_list_internal+0x5f9/0xcb0 [ 53.982634][ C1] napi_complete_done+0x188/0x6e0 [ 53.982634][ C1] gro_cell_poll+0x10c/0x1d0 [ 53.982634][ C1] __napi_poll+0xa1/0x530 [ 53.982634][ C1] net_rx_action+0x567/0x1270 [ 53.982634][ C1] __do_softirq+0x28a/0x9ba [ 53.982634][ C1] run_ksoftirqd+0x32/0x60 [ 53.982634][ C1] smpboot_thread_fn+0x559/0x8c0 [ 53.982634][ C1] kthread+0x3b9/0x490 [ 53.982634][ C1] ret_from_fork+0x22/0x30 [ 53.982634][ C1] </TASK> Address the issue by skipping the GRO stage for shared or cloned skbs. To reduce the chance of OoO, try to unclone the skbs before giving up. v1 -> v2: - use avoid skb_copy and fallback to netif_receive_skb - Eric Reported-by: Ignat Korchagin <ignat@cloudflare.com> Fixes: d3256efd8e8b ("veth: allow enabling NAPI even without XDP") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Tested-by: Ignat Korchagin <ignat@cloudflare.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/b5f61c5602aab01bac8d711d8d1bfab0a4817db7.1640197544.git.pabeni@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 23 December 2021, 17:44:06 UTC |
0d81b5f | Linus Torvalds | 23 December 2021, 17:37:59 UTC | Merge tag 'mmc-v5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: "MMC core: - Disable card detect during shutdown MMC host: - mmci: Fixup tuning support for stm32_sdmmc - meson-mx-sdhc: Fix support for multi-block SDIO commands - sdhci-tegra: Fix support for eMMC HS400ES mode" * tag 'mmc-v5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: mmci: stm32: clear DLYB_CR after sending tuning command mmc: meson-mx-sdhc: Set MANUAL_STOP for multi-block SDIO commands mmc: core: Disable card detect during shutdown mmc: sdhci-tegra: Fix switch to HS400ES mode | 23 December 2021, 17:37:59 UTC |
c8cc50a | Linus Torvalds | 23 December 2021, 17:22:34 UTC | Merge tag 'arm-fixes-5.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC fixes from Arnd Bergmann: "This is my last set of fixes for 5.16, including - multiple code fixes for the op-tee firmware driver - Two patches for allwinner SoCs, one fixing the phy mode on a board, the other one fixing a driver bug in the "RSB" bus driver. This was originally targeted for 5.17, but seemed worth moving to 5.16 - Two small fixes for devicetree files on i.MX platforms, resolving problems with ethernet and i2c" * tag 'arm-fixes-5.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: optee: Suppress false positive kmemleak report in optee_handle_rpc() tee: optee: Fix incorrect page free bug arm64: dts: lx2160a: fix scl-gpios property name tee: handle lookup of shm with reference count 0 ARM: dts: imx6qdl-wandboard: Fix Ethernet support bus: sunxi-rsb: Fix shutdown arm64: dts: allwinner: orangepi-zero-plus: fix PHY mode | 23 December 2021, 17:22:34 UTC |
4f6c131 | Andy Shevchenko | 22 December 2021, 19:49:41 UTC | platform/x86/intel: Remove X86_PLATFORM_DRIVERS_INTEL While introduction of this menu brings a nice view in the configuration tools, it brought more issues than solves, i.e. it prevents to locate files in the intel/ subfolder without touching non-related Kconfig dependencies elsewhere. Drop X86_PLATFORM_DRIVERS_INTEL altogether. Note, on x86 it's enabled by default and it's quite unlikely anybody wants to disable all of the modules in this submenu. Fixes: 8bd836feb6ca ("platform/x86: intel_skl_int3472: Move to intel/ subfolder") Suggested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20211222194941.76054-1-andriy.shevchenko@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> | 23 December 2021, 16:26:34 UTC |
c449927 | Tim Crawford | 22 December 2021, 18:51:54 UTC | platform/x86: system76_acpi: Guard System76 EC specific functionality Certain functionality or its implementation in System76 EC firmware may be different to the proprietary ODM EC firmware. Introduce a new bool, `has_open_ec`, to guard our specific logic. Detect the use of this by looking for a custom ACPI method name used in System76 firmware. Signed-off-by: Tim Crawford <tcrawford@system76.com> Link: https://lore.kernel.org/r/20211222185154.4560-1-tcrawford@system76.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> | 23 December 2021, 16:26:28 UTC |
7b9762a | Jens Axboe | 23 December 2021, 03:26:56 UTC | io_uring: zero iocb->ki_pos for stream file types io_uring supports using offset == -1 for using the current file position, and we read that in as part of read/write command setup. For the non-iter read/write types we pass in NULL for the position pointer, but for the iter types we should not be passing any anything but 0 for the position for a stream. Clear kiocb->ki_pos if the file is a stream, don't leave it as -1. If we do, then the request will error with -ESPIPE. Fixes: ba04291eb66e ("io_uring: allow use of offset == -1 to mean file position") Link: https://github.com/axboe/liburing/discussions/501 Reported-by: Samuel Williams <samuel.williams@oriontransfer.co.nz> Signed-off-by: Jens Axboe <axboe@kernel.dk> | 23 December 2021, 03:34:32 UTC |
dbfba78 | Dave Airlie | 23 December 2021, 01:21:43 UTC | Merge tag 'drm-intel-fixes-2021-12-22' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes drm/i915 fixes for v5.16-rc7: - Fix fallout from guc submission locking rework Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87wnjwydhs.fsf@intel.com | 23 December 2021, 01:21:44 UTC |
ae95af9 | Dave Airlie | 23 December 2021, 00:54:58 UTC | Merge tag 'mediatek-drm-fixes-5.16' of https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-fixes Mediatek DRM Fixes for Linux 5.16 1. Perform NULL pointer check for mtk_hdmi_conf. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Chun-Kuang Hu <chunkuang.hu@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/1639956861-14873-1-git-send-email-chunkuang.hu@kernel.org | 23 December 2021, 00:55:04 UTC |
d1652b7 | Pavel Skripkin | 21 December 2021, 20:10:43 UTC | asix: fix wrong return value in asix_check_host_enable() If asix_read_cmd() returns 0 on 30th interation, 0 will be returned from asix_check_host_enable(), which is logically wrong. Fix it by returning -ETIMEDOUT explicitly if we have exceeded 30 iterations Also, replaced 30 with #define as suggested by Andrew Fixes: a786e3195d6a ("net: asix: fix uninit value bugs") Reported-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Pavel Skripkin <paskripkin@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/ecd3470ce6c2d5697ac635d0d3b14a47defb4acb.1640117288.git.paskripkin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 22 December 2021, 22:52:18 UTC |
8035b1a | Pavel Skripkin | 21 December 2021, 20:10:36 UTC | asix: fix uninit-value in asix_mdio_read() asix_read_cmd() may read less than sizeof(smsr) bytes and in this case smsr will be uninitialized. Fail log: BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 BUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497 asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497 Fixes: d9fe64e51114 ("net: asix: Add in_pm parameter") Reported-and-tested-by: syzbot+f44badb06036334e867a@syzkaller.appspotmail.com Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Pavel Skripkin <paskripkin@gmail.com> Link: https://lore.kernel.org/r/8966e3b514edf39857dd93603fc79ec02e000a75.1640117288.git.paskripkin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 22 December 2021, 22:52:18 UTC |
9b8bdd1 | Jiasheng Jiang | 20 December 2021, 14:03:44 UTC | sfc: falcon: Check null pointer of rx_queue->page_ring Because of the possible failure of the kcalloc, it should be better to set rx_queue->page_ptr_mask to 0 when it happens in order to maintain the consistency. Fixes: 5a6681e22c14 ("sfc: separate out SFC4000 ("Falcon") support into new sfc-falcon driver") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Acked-by: Martin Habets <habetsm.xilinx@gmail.com> Link: https://lore.kernel.org/r/20211220140344.978408-1-jiasheng@iscas.ac.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 22 December 2021, 20:25:18 UTC |
bdf1b5c | Jiasheng Jiang | 20 December 2021, 13:56:03 UTC | sfc: Check null pointer of rx_queue->page_ring Because of the possible failure of the kcalloc, it should be better to set rx_queue->page_ptr_mask to 0 when it happens in order to maintain the consistency. Fixes: 5a6681e22c14 ("sfc: separate out SFC4000 ("Falcon") support into new sfc-falcon driver") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Acked-by: Martin Habets <habetsm.xilinx@gmail.com> Link: https://lore.kernel.org/r/20211220135603.954944-1-jiasheng@iscas.ac.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 22 December 2021, 20:23:18 UTC |
bc491fb | Linus Torvalds | 22 December 2021, 19:39:53 UTC | Merge tag 'fixes-2021-12-22' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock Pull memblock fix from Mike Rapoport: "Fix memblock_phys_alloc() section mismatch error There are section mismatch errors when compiler refuses to inline one-line wrapper memblock_phys_alloc(). Make memblock_phys_alloc() __always_inline to avoid these mismatch issues" * tag 'fixes-2021-12-22' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: memblock: fix memblock_phys_alloc() section mismatch error | 22 December 2021, 19:39:53 UTC |
edca7cc | Werner Sembach | 15 December 2021, 19:16:46 UTC | ALSA: hda/realtek: Fix quirk for Clevo NJ51CU The Clevo NJ51CU comes either with the ALC293 or the ALC256 codec, but uses the 0x8686 subproduct id in both cases. The ALC256 codec needs a different quirk for the headset microphone working and and edditional quirk for sound working after suspend and resume. When waking up from s3 suspend the Coef 0x10 is set to 0x0220 instead of 0x0020 on the ALC256 codec. Setting the value manually makes the sound work again. This patch does this automatically. [ minor coding style fix by tiwai ] Signed-off-by: Werner Sembach <wse@tuxedocomputers.com> Fixes: b5acfe152abaa ("ALSA: hda/realtek: Add some Clove SSID in the ALC293(ALC1220)") Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20211215191646.844644-1-wse@tuxedocomputers.com Signed-off-by: Takashi Iwai <tiwai@suse.de> | 22 December 2021, 19:19:42 UTC |
39a8fc4 | Jaroslav Kysela | 18 December 2021, 12:39:25 UTC | ALSA: rawmidi - fix the uninitalized user_pversion The user_pversion was uninitialized for the user space file structure in the open function, because the file private structure use kmalloc for the allocation. The kernel ALSA sequencer code clears the file structure, so no additional fixes are required. Cc: stable@kernel.org Cc: broonie@kernel.org BugLink: https://github.com/alsa-project/alsa-lib/issues/178 Fixes: 09d23174402d ("ALSA: rawmidi: introduce SNDRV_RAWMIDI_IOCTL_USER_PVERSION") Reported-by: syzbot+88412ee8811832b00dbe@syzkaller.appspotmail.com Signed-off-by: Jaroslav Kysela <perex@perex.cz> Link: https://lore.kernel.org/r/20211218123925.2583847-1-perex@perex.cz Signed-off-by: Takashi Iwai <tiwai@suse.de> | 22 December 2021, 19:18:27 UTC |
78ea40e | Libin Yang | 21 December 2021, 01:08:17 UTC | ALSA: hda: intel-sdw-acpi: go through HDAS ACPI at max depth of 2 In the HDAS ACPI scope, the SoundWire may not be the direct child of HDAS. It needs to go through the ACPI table at max depth of 2 to find the SoundWire device from HDAS. Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20211221010817.23636-3-yung-chuan.liao@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de> | 22 December 2021, 19:17:47 UTC |
385f287 | Libin Yang | 21 December 2021, 01:08:16 UTC | ALSA: hda: intel-sdw-acpi: harden detection of controller The existing code currently sets a pointer to an ACPI handle before checking that it's actually a SoundWire controller. This can lead to issues where the graph walk continues and eventually fails, but the pointer was set already. This patch changes the logic so that the information provided to the caller is set when a controller is found. Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20211221010817.23636-2-yung-chuan.liao@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de> | 22 December 2021, 19:17:37 UTC |
b6fd774 | Ville Syrjälä | 22 December 2021, 14:53:50 UTC | ALSA: hda/hdmi: Disable silent stream on GLK The silent stream stuff recurses back into i915 audio component .get_power() from the .pin_eld_notify() hook. On GLK this will deadlock as i915 may already be holding the relevant modeset locks during .pin_eld_notify() and the GLK audio vs. CDCLK workaround will try to grab the same locks from .get_power(). Until someone comes up with a better fix just disable the silent stream support on GLK. Cc: stable@vger.kernel.org Cc: Harsha Priya <harshapriya.n@intel.com> Cc: Emmanuel Jillela <emmanuel.jillela@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2623 Fixes: 951894cf30f4 ("ALSA: hda/hdmi: Add Intel silent stream support") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20211222145350.24342-1-ville.syrjala@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de> | 22 December 2021, 19:16:38 UTC |
3f066e8 | Linus Torvalds | 22 December 2021, 18:17:16 UTC | Merge tag 'for-5.16/parisc-7' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc architecture fixes from Helge Deller: - Fix a bug in the C code which calculates the relevant futex spinlock based on the futex virtual address. In some cases a wrong spinlock (compared to what is calculated in the assembly code path) was choosen which then can lead to deadlocks. - The 64-bit kernel missed to clip the LWS number in the Light-weight-syscall path for 32-bit processes. - Prevent CPU register dump to show stale value in IIR register on access rights traps. - Remove unused ARCH_DEFCONFIG entries. * tag 'for-5.16/parisc-7' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: remove ARCH_DEFCONFIG parisc: Fix mask used to select futex spinlock parisc: Correct completer in lws start parisc: Clear stale IIR value on instruction access rights trap | 22 December 2021, 18:17:16 UTC |
0740040 | Linus Torvalds | 22 December 2021, 18:11:17 UTC | Merge tag 'for-linus-5.16-3' of git://github.com/cminyard/linux-ipmi Pull IPMI fixes from Corey Minyard: "Fix some IPMI crashes Some crash fixes have come in dealing with various error handling issues. They have sat in next for 5 days or more without issue, and they are fairly critical" * tag 'for-linus-5.16-3' of git://github.com/cminyard/linux-ipmi: ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module ipmi: fix initialization when workqueue allocation fails ipmi: bail out if init_srcu_struct fails ipmi: ssif: initialize ssif_info->client early | 22 December 2021, 18:11:17 UTC |
c9ea870 | Linus Torvalds | 22 December 2021, 18:06:32 UTC | Merge tag 'tomoyo-pr-20211222' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1 Pull tomoyo fixes from Tetsuo Handa: "Two overhead reduction patches for testing/fuzzing environment" * tag 'tomoyo-pr-20211222' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1: tomoyo: use hweight16() in tomoyo_domain_quota_is_ok() tomoyo: Check exceeded quota early in tomoyo_domain_quota_is_ok(). | 22 December 2021, 18:06:32 UTC |
e19e226 | Linus Torvalds | 22 December 2021, 18:02:08 UTC | Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fix from Herbert Xu: "Fix a regression in the qat driver" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: qat - do not handle PFVF sources for qat_4xxx | 22 December 2021, 18:02:08 UTC |
d7f5547 | Jackie Liu | 17 December 2021, 02:07:54 UTC | memblock: fix memblock_phys_alloc() section mismatch error Fix modpost Section mismatch error in memblock_phys_alloc() [...] WARNING: modpost: vmlinux.o(.text.unlikely+0x1dcc): Section mismatch in reference from the function memblock_phys_alloc() to the function .init.text:memblock_phys_alloc_range() The function memblock_phys_alloc() references the function __init memblock_phys_alloc_range(). This is often because memblock_phys_alloc lacks a __init annotation or the annotation of memblock_phys_alloc_range is wrong. ERROR: modpost: Section mismatches detected. Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them. [...] memblock_phys_alloc() is a one-line wrapper, make it __always_inline to avoid these section mismatches. Reported-by: k2ci <kernel-bot@kylinos.cn> Suggested-by: Mike Rapoport <rppt@kernel.org> Signed-off-by: Jackie Liu <liuyun01@kylinos.cn> [rppt: slightly massaged changelog ] Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Link: https://lore.kernel.org/r/20211217020754.2874872-1-liu.yun@linux.dev | 22 December 2021, 17:35:29 UTC |
065807d | Takashi Iwai | 22 December 2021, 17:07:27 UTC | Merge tag 'asoc-fix-v5.16-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v5.16 This is a relatively large set of driver specific changes so it may make sense to hold off to v5.17, though picking some over might be good. It's a combination of new device IDs and fixes for various driver specific things which are all small and of the usual "really bad if you're running into them" level, especially the Tegra ones. | 22 December 2021, 17:07:27 UTC |
99d7fbb | Jiasheng Jiang | 22 December 2021, 07:59:44 UTC | net: ks8851: Check for error irq Because platform_get_irq() could fail and return error irq. Therefore, it might be better to check it if order to avoid the use of error irq. Fixes: 797047f875b5 ("net: ks8851: Implement Parallel bus operations") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Signed-off-by: David S. Miller <davem@davemloft.net> | 22 December 2021, 10:23:50 UTC |
cb93b3e | Jiasheng Jiang | 22 December 2021, 07:41:12 UTC | drivers: net: smc911x: Check for error irq Because platform_get_irq() could fail and return error irq. Therefore, it might be better to check it if order to avoid the use of error irq. Fixes: ae150435b59e ("smsc: Move the SMC (SMSC) drivers") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Signed-off-by: David S. Miller <davem@davemloft.net> | 22 December 2021, 10:23:03 UTC |
db6d6af | Jiasheng Jiang | 22 December 2021, 07:12:07 UTC | fjes: Check for error irq I find that platform_get_irq() will not always succeed. It will return error irq in case of the failure. Therefore, it might be better to check it if order to avoid the use of error irq. Fixes: 658d439b2292 ("fjes: Introduce FUJITSU Extended Socket Network Device driver") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Signed-off-by: David S. Miller <davem@davemloft.net> | 22 December 2021, 10:22:13 UTC |
aacb201 | Masahiro Yamada | 13 December 2021, 02:40:44 UTC | parisc: remove ARCH_DEFCONFIG Commit 2a86f6612164 ("kbuild: use KBUILD_DEFCONFIG as the fallback for DEFCONFIG_LIST") removed ARCH_DEFCONFIG because it does not make much sense. In the same development cycle, Commit ededa081ed20 ("parisc: Fix defconfig selection") added ARCH_DEFCONFIG for parisc. Please use KBUILD_DEFCONFIG in arch/*/Makefile for defconfig selection. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Helge Deller <deller@gmx.de> Signed-off-by: Helge Deller <deller@gmx.de> | 22 December 2021, 08:02:10 UTC |
1c15b05 | Fernando Fernandez Mancera | 21 December 2021, 11:13:45 UTC | bonding: fix ad_actor_system option setting to default When 802.3ad bond mode is configured the ad_actor_system option is set to "00:00:00:00:00:00". But when trying to set the all-zeroes MAC as actors' system address it was failing with EINVAL. An all-zeroes ethernet address is valid, only multicast addresses are not valid values. Fixes: 171a42c38c6e ("bonding: add netlink support for sys prio, actor sys mac, and port key") Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com> Link: https://lore.kernel.org/r/20211221111345.2462-1-ffmancera@riseup.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 22 December 2021, 00:54:19 UTC |
dcce50e | Josh Poimboeuf | 08 November 2021, 22:35:59 UTC | compiler.h: Fix annotation macro misplacement with Clang When building with Clang and CONFIG_TRACE_BRANCH_PROFILING, there are a lot of unreachable warnings, like: arch/x86/kernel/traps.o: warning: objtool: handle_xfd_event()+0x134: unreachable instruction Without an input to the inline asm, 'volatile' is ignored for some reason and Clang feels free to move the reachable() annotation away from its intended location. Fix that by re-adding the counter value to the inputs. Fixes: f1069a8756b9 ("compiler.h: Avoid using inline asm operand modifiers") Fixes: c199f64ff93c ("instrumentation.h: Avoid using inline asm operand modifiers") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/0417e96909b97a406323409210de7bf13df0b170.1636410380.git.jpoimboe@redhat.com Cc: Peter Zijlstra <peterz@infradead.org> Cc: x86@kernel.org Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Miroslav Benes <mbenes@suse.cz> | 21 December 2021, 23:09:46 UTC |
cb8747b | Ismael Luceno | 15 November 2021, 13:46:47 UTC | uapi: Fix undefined __always_inline on non-glibc systems This macro is defined by glibc itself, which makes the issue go unnoticed on those systems. On non-glibc systems it causes build failures on several utilities and libraries, like bpftool and objtool. Fixes: 1d509f2a6ebc ("x86/insn: Support big endian cross-compiles") Fixes: 2d7ce0e8a704 ("tools/virtio: more stubs") Fixes: 3fb321fde22d ("selftests/net: ipv6 flowlabel") Fixes: 50b3ed57dee9 ("selftests/bpf: test bpf flow dissection") Fixes: 9cacf81f8161 ("bpf: Remove extra lock_sock for TCP_ZEROCOPY_RECEIVE") Fixes: a4b2061242ec ("tools include uapi: Grab a copy of linux/in.h") Fixes: b12d6ec09730 ("bpf: btf: add btf print functionality") Fixes: c0dd967818a2 ("tools, include: Grab a copy of linux/erspan.h") Fixes: c4b6014e8bb0 ("tools: Add copy of perf_event.h to tools/include/linux/") Signed-off-by: Ismael Luceno <ismael@iodev.co.uk> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20211115134647.1921-1-ismael@iodev.co.uk Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> | 21 December 2021, 23:09:46 UTC |
2f47a9a | Linus Torvalds | 21 December 2021, 20:31:55 UTC | Merge tag 'pm-5.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fix from Rafael Wysocki: "Fix a recent regression causing the loop in dpm_prepare() to become infinite if one of the device ->prepare() callbacks returns an error" * tag 'pm-5.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: sleep: Fix error handling in dpm_prepare() | 21 December 2021, 20:31:55 UTC |
ca0ea8a | Linus Torvalds | 21 December 2021, 20:25:57 UTC | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm fixes from Paolo Bonzini: - Fix for compilation of selftests on non-x86 architectures - Fix for kvm_run->if_flag on SEV-ES - Fix for page table use-after-free if yielding during exit_mm() - Improve behavior when userspace starts a nested guest with invalid state - Fix missed wakeup with assigned devices but no VT-d posted interrupts - Do not tell userspace to save/restore an unsupported PMU MSR * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: VMX: Wake vCPU when delivering posted IRQ even if vCPU == this vCPU KVM: selftests: Add test to verify TRIPLE_FAULT on invalid L2 guest state KVM: VMX: Fix stale docs for kvm-intel.emulate_invalid_guest_state KVM: nVMX: Synthesize TRIPLE_FAULT for L2 if emulation is required KVM: VMX: Always clear vmx->fail on emulation_required selftests: KVM: Fix non-x86 compiling KVM: x86: Always set kvm_run->if_flag KVM: x86/mmu: Don't advance iterator after restart due to yielding KVM: x86: remove PMU FIXED_CTR3 from msrs_to_save_all | 21 December 2021, 20:25:57 UTC |
d3a5a68 | John David Anglin | 21 December 2021, 18:33:16 UTC | parisc: Fix mask used to select futex spinlock The address bits used to select the futex spinlock need to match those used in the LWS code in syscall.S. The mask 0x3f8 only selects 7 bits. It should select 8 bits. This change fixes the glibc nptl/tst-cond24 and nptl/tst-cond25 tests. Signed-off-by: John David Anglin <dave.anglin@bell.net> Fixes: 53a42b6324b8 ("parisc: Switch to more fine grained lws locks") Cc: stable@vger.kernel.org # 5.10+ Signed-off-by: Helge Deller <deller@gmx.de> | 21 December 2021, 20:15:59 UTC |
8f66fce | John David Anglin | 21 December 2021, 18:21:22 UTC | parisc: Correct completer in lws start The completer in the "or,ev %r1,%r30,%r30" instruction is reversed, so we are not clipping the LWS number when we are called from a 32-bit process (W=0). We need to nulify the following depdi instruction when the least-significant bit of %r30 is 1. If the %r20 register is not clipped, a user process could perform a LWS call that would branch to an undefined location in the kernel and potentially crash the machine. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: stable@vger.kernel.org # 4.19+ Signed-off-by: Helge Deller <deller@gmx.de> | 21 December 2021, 20:07:39 UTC |
5dbdc4c | Linus Torvalds | 21 December 2021, 20:02:36 UTC | Merge tag 'nfsd-5.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd fix from Chuck Lever: "Address a buffer overrun reported by Anatoly Trosinenko" * tag 'nfsd-5.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: NFSD: Fix READDIR buffer overflow | 21 December 2021, 20:02:36 UTC |
eb66fb0 | Wang Qing | 14 December 2021, 12:18:36 UTC | platform/x86: apple-gmux: use resource_size() with res This should be (res->end - res->start + 1) here actually, use resource_size() derectly. Signed-off-by: Wang Qing <wangqing@vivo.com> Link: https://lore.kernel.org/r/1639484316-75873-1-git-send-email-wangqing@vivo.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> | 21 December 2021, 18:35:33 UTC |
09fc140 | Mario Limonciello | 10 December 2021, 14:35:29 UTC | platform/x86: amd-pmc: only use callbacks for suspend This driver is intended to be used exclusively for suspend to idle so callbacks to send OS_HINT during hibernate and S5 will set OS_HINT at the wrong time leading to an undefined behavior. Cc: stable@vger.kernel.org Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://lore.kernel.org/r/20211210143529.10594-1-mario.limonciello@amd.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> | 21 December 2021, 18:35:27 UTC |
804034c | Miaoqian Lin | 10 December 2021, 07:07:53 UTC | platform/mellanox: mlxbf-pmc: Fix an IS_ERR() vs NULL bug in mlxbf_pmc_map_counters The devm_ioremap() function returns NULL on error, it doesn't return error pointers. Also according to doc of device_property_read_u64_array, values in info array are properties of device or NULL. Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20211210070753.10761-1-linmq006@gmail.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> | 21 December 2021, 18:35:22 UTC |
fdba608 | Sean Christopherson | 21 December 2021, 15:37:00 UTC | KVM: VMX: Wake vCPU when delivering posted IRQ even if vCPU == this vCPU Drop a check that guards triggering a posted interrupt on the currently running vCPU, and more importantly guards waking the target vCPU if triggering a posted interrupt fails because the vCPU isn't IN_GUEST_MODE. If a vIRQ is delivered from asynchronous context, the target vCPU can be the currently running vCPU and can also be blocking, in which case skipping kvm_vcpu_wake_up() is effectively dropping what is supposed to be a wake event for the vCPU. The "do nothing" logic when "vcpu == running_vcpu" mostly works only because the majority of calls to ->deliver_posted_interrupt(), especially when using posted interrupts, come from synchronous KVM context. But if a device is exposed to the guest using vfio-pci passthrough, the VFIO IRQ and vCPU are bound to the same pCPU, and the IRQ is _not_ configured to use posted interrupts, wake events from the device will be delivered to KVM from IRQ context, e.g. vfio_msihandler() | |-> eventfd_signal() | |-> ... | |-> irqfd_wakeup() | |->kvm_arch_set_irq_inatomic() | |-> kvm_irq_delivery_to_apic_fast() | |-> kvm_apic_set_irq() This also aligns the non-nested and nested usage of triggering posted interrupts, and will allow for additional cleanups. Fixes: 379a3c8ee444 ("KVM: VMX: Optimize posted-interrupt delivery for timer fastpath") Cc: stable@vger.kernel.org Reported-by: Longpeng (Mike) <longpeng2@huawei.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Message-Id: <20211208015236.1616697-18-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> | 21 December 2021, 17:39:03 UTC |
1c3e979 | Linus Torvalds | 21 December 2021, 17:30:32 UTC | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid Pull HID fixes from Jiri Kosina: - NULL pointer dereference fix in Vivaldi driver (Jiasheng Jiang) - regression fix for device probing in Holtek driver (Benjamin Tissoires) * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: HID: potential dereference of null pointer HID: holtek: fix mouse probing | 21 December 2021, 17:30:32 UTC |
3e4d9a4 | Vincent Whitchurch | 20 December 2021, 13:06:56 UTC | gpio: virtio: remove timeout The driver imposes an arbitrary one second timeout on virtio requests, but the specification doesn't prevent the virtio device from taking longer to process requests, so remove this timeout to support all systems and device implementations. Fixes: 3a29355a22c0275fe86 ("gpio: Add virtio-gpio driver") Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl> | 21 December 2021, 15:22:58 UTC |
ffb76a8 | Wu Bo | 21 December 2021, 07:00:34 UTC | ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module Hi, When testing install and uninstall of ipmi_si.ko and ipmi_msghandler.ko, the system crashed. The log as follows: [ 141.087026] BUG: unable to handle kernel paging request at ffffffffc09b3a5a [ 141.087241] PGD 8fe4c0d067 P4D 8fe4c0d067 PUD 8fe4c0f067 PMD 103ad89067 PTE 0 [ 141.087464] Oops: 0010 [#1] SMP NOPTI [ 141.087580] CPU: 67 PID: 668 Comm: kworker/67:1 Kdump: loaded Not tainted 4.18.0.x86_64 #47 [ 141.088009] Workqueue: events 0xffffffffc09b3a40 [ 141.088009] RIP: 0010:0xffffffffc09b3a5a [ 141.088009] Code: Bad RIP value. [ 141.088009] RSP: 0018:ffffb9094e2c3e88 EFLAGS: 00010246 [ 141.088009] RAX: 0000000000000000 RBX: ffff9abfdb1f04a0 RCX: 0000000000000000 [ 141.088009] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246 [ 141.088009] RBP: 0000000000000000 R08: ffff9abfffee3cb8 R09: 00000000000002e1 [ 141.088009] R10: ffffb9094cb73d90 R11: 00000000000f4240 R12: ffff9abfffee8700 [ 141.088009] R13: 0000000000000000 R14: ffff9abfdb1f04a0 R15: ffff9abfdb1f04a8 [ 141.088009] FS: 0000000000000000(0000) GS:ffff9abfffec0000(0000) knlGS:0000000000000000 [ 141.088009] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 141.088009] CR2: ffffffffc09b3a30 CR3: 0000008fe4c0a001 CR4: 00000000007606e0 [ 141.088009] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 141.088009] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 141.088009] PKRU: 55555554 [ 141.088009] Call Trace: [ 141.088009] ? process_one_work+0x195/0x390 [ 141.088009] ? worker_thread+0x30/0x390 [ 141.088009] ? process_one_work+0x390/0x390 [ 141.088009] ? kthread+0x10d/0x130 [ 141.088009] ? kthread_flush_work_fn+0x10/0x10 [ 141.088009] ? ret_from_fork+0x35/0x40] BUG: unable to handle kernel paging request at ffffffffc0b28a5a [ 200.223240] PGD 97fe00d067 P4D 97fe00d067 PUD 97fe00f067 PMD a580cbf067 PTE 0 [ 200.223464] Oops: 0010 [#1] SMP NOPTI [ 200.223579] CPU: 63 PID: 664 Comm: kworker/63:1 Kdump: loaded Not tainted 4.18.0.x86_64 #46 [ 200.224008] Workqueue: events 0xffffffffc0b28a40 [ 200.224008] RIP: 0010:0xffffffffc0b28a5a [ 200.224008] Code: Bad RIP value. [ 200.224008] RSP: 0018:ffffbf3c8e2a3e88 EFLAGS: 00010246 [ 200.224008] RAX: 0000000000000000 RBX: ffffa0799ad6bca0 RCX: 0000000000000000 [ 200.224008] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246 [ 200.224008] RBP: 0000000000000000 R08: ffff9fe43fde3cb8 R09: 00000000000000d5 [ 200.224008] R10: ffffbf3c8cb53d90 R11: 00000000000f4240 R12: ffff9fe43fde8700 [ 200.224008] R13: 0000000000000000 R14: ffffa0799ad6bca0 R15: ffffa0799ad6bca8 [ 200.224008] FS: 0000000000000000(0000) GS:ffff9fe43fdc0000(0000) knlGS:0000000000000000 [ 200.224008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 200.224008] CR2: ffffffffc0b28a30 CR3: 00000097fe00a002 CR4: 00000000007606e0 [ 200.224008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 200.224008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 200.224008] PKRU: 55555554 [ 200.224008] Call Trace: [ 200.224008] ? process_one_work+0x195/0x390 [ 200.224008] ? worker_thread+0x30/0x390 [ 200.224008] ? process_one_work+0x390/0x390 [ 200.224008] ? kthread+0x10d/0x130 [ 200.224008] ? kthread_flush_work_fn+0x10/0x10 [ 200.224008] ? ret_from_fork+0x35/0x40 [ 200.224008] kernel fault(0x1) notification starting on CPU 63 [ 200.224008] kernel fault(0x1) notification finished on CPU 63 [ 200.224008] CR2: ffffffffc0b28a5a [ 200.224008] ---[ end trace c82a412d93f57412 ]--- The reason is as follows: T1: rmmod ipmi_si. ->ipmi_unregister_smi() -> ipmi_bmc_unregister() -> __ipmi_bmc_unregister() -> kref_put(&bmc->usecount, cleanup_bmc_device); -> schedule_work(&bmc->remove_work); T2: rmmod ipmi_msghandler. ipmi_msghander module uninstalled, and the module space will be freed. T3: bmc->remove_work doing cleanup the bmc resource. -> cleanup_bmc_work() -> platform_device_unregister(&bmc->pdev); -> platform_device_del(pdev); -> device_del(&pdev->dev); -> kobject_uevent(&dev->kobj, KOBJ_REMOVE); -> kobject_uevent_env() -> dev_uevent() -> if (dev->type && dev->type->name) 'dev->type'(bmc_device_type) pointer space has freed when uninstall ipmi_msghander module, 'dev->type->name' cause the system crash. drivers/char/ipmi/ipmi_msghandler.c: 2820 static const struct device_type bmc_device_type = { 2821 .groups = bmc_dev_attr_groups, 2822 }; Steps to reproduce: Add a time delay in cleanup_bmc_work() function, and uninstall ipmi_si and ipmi_msghandler module. 2910 static void cleanup_bmc_work(struct work_struct *work) 2911 { 2912 struct bmc_device *bmc = container_of(work, struct bmc_device, 2913 remove_work); 2914 int id = bmc->pdev.id; /* Unregister overwrites id */ 2915 2916 msleep(3000); <--- 2917 platform_device_unregister(&bmc->pdev); 2918 ida_simple_remove(&ipmi_bmc_ida, id); 2919 } Use 'remove_work_wq' instead of 'system_wq' to solve this issues. Fixes: b2cfd8ab4add ("ipmi: Rework device id and guid handling to catch changing BMCs") Signed-off-by: Wu Bo <wubo40@huawei.com> Message-Id: <1640070034-56671-1-git-send-email-wubo40@huawei.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> | 21 December 2021, 14:04:42 UTC |
ff31ee0 | Yann Gautier | 15 December 2021, 14:17:26 UTC | mmc: mmci: stm32: clear DLYB_CR after sending tuning command During test campaign, and especially after several unbind/bind sequences, it has been seen that the SD-card on SDMMC1 thread could freeze. The freeze always appear on a CMD23 following a CMD19. Checking SDMMC internal registers shows that the tuning command (CMD19) has failed. The freeze is then due to the delay block involved in the tuning sequence. To correct this, clear the delay block register DLYB_CR register after the tuning commands. Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com> Signed-off-by: Yann Gautier <yann.gautier@foss.st.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Fixes: 1103f807a3b9 ("mmc: mmci_sdmmc: Add execute tuning with delay block") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211215141727.4901-4-yann.gautier@foss.st.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> | 21 December 2021, 12:03:51 UTC |
ac8c58f | Heiner Kallweit | 20 December 2021, 20:18:44 UTC | igb: fix deadlock caused by taking RTNL in RPM resume path Recent net core changes caused an issue with few Intel drivers (reportedly igb), where taking RTNL in RPM resume path results in a deadlock. See [0] for a bug report. I don't think the core changes are wrong, but taking RTNL in RPM resume path isn't needed. The Intel drivers are the only ones doing this. See [1] for a discussion on the issue. Following patch changes the RPM resume path to not take RTNL. [0] https://bugzilla.kernel.org/show_bug.cgi?id=215129 [1] https://lore.kernel.org/netdev/20211125074949.5f897431@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com/t/ Fixes: bd869245a3dc ("net: core: try to runtime-resume detached device in __dev_open") Fixes: f32a21376573 ("ethtool: runtime-resume netdev parent before ethtool ioctl ops") Tested-by: Martin Stolpe <martin.stolpe@gmail.com> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://lore.kernel.org/r/20211220201844.2714498-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 21 December 2021, 02:48:09 UTC |
1f06f7d | Jeroen de Borst | 20 December 2021, 19:27:46 UTC | gve: Correct order of processing device options The legacy raw addressing device option was processed before the new RDA queue format option. This caused the supported features mask, which is provided only on the RDA queue format option, not to be set. This disabled jumbo-frame support when using raw adressing. Fixes: 255489f5b33c ("gve: Add a jumbo-frame device option") Signed-off-by: Jeroen de Borst <jeroendb@google.com> Link: https://lore.kernel.org/r/20211220192746.2900594-1-jeroendb@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 21 December 2021, 02:47:56 UTC |
1ed1d59 | Willem de Bruijn | 20 December 2021, 14:50:27 UTC | net: skip virtio_net_hdr_set_proto if protocol already set virtio_net_hdr_set_proto infers skb->protocol from the virtio_net_hdr gso_type, to avoid packets getting dropped for lack of a proto type. Its protocol choice is a guess, especially in the case of UFO, where the single VIRTIO_NET_HDR_GSO_UDP label covers both UFOv4 and UFOv6. Skip this best effort if the field is already initialized. Whether explicitly from userspace, or implicitly based on an earlier call to dev_parse_header_protocol (which is more robust, but was introduced after this patch). Fixes: 9d2f67e43b73 ("net/packet: fix packet drop as of virtio gso") Signed-off-by: Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/20211220145027.2784293-1-willemdebruijn.kernel@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 21 December 2021, 02:47:37 UTC |
7e5cced | Willem de Bruijn | 20 December 2021, 14:49:01 UTC | net: accept UFOv6 packages in virtio_net_hdr_to_skb Skb with skb->protocol 0 at the time of virtio_net_hdr_to_skb may have a protocol inferred from virtio_net_hdr with virtio_net_hdr_set_proto. Unlike TCP, UDP does not have separate types for IPv4 and IPv6. Type VIRTIO_NET_HDR_GSO_UDP is guessed to be IPv4/UDP. As of the below commit, UFOv6 packets are dropped due to not matching the protocol as obtained from dev_parse_header_protocol. Invert the test to take that L2 protocol field as starting point and pass both UFOv4 and UFOv6 for VIRTIO_NET_HDR_GSO_UDP. Fixes: 924a9bc362a5 ("net: check if protocol extracted by virtio_net_hdr_set_proto is correct") Link: https://lore.kernel.org/netdev/CABcq3pG9GRCYqFDBAJ48H1vpnnX=41u+MhQnayF1ztLH4WX0Fw@mail.gmail.com/ Reported-by: Andrew Melnichenko <andrew@daynix.com> Signed-off-by: Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/20211220144901.2784030-1-willemdebruijn.kernel@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 21 December 2021, 02:47:27 UTC |
a9725e1 | Willem de Bruijn | 20 December 2021, 14:46:08 UTC | docs: networking: replace skb_hwtstamp_tx with skb_tstamp_tx Tiny doc fix. The hardware transmit function was called skb_tstamp_tx from its introduction in commit ac45f602ee3d ("net: infrastructure for hardware time stamping") in the same series as this documentation. Fixes: cb9eff097831 ("net: new user space API for time stamping of incoming and outgoing packets") Signed-off-by: Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/20211220144608.2783526-1-willemdebruijn.kernel@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 21 December 2021, 02:47:11 UTC |
8f905c0 | Eric Dumazet | 20 December 2021, 14:33:30 UTC | inet: fully convert sk->sk_rx_dst to RCU rules syzbot reported various issues around early demux, one being included in this changelog [1] sk->sk_rx_dst is using RCU protection without clearly documenting it. And following sequences in tcp_v4_do_rcv()/tcp_v6_do_rcv() are not following standard RCU rules. [a] dst_release(dst); [b] sk->sk_rx_dst = NULL; They look wrong because a delete operation of RCU protected pointer is supposed to clear the pointer before the call_rcu()/synchronize_rcu() guarding actual memory freeing. In some cases indeed, dst could be freed before [b] is done. We could cheat by clearing sk_rx_dst before calling dst_release(), but this seems the right time to stick to standard RCU annotations and debugging facilities. [1] BUG: KASAN: use-after-free in dst_check include/net/dst.h:470 [inline] BUG: KASAN: use-after-free in tcp_v4_early_demux+0x95b/0x960 net/ipv4/tcp_ipv4.c:1792 Read of size 2 at addr ffff88807f1cb73a by task syz-executor.5/9204 CPU: 0 PID: 9204 Comm: syz-executor.5 Not tainted 5.16.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247 __kasan_report mm/kasan/report.c:433 [inline] kasan_report.cold+0x83/0xdf mm/kasan/report.c:450 dst_check include/net/dst.h:470 [inline] tcp_v4_early_demux+0x95b/0x960 net/ipv4/tcp_ipv4.c:1792 ip_rcv_finish_core.constprop.0+0x15de/0x1e80 net/ipv4/ip_input.c:340 ip_list_rcv_finish.constprop.0+0x1b2/0x6e0 net/ipv4/ip_input.c:583 ip_sublist_rcv net/ipv4/ip_input.c:609 [inline] ip_list_rcv+0x34e/0x490 net/ipv4/ip_input.c:644 __netif_receive_skb_list_ptype net/core/dev.c:5508 [inline] __netif_receive_skb_list_core+0x549/0x8e0 net/core/dev.c:5556 __netif_receive_skb_list net/core/dev.c:5608 [inline] netif_receive_skb_list_internal+0x75e/0xd80 net/core/dev.c:5699 gro_normal_list net/core/dev.c:5853 [inline] gro_normal_list net/core/dev.c:5849 [inline] napi_complete_done+0x1f1/0x880 net/core/dev.c:6590 virtqueue_napi_complete drivers/net/virtio_net.c:339 [inline] virtnet_poll+0xca2/0x11b0 drivers/net/virtio_net.c:1557 __napi_poll+0xaf/0x440 net/core/dev.c:7023 napi_poll net/core/dev.c:7090 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:7177 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 common_interrupt+0x52/0xc0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:629 RIP: 0033:0x7f5e972bfd57 Code: 39 d1 73 14 0f 1f 80 00 00 00 00 48 8b 50 f8 48 83 e8 08 48 39 ca 77 f3 48 39 c3 73 3e 48 89 13 48 8b 50 f8 48 89 38 49 8b 0e <48> 8b 3e 48 83 c3 08 48 83 c6 08 eb bc 48 39 d1 72 9e 48 39 d0 73 RSP: 002b:00007fff8a413210 EFLAGS: 00000283 RAX: 00007f5e97108990 RBX: 00007f5e97108338 RCX: ffffffff81d3aa45 RDX: ffffffff81d3aa45 RSI: 00007f5e97108340 RDI: ffffffff81d3aa45 RBP: 00007f5e97107eb8 R08: 00007f5e97108d88 R09: 0000000093c2e8d9 R10: 0000000000000000 R11: 0000000000000000 R12: 00007f5e97107eb0 R13: 00007f5e97108338 R14: 00007f5e97107ea8 R15: 0000000000000019 </TASK> Allocated by task 13: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x90/0xc0 mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:259 [inline] slab_post_alloc_hook mm/slab.h:519 [inline] slab_alloc_node mm/slub.c:3234 [inline] slab_alloc mm/slub.c:3242 [inline] kmem_cache_alloc+0x202/0x3a0 mm/slub.c:3247 dst_alloc+0x146/0x1f0 net/core/dst.c:92 rt_dst_alloc+0x73/0x430 net/ipv4/route.c:1613 ip_route_input_slow+0x1817/0x3a20 net/ipv4/route.c:2340 ip_route_input_rcu net/ipv4/route.c:2470 [inline] ip_route_input_noref+0x116/0x2a0 net/ipv4/route.c:2415 ip_rcv_finish_core.constprop.0+0x288/0x1e80 net/ipv4/ip_input.c:354 ip_list_rcv_finish.constprop.0+0x1b2/0x6e0 net/ipv4/ip_input.c:583 ip_sublist_rcv net/ipv4/ip_input.c:609 [inline] ip_list_rcv+0x34e/0x490 net/ipv4/ip_input.c:644 __netif_receive_skb_list_ptype net/core/dev.c:5508 [inline] __netif_receive_skb_list_core+0x549/0x8e0 net/core/dev.c:5556 __netif_receive_skb_list net/core/dev.c:5608 [inline] netif_receive_skb_list_internal+0x75e/0xd80 net/core/dev.c:5699 gro_normal_list net/core/dev.c:5853 [inline] gro_normal_list net/core/dev.c:5849 [inline] napi_complete_done+0x1f1/0x880 net/core/dev.c:6590 virtqueue_napi_complete drivers/net/virtio_net.c:339 [inline] virtnet_poll+0xca2/0x11b0 drivers/net/virtio_net.c:1557 __napi_poll+0xaf/0x440 net/core/dev.c:7023 napi_poll net/core/dev.c:7090 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:7177 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 Freed by task 13: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:46 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free mm/kasan/common.c:328 [inline] __kasan_slab_free+0xff/0x130 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1749 slab_free mm/slub.c:3513 [inline] kmem_cache_free+0xbd/0x5d0 mm/slub.c:3530 dst_destroy+0x2d6/0x3f0 net/core/dst.c:127 rcu_do_batch kernel/rcu/tree.c:2506 [inline] rcu_core+0x7ab/0x1470 kernel/rcu/tree.c:2741 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 Last potentially related work creation: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 __kasan_record_aux_stack+0xf5/0x120 mm/kasan/generic.c:348 __call_rcu kernel/rcu/tree.c:2985 [inline] call_rcu+0xb1/0x740 kernel/rcu/tree.c:3065 dst_release net/core/dst.c:177 [inline] dst_release+0x79/0xe0 net/core/dst.c:167 tcp_v4_do_rcv+0x612/0x8d0 net/ipv4/tcp_ipv4.c:1712 sk_backlog_rcv include/net/sock.h:1030 [inline] __release_sock+0x134/0x3b0 net/core/sock.c:2768 release_sock+0x54/0x1b0 net/core/sock.c:3300 tcp_sendmsg+0x36/0x40 net/ipv4/tcp.c:1441 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 sock_write_iter+0x289/0x3c0 net/socket.c:1057 call_write_iter include/linux/fs.h:2162 [inline] new_sync_write+0x429/0x660 fs/read_write.c:503 vfs_write+0x7cd/0xae0 fs/read_write.c:590 ksys_write+0x1ee/0x250 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff88807f1cb700 which belongs to the cache ip_dst_cache of size 176 The buggy address is located 58 bytes inside of 176-byte region [ffff88807f1cb700, ffff88807f1cb7b0) The buggy address belongs to the page: page:ffffea0001fc72c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7f1cb flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 dead000000000100 dead000000000122 ffff8881413bb780 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 5, ts 108466983062, free_ts 108048976062 prep_new_page mm/page_alloc.c:2418 [inline] get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4149 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5369 alloc_pages+0x1a7/0x300 mm/mempolicy.c:2191 alloc_slab_page mm/slub.c:1793 [inline] allocate_slab mm/slub.c:1930 [inline] new_slab+0x32d/0x4a0 mm/slub.c:1993 ___slab_alloc+0x918/0xfe0 mm/slub.c:3022 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3109 slab_alloc_node mm/slub.c:3200 [inline] slab_alloc mm/slub.c:3242 [inline] kmem_cache_alloc+0x35c/0x3a0 mm/slub.c:3247 dst_alloc+0x146/0x1f0 net/core/dst.c:92 rt_dst_alloc+0x73/0x430 net/ipv4/route.c:1613 __mkroute_output net/ipv4/route.c:2564 [inline] ip_route_output_key_hash_rcu+0x921/0x2d00 net/ipv4/route.c:2791 ip_route_output_key_hash+0x18b/0x300 net/ipv4/route.c:2619 __ip_route_output_key include/net/route.h:126 [inline] ip_route_output_flow+0x23/0x150 net/ipv4/route.c:2850 ip_route_output_key include/net/route.h:142 [inline] geneve_get_v4_rt+0x3a6/0x830 drivers/net/geneve.c:809 geneve_xmit_skb drivers/net/geneve.c:899 [inline] geneve_xmit+0xc4a/0x3540 drivers/net/geneve.c:1082 __netdev_start_xmit include/linux/netdevice.h:4994 [inline] netdev_start_xmit include/linux/netdevice.h:5008 [inline] xmit_one net/core/dev.c:3590 [inline] dev_hard_start_xmit+0x1eb/0x920 net/core/dev.c:3606 __dev_queue_xmit+0x299a/0x3650 net/core/dev.c:4229 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1338 [inline] free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1389 free_unref_page_prepare mm/page_alloc.c:3309 [inline] free_unref_page+0x19/0x690 mm/page_alloc.c:3388 qlink_free mm/kasan/quarantine.c:146 [inline] qlist_free_all+0x5a/0xc0 mm/kasan/quarantine.c:165 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272 __kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:444 kasan_slab_alloc include/linux/kasan.h:259 [inline] slab_post_alloc_hook mm/slab.h:519 [inline] slab_alloc_node mm/slub.c:3234 [inline] kmem_cache_alloc_node+0x255/0x3f0 mm/slub.c:3270 __alloc_skb+0x215/0x340 net/core/skbuff.c:414 alloc_skb include/linux/skbuff.h:1126 [inline] alloc_skb_with_frags+0x93/0x620 net/core/skbuff.c:6078 sock_alloc_send_pskb+0x783/0x910 net/core/sock.c:2575 mld_newpack+0x1df/0x770 net/ipv6/mcast.c:1754 add_grhead+0x265/0x330 net/ipv6/mcast.c:1857 add_grec+0x1053/0x14e0 net/ipv6/mcast.c:1995 mld_send_initial_cr.part.0+0xf6/0x230 net/ipv6/mcast.c:2242 mld_send_initial_cr net/ipv6/mcast.c:1232 [inline] mld_dad_work+0x1d3/0x690 net/ipv6/mcast.c:2268 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445 Memory state around the buggy address: ffff88807f1cb600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88807f1cb680: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc >ffff88807f1cb700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88807f1cb780: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc ffff88807f1cb800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb Fixes: 41063e9dd119 ("ipv4: Early TCP socket demux.") Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20211220143330.680945-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> | 21 December 2021, 02:46:43 UTC |
6e0567b | Linus Torvalds | 21 December 2021, 01:26:42 UTC | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Pull rdma fixes from Jason Gunthorpe: "Last fixes before holidays. Nothing very exciting: - Work around a HW bug in HNS HIP08 - Recent memory leak regression in qib - Incorrect use of kfree() for vmalloc memory in hns" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: RDMA/hns: Replace kfree() with kvfree() IB/qib: Fix memory leak in qib_user_sdma_queue_pkts() RDMA/hns: Fix RNR retransmission issue for HIP08 | 21 December 2021, 01:26:42 UTC |
86085fe | Linus Torvalds | 20 December 2021, 18:23:19 UTC | Merge tag 'spi-fix-v5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fix from Mark Brown: "One small fix for a long standing issue with error handling on probe in the Armada driver" * tag 'spi-fix-v5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: change clk_disable_unprepare to clk_unprepare | 20 December 2021, 18:23:19 UTC |
3856c1b | Linus Torvalds | 20 December 2021, 18:13:30 UTC | Merge tag 'regulator-fix-v5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator fix from Mark Brown: "Binding fix for v5.16 This fixes problems validating DT bindings using op_mode which wasn't described as it should have been when converting to DT schema" * tag 'regulator-fix-v5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: dt-bindings: samsung,s5m8767: add missing op_mode to bucks | 20 December 2021, 18:13:30 UTC |
59b3f94 | Linus Torvalds | 20 December 2021, 15:42:21 UTC | Merge branch 'xsa' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Merge xen fixes from Juergen Gross: "Fixes for two issues related to Xen and malicious guests: - Guest can force the netback driver to hog large amounts of memory - Denial of Service in other guests due to event storms" * 'xsa' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/netback: don't queue unlimited number of packages xen/netback: fix rx queue stall detection xen/console: harden hvc_xen against event channel storms xen/netfront: harden netfront against event channel storms xen/blkfront: harden blkfront against event channel storms | 20 December 2021, 15:42:21 UTC |
484730e | Helge Deller | 08 December 2021, 10:06:52 UTC | parisc: Clear stale IIR value on instruction access rights trap When a trap 7 (Instruction access rights) occurs, this means the CPU couldn't execute an instruction due to missing execute permissions on the memory region. In this case it seems the CPU didn't even fetched the instruction from memory and thus did not store it in the cr19 (IIR) register before calling the trap handler. So, the trap handler will find some random old stale value in cr19. This patch simply overwrites the stale IIR value with a constant magic "bad food" value (0xbaadf00d), in the hope people don't start to try to understand the various random IIR values in trap 7 dumps. Noticed-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de> | 20 December 2021, 13:38:40 UTC |
ab1ef34 | Sean Christopherson | 07 December 2021, 19:30:06 UTC | KVM: selftests: Add test to verify TRIPLE_FAULT on invalid L2 guest state Add a selftest to attempt to enter L2 with invalid guests state by exiting to userspace via I/O from L2, and then using KVM_SET_SREGS to set invalid guest state (marking TR unusable is arbitrary chosen for its relative simplicity). This is a regression test for a bug introduced by commit c8607e4a086f ("KVM: x86: nVMX: don't fail nested VM entry on invalid guest state if !from_vmentry"), which incorrectly set vmx->fail=true when L2 had invalid guest state and ultimately triggered a WARN due to nested_vmx_vmexit() seeing vmx->fail==true while attempting to synthesize a nested VM-Exit. The is also a functional test to verify that KVM sythesizes TRIPLE_FAULT for L2, which is somewhat arbitrary behavior, instead of emulating L2. KVM should never emulate L2 due to invalid guest state, as it's architecturally impossible for L1 to run an L2 guest with invalid state as nested VM-Enter should always fail, i.e. L1 needs to do the emulation. Stuffing state via KVM ioctl() is a non-architctural, out-of-band case, hence the TRIPLE_FAULT being rather arbitrary. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20211207193006.120997-5-seanjc@google.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> | 20 December 2021, 13:06:55 UTC |
0ff2970 | Sean Christopherson | 07 December 2021, 19:30:05 UTC | KVM: VMX: Fix stale docs for kvm-intel.emulate_invalid_guest_state Update the documentation for kvm-intel's emulate_invalid_guest_state to rectify the description of KVM's default behavior, and to document that the behavior and thus parameter only applies to L1. Fixes: a27685c33acc ("KVM: VMX: Emulate invalid guest state by default") Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20211207193006.120997-4-seanjc@google.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> | 20 December 2021, 13:06:55 UTC |
cd0e615 | Sean Christopherson | 07 December 2021, 19:30:04 UTC | KVM: nVMX: Synthesize TRIPLE_FAULT for L2 if emulation is required Synthesize a triple fault if L2 guest state is invalid at the time of VM-Enter, which can happen if L1 modifies SMRAM or if userspace stuffs guest state via ioctls(), e.g. KVM_SET_SREGS. KVM should never emulate invalid guest state, since from L1's perspective, it's architecturally impossible for L2 to have invalid state while L2 is running in hardware. E.g. attempts to set CR0 or CR4 to unsupported values will either VM-Exit or #GP. Modifying vCPU state via RSM+SMRAM and ioctl() are the only paths that can trigger this scenario, as nested VM-Enter correctly rejects any attempt to enter L2 with invalid state. RSM is a straightforward case as (a) KVM follows AMD's SMRAM layout and behavior, and (b) Intel's SDM states that loading reserved CR0/CR4 bits via RSM results in shutdown, i.e. there is precedent for KVM's behavior. Following AMD's SMRAM layout is important as AMD's layout saves/restores the descriptor cache information, including CS.RPL and SS.RPL, and also defines all the fields relevant to invalid guest state as read-only, i.e. so long as the vCPU had valid state before the SMI, which is guaranteed for L2, RSM will generate valid state unless SMRAM was modified. Intel's layout saves/restores only the selector, which means that scenarios where the selector and cached RPL don't match, e.g. conforming code segments, would yield invalid guest state. Intel CPUs fudge around this issued by stuffing SS.RPL and CS.RPL on RSM. Per Intel's SDM on the "Default Treatment of RSM", paraphrasing for brevity: IF internal storage indicates that the [CPU was post-VMXON] THEN enter VMX operation (root or non-root); restore VMX-critical state as defined in Section 34.14.1; set to their fixed values any bits in CR0 and CR4 whose values must be fixed in VMX operation [unless coming from an unrestricted guest]; IF RFLAGS.VM = 0 AND (in VMX root operation OR the “unrestricted guest” VM-execution control is 0) THEN CS.RPL := SS.DPL; SS.RPL := SS.DPL; FI; restore current VMCS pointer; FI; Note that Intel CPUs also overwrite the fixed CR0/CR4 bits, whereas KVM will sythesize TRIPLE_FAULT in this scenario. KVM's behavior is allowed as both Intel and AMD define CR0/CR4 SMRAM fields as read-only, i.e. the only way for CR0 and/or CR4 to have illegal values is if they were modified by the L1 SMM handler, and Intel's SDM "SMRAM State Save Map" section states "modifying these registers will result in unpredictable behavior". KVM's ioctl() behavior is less straightforward. Because KVM allows ioctls() to be executed in any order, rejecting an ioctl() if it would result in invalid L2 guest state is not an option as KVM cannot know if a future ioctl() would resolve the invalid state, e.g. KVM_SET_SREGS, or drop the vCPU out of L2, e.g. KVM_SET_NESTED_STATE. Ideally, KVM would reject KVM_RUN if L2 contained invalid guest state, but that carries the risk of a false positive, e.g. if RSM loaded invalid guest state and KVM exited to userspace. Setting a flag/request to detect such a scenario is undesirable because (a) it's extremely unlikely to add value to KVM as a whole, and (b) KVM would need to consider ioctl() interactions with such a flag, e.g. if userspace migrated the vCPU while the flag were set. Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20211207193006.120997-3-seanjc@google.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> | 20 December 2021, 13:06:54 UTC |
a80dfc0 | Sean Christopherson | 07 December 2021, 19:30:03 UTC | KVM: VMX: Always clear vmx->fail on emulation_required Revert a relatively recent change that set vmx->fail if the vCPU is in L2 and emulation_required is true, as that behavior is completely bogus. Setting vmx->fail and synthesizing a VM-Exit is contradictory and wrong: (a) it's impossible to have both a VM-Fail and VM-Exit (b) vmcs.EXIT_REASON is not modified on VM-Fail (c) emulation_required refers to guest state and guest state checks are always VM-Exits, not VM-Fails. For KVM specifically, emulation_required is handled before nested exits in __vmx_handle_exit(), thus setting vmx->fail has no immediate effect, i.e. KVM calls into handle_invalid_guest_state() and vmx->fail is ignored. Setting vmx->fail can ultimately result in a WARN in nested_vmx_vmexit() firing when tearing down the VM as KVM never expects vmx->fail to be set when L2 is active, KVM always reflects those errors into L1. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 21158 at arch/x86/kvm/vmx/nested.c:4548 nested_vmx_vmexit+0x16bd/0x17e0 arch/x86/kvm/vmx/nested.c:4547 Modules linked in: CPU: 0 PID: 21158 Comm: syz-executor.1 Not tainted 5.16.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:nested_vmx_vmexit+0x16bd/0x17e0 arch/x86/kvm/vmx/nested.c:4547 Code: <0f> 0b e9 2e f8 ff ff e8 57 b3 5d 00 0f 0b e9 00 f1 ff ff 89 e9 80 Call Trace: vmx_leave_nested arch/x86/kvm/vmx/nested.c:6220 [inline] nested_vmx_free_vcpu+0x83/0xc0 arch/x86/kvm/vmx/nested.c:330 vmx_free_vcpu+0x11f/0x2a0 arch/x86/kvm/vmx/vmx.c:6799 kvm_arch_vcpu_destroy+0x6b/0x240 arch/x86/kvm/x86.c:10989 kvm_vcpu_destroy+0x29/0x90 arch/x86/kvm/../../../virt/kvm/kvm_main.c:441 kvm_free_vcpus arch/x86/kvm/x86.c:11426 [inline] kvm_arch_destroy_vm+0x3ef/0x6b0 arch/x86/kvm/x86.c:11545 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1189 [inline] kvm_put_kvm+0x751/0xe40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1220 kvm_vcpu_release+0x53/0x60 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3489 __fput+0x3fc/0x870 fs/file_table.c:280 task_work_run+0x146/0x1c0 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0x705/0x24f0 kernel/exit.c:832 do_group_exit+0x168/0x2d0 kernel/exit.c:929 get_signal+0x1740/0x2120 kernel/signal.c:2852 arch_do_signal_or_restart+0x9c/0x730 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x191/0x220 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300 do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae Fixes: c8607e4a086f ("KVM: x86: nVMX: don't fail nested VM entry on invalid guest state if !from_vmentry") Reported-by: syzbot+f1d2136db9c80d4733e8@syzkaller.appspotmail.com Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20211207193006.120997-2-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> | 20 December 2021, 13:06:54 UTC |
577e022 | Andrew Jones | 14 December 2021, 15:18:42 UTC | selftests: KVM: Fix non-x86 compiling Attempting to compile on a non-x86 architecture fails with include/kvm_util.h: In function ‘vm_compute_max_gfn’: include/kvm_util.h:79:21: error: dereferencing pointer to incomplete type ‘struct kvm_vm’ return ((1ULL << vm->pa_bits) >> vm->page_shift) - 1; ^~ This is because the declaration of struct kvm_vm is in lib/kvm_util_internal.h as an effort to make it private to the test lib code. We can still provide arch specific functions, though, by making the generic function symbols weak. Do that to fix the compile error. Fixes: c8cc43c1eae2 ("selftests: KVM: avoid failures due to reserved HyperTransport region") Cc: stable@vger.kernel.org Signed-off-by: Andrew Jones <drjones@redhat.com> Message-Id: <20211214151842.848314-1-drjones@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> | 20 December 2021, 13:06:54 UTC |
c506355 | Marc Orr | 09 December 2021, 15:52:57 UTC | KVM: x86: Always set kvm_run->if_flag The kvm_run struct's if_flag is a part of the userspace/kernel API. The SEV-ES patches failed to set this flag because it's no longer needed by QEMU (according to the comment in the source code). However, other hypervisors may make use of this flag. Therefore, set the flag for guests with encrypted registers (i.e., with guest_state_protected set). Fixes: f1c6366e3043 ("KVM: SVM: Add required changes to support intercepts under SEV-ES") Signed-off-by: Marc Orr <marcorr@google.com> Message-Id: <20211209155257.128747-1-marcorr@google.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> | 20 December 2021, 13:06:53 UTC |
3a0f64d | Sean Christopherson | 14 December 2021, 03:35:28 UTC | KVM: x86/mmu: Don't advance iterator after restart due to yielding After dropping mmu_lock in the TDP MMU, restart the iterator during tdp_iter_next() and do not advance the iterator. Advancing the iterator results in skipping the top-level SPTE and all its children, which is fatal if any of the skipped SPTEs were not visited before yielding. When zapping all SPTEs, i.e. when min_level == root_level, restarting the iter and then invoking tdp_iter_next() is always fatal if the current gfn has as a valid SPTE, as advancing the iterator results in try_step_side() skipping the current gfn, which wasn't visited before yielding. Sprinkle WARNs on iter->yielded being true in various helpers that are often used in conjunction with yielding, and tag the helper with __must_check to reduce the probabily of improper usage. Failing to zap a top-level SPTE manifests in one of two ways. If a valid SPTE is skipped by both kvm_tdp_mmu_zap_all() and kvm_tdp_mmu_put_root(), the shadow page will be leaked and KVM will WARN accordingly. WARNING: CPU: 1 PID: 3509 at arch/x86/kvm/mmu/tdp_mmu.c:46 [kvm] RIP: 0010:kvm_mmu_uninit_tdp_mmu+0x3e/0x50 [kvm] Call Trace: <TASK> kvm_arch_destroy_vm+0x130/0x1b0 [kvm] kvm_destroy_vm+0x162/0x2a0 [kvm] kvm_vcpu_release+0x34/0x60 [kvm] __fput+0x82/0x240 task_work_run+0x5c/0x90 do_exit+0x364/0xa10 ? futex_unqueue+0x38/0x60 do_group_exit+0x33/0xa0 get_signal+0x155/0x850 arch_do_signal_or_restart+0xed/0x750 exit_to_user_mode_prepare+0xc5/0x120 syscall_exit_to_user_mode+0x1d/0x40 do_syscall_64+0x48/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae If kvm_tdp_mmu_zap_all() skips a gfn/SPTE but that SPTE is then zapped by kvm_tdp_mmu_put_root(), KVM triggers a use-after-free in the form of marking a struct page as dirty/accessed after it has been put back on the free list. This directly triggers a WARN due to encountering a page with page_count() == 0, but it can also lead to data corruption and additional errors in the kernel. WARNING: CPU: 7 PID: 1995658 at arch/x86/kvm/../../../virt/kvm/kvm_main.c:171 RIP: 0010:kvm_is_zone_device_pfn.part.0+0x9e/0xd0 [kvm] Call Trace: <TASK> kvm_set_pfn_dirty+0x120/0x1d0 [kvm] __handle_changed_spte+0x92e/0xca0 [kvm] __handle_changed_spte+0x63c/0xca0 [kvm] __handle_changed_spte+0x63c/0xca0 [kvm] __handle_changed_spte+0x63c/0xca0 [kvm] zap_gfn_range+0x549/0x620 [kvm] kvm_tdp_mmu_put_root+0x1b6/0x270 [kvm] mmu_free_root_page+0x219/0x2c0 [kvm] kvm_mmu_free_roots+0x1b4/0x4e0 [kvm] kvm_mmu_unload+0x1c/0xa0 [kvm] kvm_arch_destroy_vm+0x1f2/0x5c0 [kvm] kvm_put_kvm+0x3b1/0x8b0 [kvm] kvm_vcpu_release+0x4e/0x70 [kvm] __fput+0x1f7/0x8c0 task_work_run+0xf8/0x1a0 do_exit+0x97b/0x2230 do_group_exit+0xda/0x2a0 get_signal+0x3be/0x1e50 arch_do_signal_or_restart+0x244/0x17f0 exit_to_user_mode_prepare+0xcb/0x120 syscall_exit_to_user_mode+0x1d/0x40 do_syscall_64+0x4d/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae Note, the underlying bug existed even before commit 1af4a96025b3 ("KVM: x86/mmu: Yield in TDU MMU iter even if no SPTES changed") moved calls to tdp_mmu_iter_cond_resched() to the beginning of loops, as KVM could still incorrectly advance past a top-level entry when yielding on a lower-level entry. But with respect to leaking shadow pages, the bug was introduced by yielding before processing the current gfn. Alternatively, tdp_mmu_iter_cond_resched() could simply fall through, or callers could jump to their "retry" label. The downside of that approach is that tdp_mmu_iter_cond_resched() _must_ be called before anything else in the loop, and there's no easy way to enfornce that requirement. Ideally, KVM would handling the cond_resched() fully within the iterator macro (the code is actually quite clean) and avoid this entire class of bugs, but that is extremely difficult do while also supporting yielding after tdp_mmu_set_spte_atomic() fails. Yielding after failing to set a SPTE is very desirable as the "owner" of the REMOVED_SPTE isn't strictly bounded, e.g. if it's zapping a high-level shadow page, the REMOVED_SPTE may block operations on the SPTE for a significant amount of time. Fixes: faaf05b00aec ("kvm: x86/mmu: Support zapping SPTEs in the TDP MMU") Fixes: 1af4a96025b3 ("KVM: x86/mmu: Yield in TDU MMU iter even if no SPTES changed") Reported-by: Ignat Korchagin <ignat@cloudflare.com> Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20211214033528.123268-1-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> | 20 December 2021, 13:06:53 UTC |
7807bf2 | Matthew Brost | 14 December 2021, 17:04:55 UTC | drm/i915/guc: Only assign guc_id.id when stealing guc_id Previously assigned whole guc_id structure (list, spin lock) which is incorrect, only assign the guc_id.id. Fixes: 0f7976506de61 ("drm/i915/guc: Rework and simplify locking") Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: John Harrison <John.C.Harrison@Intel.com> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211214170500.28569-3-matthew.brost@intel.com (cherry picked from commit 939d8e9c87e704fd5437e2c8b80929591fe540eb) Signed-off-by: Jani Nikula <jani.nikula@intel.com> | 20 December 2021, 11:59:35 UTC |
64d16ac | Matthew Brost | 14 December 2021, 17:04:54 UTC | drm/i915/guc: Use correct context lock when callig clr_context_registered s/ce/cn/ when grabbing guc_state.lock before calling clr_context_registered. Fixes: 0f7976506de61 ("drm/i915/guc: Rework and simplify locking") Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211214170500.28569-2-matthew.brost@intel.com (cherry picked from commit b25db8c782ad7ae80d4cea2a09c222f4f8980bb9) Signed-off-by: Jani Nikula <jani.nikula@intel.com> | 20 December 2021, 11:59:31 UTC |
75a2f31 | Rémi Denis-Courmont | 19 December 2021, 17:03:39 UTC | phonet/pep: refuse to enable an unbound pipe This ioctl() implicitly assumed that the socket was already bound to a valid local socket name, i.e. Phonet object. If the socket was not bound, two separate problems would occur: 1) We'd send an pipe enablement request with an invalid source object. 2) Later socket calls could BUG on the socket unexpectedly being connected yet not bound to a valid object. Reported-by: syzbot+2dc91e7fc3dea88b1e8a@syzkaller.appspotmail.com Signed-off-by: Rémi Denis-Courmont <remi@remlab.net> Signed-off-by: David S. Miller <davem@davemloft.net> | 20 December 2021, 11:49:51 UTC |
662f11d | Sean Anderson | 17 December 2021, 17:42:31 UTC | docs: networking: dpaa2: Fix DPNI header The DPNI object should get its own header, like the rest of the objects. Fixes: 60b91319a349 ("staging: fsl-mc: Convert documentation to rst format") Signed-off-by: Sean Anderson <sean.anderson@seco.com> Signed-off-by: David S. Miller <davem@davemloft.net> | 20 December 2021, 11:46:42 UTC |
7ad8b2f | Arnd Bergmann | 20 December 2021, 11:37:20 UTC | Merge tag 'imx-fixes-5.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes i.MX fixes for 5.16, round 3: - Fix imx6qdl-wandboard Ethernet support by adding 'qca,clk-out-frequency' property. - Fix scl-gpios property typo in LX2160A device tree. * tag 'imx-fixes-5.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: arm64: dts: lx2160a: fix scl-gpios property name ARM: dts: imx6qdl-wandboard: Fix Ethernet support soc: imx: Register SoC device only on i.MX boards soc: imx: imx8m-blk-ctrl: Fix imx8mm mipi reset ARM: dts: imx6ull-pinfunc: Fix CSI_DATA07__ESAI_TX0 pad name arm64: dts: imx8mq: remove interconnect property from lcdif arm64: dts: ten64: remove redundant interrupt declaration for gpio-keys arm64: dts: lx2160abluebox3: update RGMII delays for sja1105 switch ARM: dts: ls1021a-tsn: update RGMII delays for sja1105 switch ARM: dts: imx6qp-prtwd3: update RGMII delays for sja1105 switch Link: https://lore.kernel.org/r/20211218052003.GA25102@dragon Signed-off-by: Arnd Bergmann <arnd@arndb.de> | 20 December 2021, 11:37:22 UTC |