https://github.com/torvalds/linux
Revision 3d87debb8ed2649608ff432699e7c961c0c6f03b authored by Alexandra Winter on 15 March 2023, 13:14:35 UTC, committed by Jakub Kicinski on 17 March 2023, 00:34:40 UTC
iucv_irq_data needs to be 4 bytes larger. These bytes are not used by the iucv module, but written by the z/VM hypervisor in case a CPU is deconfigured. Reported as: BUG dma-kmalloc-64 (Not tainted): kmalloc Redzone overwritten ----------------------------------------------------------------------------- 0x0000000000400564-0x0000000000400567 @offset=1380. First byte 0x80 instead of 0xcc Allocated in iucv_cpu_prepare+0x44/0xd0 age=167839 cpu=2 pid=1 __kmem_cache_alloc_node+0x166/0x450 kmalloc_node_trace+0x3a/0x70 iucv_cpu_prepare+0x44/0xd0 cpuhp_invoke_callback+0x156/0x2f0 cpuhp_issue_call+0xf0/0x298 __cpuhp_setup_state_cpuslocked+0x136/0x338 __cpuhp_setup_state+0xf4/0x288 iucv_init+0xf4/0x280 do_one_initcall+0x78/0x390 do_initcalls+0x11a/0x140 kernel_init_freeable+0x25e/0x2a0 kernel_init+0x2e/0x170 __ret_from_fork+0x3c/0x58 ret_from_fork+0xa/0x40 Freed in iucv_init+0x92/0x280 age=167839 cpu=2 pid=1 __kmem_cache_free+0x308/0x358 iucv_init+0x92/0x280 do_one_initcall+0x78/0x390 do_initcalls+0x11a/0x140 kernel_init_freeable+0x25e/0x2a0 kernel_init+0x2e/0x170 __ret_from_fork+0x3c/0x58 ret_from_fork+0xa/0x40 Slab 0x0000037200010000 objects=32 used=30 fp=0x0000000000400640 flags=0x1ffff00000010200(slab|head|node=0|zone=0| Object 0x0000000000400540 @offset=1344 fp=0x0000000000000000 Redzone 0000000000400500: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400510: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400520: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400530: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Object 0000000000400540: 00 01 00 03 00 00 00 00 00 00 00 00 00 00 00 00 ................ Object 0000000000400550: f3 86 81 f2 f4 82 f8 82 f0 f0 f0 f0 f0 f0 f0 f2 ................ Object 0000000000400560: 00 00 00 00 80 00 00 00 cc cc cc cc cc cc cc cc ................ Object 0000000000400570: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400580: cc cc cc cc cc cc cc cc ........ Padding 00000000004005d4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ Padding 00000000004005e4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ Padding 00000000004005f4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ CPU: 6 PID: 121030 Comm: 116-pai-crypto. Not tainted 6.3.0-20230221.rc0.git4.99b8246b2d71.300.fc37.s390x+debug #1 Hardware name: IBM 3931 A01 704 (z/VM 7.3.0) Call Trace: [<000000032aa034ec>] dump_stack_lvl+0xac/0x100 [<0000000329f5a6cc>] check_bytes_and_report+0x104/0x140 [<0000000329f5aa78>] check_object+0x370/0x3c0 [<0000000329f5ede6>] free_debug_processing+0x15e/0x348 [<0000000329f5f06a>] free_to_partial_list+0x9a/0x2f0 [<0000000329f5f4a4>] __slab_free+0x1e4/0x3a8 [<0000000329f61768>] __kmem_cache_free+0x308/0x358 [<000000032a91465c>] iucv_cpu_dead+0x6c/0x88 [<0000000329c2fc66>] cpuhp_invoke_callback+0x156/0x2f0 [<000000032aa062da>] _cpu_down.constprop.0+0x22a/0x5e0 [<0000000329c3243e>] cpu_device_down+0x4e/0x78 [<000000032a61dee0>] device_offline+0xc8/0x118 [<000000032a61e048>] online_store+0x60/0xe0 [<000000032a08b6b0>] kernfs_fop_write_iter+0x150/0x1e8 [<0000000329fab65c>] vfs_write+0x174/0x360 [<0000000329fab9fc>] ksys_write+0x74/0x100 [<000000032aa03a5a>] __do_syscall+0x1da/0x208 [<000000032aa177b2>] system_call+0x82/0xb0 INFO: lockdep is turned off. FIX dma-kmalloc-64: Restoring kmalloc Redzone 0x0000000000400564-0x0000000000400567=0xcc FIX dma-kmalloc-64: Object at 0x0000000000400540 not freed Fixes: 2356f4cb1911 ("[S390]: Rewrite of the IUCV base code, part 2") Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Link: https://lore.kernel.org/r/20230315131435.4113889-1-wintera@linux.ibm.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1 parent 37d0103
Tip revision: 3d87debb8ed2649608ff432699e7c961c0c6f03b authored by Alexandra Winter on 15 March 2023, 13:14:35 UTC
net/iucv: Fix size of interrupt data
net/iucv: Fix size of interrupt data
Tip revision: 3d87deb
File | Mode | Size |
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842 | ||
crypto | ||
dim | ||
fonts | ||
kunit | ||
livepatch | ||
lz4 | ||
lzo | ||
math | ||
mpi | ||
pldmfw | ||
raid6 | ||
reed_solomon | ||
test_fortify | ||
vdso | ||
xz | ||
zlib_deflate | ||
zlib_dfltcc | ||
zlib_inflate | ||
zstd | ||
.gitignore | -rw-r--r-- | 174 bytes |
Kconfig | -rw-r--r-- | 17.1 KB |
Kconfig.debug | -rw-r--r-- | 93.7 KB |
Kconfig.kasan | -rw-r--r-- | 6.9 KB |
Kconfig.kcsan | -rw-r--r-- | 10.0 KB |
Kconfig.kfence | -rw-r--r-- | 3.6 KB |
Kconfig.kgdb | -rw-r--r-- | 5.6 KB |
Kconfig.kmsan | -rw-r--r-- | 2.3 KB |
Kconfig.ubsan | -rw-r--r-- | 5.4 KB |
Makefile | -rw-r--r-- | 14.6 KB |
argv_split.c | -rw-r--r-- | 2.1 KB |
ashldi3.c | -rw-r--r-- | 541 bytes |
ashrdi3.c | -rw-r--r-- | 565 bytes |
asn1_decoder.c | -rw-r--r-- | 13.2 KB |
asn1_encoder.c | -rw-r--r-- | 10.3 KB |
assoc_array.c | -rw-r--r-- | 51.9 KB |
atomic64.c | -rw-r--r-- | 4.5 KB |
atomic64_test.c | -rw-r--r-- | 6.4 KB |
audit.c | -rw-r--r-- | 1.9 KB |
base64.c | -rw-r--r-- | 2.4 KB |
bcd.c | -rw-r--r-- | 297 bytes |
bch.c | -rw-r--r-- | 38.3 KB |
bitfield_kunit.c | -rw-r--r-- | 4.4 KB |
bitmap.c | -rw-r--r-- | 46.3 KB |
bitrev.c | -rw-r--r-- | 1.9 KB |
bootconfig-data.S | -rw-r--r-- | 275 bytes |
bootconfig.c | -rw-r--r-- | 21.5 KB |
bsearch.c | -rw-r--r-- | 1.2 KB |
btree.c | -rw-r--r-- | 19.2 KB |
bucket_locks.c | -rw-r--r-- | 1.4 KB |
bug.c | -rw-r--r-- | 6.1 KB |
build_OID_registry | -rwxr-xr-x | 4.5 KB |
buildid.c | -rw-r--r-- | 5.0 KB |
bust_spinlocks.c | -rw-r--r-- | 632 bytes |
check_signature.c | -rw-r--r-- | 635 bytes |
checksum.c | -rw-r--r-- | 4.1 KB |
clz_ctz.c | -rw-r--r-- | 1.2 KB |
clz_tab.c | -rw-r--r-- | 891 bytes |
cmdline.c | -rw-r--r-- | 5.8 KB |
cmdline_kunit.c | -rw-r--r-- | 4.2 KB |
cmpdi2.c | -rw-r--r-- | 501 bytes |
compat_audit.c | -rw-r--r-- | 1002 bytes |
cpu_rmap.c | -rw-r--r-- | 7.6 KB |
cpumask.c | -rw-r--r-- | 5.3 KB |
cpumask_kunit.c | -rw-r--r-- | 4.9 KB |
crc-ccitt.c | -rw-r--r-- | 5.6 KB |
crc-itu-t.c | -rw-r--r-- | 2.7 KB |
crc-t10dif.c | -rw-r--r-- | 3.2 KB |
crc16.c | -rw-r--r-- | 2.7 KB |
crc32.c | -rw-r--r-- | 9.3 KB |
crc32defs.h | -rw-r--r-- | 1.6 KB |
crc32test.c | -rw-r--r-- | 37.4 KB |
crc4.c | -rw-r--r-- | 1003 bytes |
crc64-rocksoft.c | -rw-r--r-- | 3.2 KB |
crc64.c | -rw-r--r-- | 2.6 KB |
crc7.c | -rw-r--r-- | 2.5 KB |
crc8.c | -rw-r--r-- | 2.4 KB |
ctype.c | -rw-r--r-- | 1.4 KB |
debug_info.c | -rw-r--r-- | 782 bytes |
debug_locks.c | -rw-r--r-- | 1.2 KB |
debugobjects.c | -rw-r--r-- | 35.6 KB |
dec_and_lock.c | -rw-r--r-- | 2.0 KB |
decompress.c | -rw-r--r-- | 1.8 KB |
decompress_bunzip2.c | -rw-r--r-- | 23.5 KB |
decompress_inflate.c | -rw-r--r-- | 4.8 KB |
decompress_unlz4.c | -rw-r--r-- | 4.2 KB |
decompress_unlzma.c | -rw-r--r-- | 15.8 KB |
decompress_unlzo.c | -rw-r--r-- | 6.4 KB |
decompress_unxz.c | -rw-r--r-- | 10.9 KB |
decompress_unzstd.c | -rw-r--r-- | 10.2 KB |
devmem_is_allowed.c | -rw-r--r-- | 683 bytes |
devres.c | -rw-r--r-- | 14.6 KB |
dhry.h | -rw-r--r-- | 14.3 KB |
dhry_1.c | -rw-r--r-- | 7.8 KB |
dhry_2.c | -rw-r--r-- | 4.4 KB |
dhry_run.c | -rw-r--r-- | 1.7 KB |
digsig.c | -rw-r--r-- | 5.5 KB |
dump_stack.c | -rw-r--r-- | 3.0 KB |
dynamic_debug.c | -rw-r--r-- | 36.8 KB |
dynamic_queue_limits.c | -rw-r--r-- | 4.3 KB |
earlycpio.c | -rw-r--r-- | 3.6 KB |
errname.c | -rw-r--r-- | 3.9 KB |
error-inject.c | -rw-r--r-- | 5.3 KB |
errseq.c | -rw-r--r-- | 6.6 KB |
extable.c | -rw-r--r-- | 2.9 KB |
fault-inject-usercopy.c | -rw-r--r-- | 823 bytes |
fault-inject.c | -rw-r--r-- | 6.2 KB |
fdt.c | -rw-r--r-- | 69 bytes |
fdt_addresses.c | -rw-r--r-- | 79 bytes |
fdt_empty_tree.c | -rw-r--r-- | 80 bytes |
fdt_ro.c | -rw-r--r-- | 72 bytes |
fdt_rw.c | -rw-r--r-- | 72 bytes |
fdt_strerror.c | -rw-r--r-- | 78 bytes |
fdt_sw.c | -rw-r--r-- | 72 bytes |
fdt_wip.c | -rw-r--r-- | 73 bytes |
find_bit.c | -rw-r--r-- | 6.9 KB |
find_bit_benchmark.c | -rw-r--r-- | 4.9 KB |
flex_proportions.c | -rw-r--r-- | 7.1 KB |
fortify_kunit.c | -rw-r--r-- | 11.1 KB |
gen_crc32table.c | -rw-r--r-- | 3.3 KB |
gen_crc64table.c | -rw-r--r-- | 2.1 KB |
genalloc.c | -rw-r--r-- | 26.4 KB |
generic-radix-tree.c | -rw-r--r-- | 5.3 KB |
glob.c | -rw-r--r-- | 3.5 KB |
globtest.c | -rw-r--r-- | 4.2 KB |
group_cpus.c | -rw-r--r-- | 10.5 KB |
hashtable_test.c | -rw-r--r-- | 8.0 KB |
hexdump.c | -rw-r--r-- | 8.5 KB |
hweight.c | -rw-r--r-- | 1.9 KB |
idr.c | -rw-r--r-- | 17.5 KB |
inflate.c | -rw-r--r-- | 38.7 KB |
interval_tree.c | -rw-r--r-- | 4.2 KB |
interval_tree_test.c | -rw-r--r-- | 3.4 KB |
iomap.c | -rw-r--r-- | 11.0 KB |
iomap_copy.c | -rw-r--r-- | 2.2 KB |
iommu-helper.c | -rw-r--r-- | 755 bytes |
iov_iter.c | -rw-r--r-- | 54.3 KB |
irq_poll.c | -rw-r--r-- | 5.6 KB |
irq_regs.c | -rw-r--r-- | 394 bytes |
is_signed_type_kunit.c | -rw-r--r-- | 1.5 KB |
is_single_threaded.c | -rw-r--r-- | 1.2 KB |
kasprintf.c | -rw-r--r-- | 1.4 KB |
kfifo.c | -rw-r--r-- | 12.1 KB |
klist.c | -rw-r--r-- | 10.4 KB |
kobject.c | -rw-r--r-- | 27.8 KB |
kobject_uevent.c | -rw-r--r-- | 18.9 KB |
kstrtox.c | -rw-r--r-- | 10.8 KB |
kstrtox.h | -rw-r--r-- | 411 bytes |
libcrc32c.c | -rw-r--r-- | 2.0 KB |
linear_ranges.c | -rw-r--r-- | 8.1 KB |
list-test.c | -rw-r--r-- | 28.0 KB |
list_debug.c | -rw-r--r-- | 2.2 KB |
list_sort.c | -rw-r--r-- | 8.2 KB |
llist.c | -rw-r--r-- | 2.5 KB |
locking-selftest-hardirq.h | -rw-r--r-- | 246 bytes |
locking-selftest-mutex.h | -rw-r--r-- | 159 bytes |
locking-selftest-rlock-hardirq.h | -rw-r--r-- | 74 bytes |
locking-selftest-rlock-softirq.h | -rw-r--r-- | 74 bytes |
locking-selftest-rlock.h | -rw-r--r-- | 197 bytes |
locking-selftest-rsem.h | -rw-r--r-- | 202 bytes |
locking-selftest-rtmutex.h | -rw-r--r-- | 162 bytes |
locking-selftest-softirq.h | -rw-r--r-- | 246 bytes |
locking-selftest-spin-hardirq.h | -rw-r--r-- | 73 bytes |
locking-selftest-spin-softirq.h | -rw-r--r-- | 73 bytes |
locking-selftest-spin.h | -rw-r--r-- | 157 bytes |
locking-selftest-wlock-hardirq.h | -rw-r--r-- | 74 bytes |
locking-selftest-wlock-softirq.h | -rw-r--r-- | 74 bytes |
locking-selftest-wlock.h | -rw-r--r-- | 197 bytes |
locking-selftest-wsem.h | -rw-r--r-- | 202 bytes |
locking-selftest.c | -rw-r--r-- | 65.6 KB |
lockref.c | -rw-r--r-- | 3.9 KB |
logic_iomem.c | -rw-r--r-- | 7.2 KB |
logic_pio.c | -rw-r--r-- | 8.5 KB |
lru_cache.c | -rw-r--r-- | 17.5 KB |
lshrdi3.c | -rw-r--r-- | 559 bytes |
maple_tree.c | -rw-r--r-- | 177.4 KB |
memcat_p.c | -rw-r--r-- | 753 bytes |
memcpy_kunit.c | -rw-r--r-- | 16.9 KB |
memory-notifier-error-inject.c | -rw-r--r-- | 1.1 KB |
memregion.c | -rw-r--r-- | 429 bytes |
memweight.c | -rw-r--r-- | 1.0 KB |
muldi3.c | -rw-r--r-- | 1.7 KB |
net_utils.c | -rw-r--r-- | 674 bytes |
netdev-notifier-error-inject.c | -rw-r--r-- | 1.5 KB |
nlattr.c | -rw-r--r-- | 27.2 KB |
nmi_backtrace.c | -rw-r--r-- | 3.4 KB |
notifier-error-inject.c | -rw-r--r-- | 2.5 KB |
notifier-error-inject.h | -rw-r--r-- | 653 bytes |
objagg.c | -rw-r--r-- | 28.2 KB |
of-reconfig-notifier-error-inject.c | -rw-r--r-- | 1.3 KB |
oid_registry.c | -rw-r--r-- | 4.4 KB |
once.c | -rw-r--r-- | 2.2 KB |
overflow_kunit.c | -rw-r--r-- | 43.9 KB |
packing.c | -rw-r--r-- | 6.3 KB |
parman.c | -rw-r--r-- | 10.6 KB |
parser.c | -rw-r--r-- | 9.1 KB |
pci_iomap.c | -rw-r--r-- | 5.7 KB |
percpu-refcount.c | -rw-r--r-- | 15.3 KB |
percpu_counter.c | -rw-r--r-- | 7.2 KB |
percpu_test.c | -rw-r--r-- | 3.2 KB |
plist.c | -rw-r--r-- | 5.9 KB |
pm-notifier-error-inject.c | -rw-r--r-- | 1.2 KB |
polynomial.c | -rw-r--r-- | 3.6 KB |
radix-tree.c | -rw-r--r-- | 43.1 KB |
random32.c | -rw-r--r-- | 9.1 KB |
ratelimit.c | -rw-r--r-- | 1.8 KB |
rbtree.c | -rw-r--r-- | 17.1 KB |
rbtree_test.c | -rw-r--r-- | 9.4 KB |
ref_tracker.c | -rw-r--r-- | 4.0 KB |
refcount.c | -rw-r--r-- | 4.8 KB |
rhashtable.c | -rw-r--r-- | 29.6 KB |
sbitmap.c | -rw-r--r-- | 18.3 KB |
scatterlist.c | -rw-r--r-- | 28.3 KB |
seq_buf.c | -rw-r--r-- | 10.0 KB |
sg_pool.c | -rw-r--r-- | 4.0 KB |
sg_split.c | -rw-r--r-- | 5.0 KB |
show_mem.c | -rw-r--r-- | 1.1 KB |
siphash.c | -rw-r--r-- | 11.6 KB |
siphash_kunit.c | -rw-r--r-- | 7.2 KB |
slub_kunit.c | -rw-r--r-- | 4.3 KB |
smp_processor_id.c | -rw-r--r-- | 1.4 KB |
sort.c | -rw-r--r-- | 8.9 KB |
stackdepot.c | -rw-r--r-- | 15.2 KB |
stackinit_kunit.c | -rw-r--r-- | 13.9 KB |
stmp_device.c | -rw-r--r-- | 1.9 KB |
string.c | -rw-r--r-- | 18.2 KB |
string_helpers.c | -rw-r--r-- | 24.0 KB |
strncpy_from_user.c | -rw-r--r-- | 3.9 KB |
strnlen_user.c | -rw-r--r-- | 3.4 KB |
strscpy_kunit.c | -rw-r--r-- | 4.5 KB |
syscall.c | -rw-r--r-- | 2.7 KB |
test-kstrtox.c | -rw-r--r-- | 17.3 KB |
test-string_helpers.c | -rw-r--r-- | 14.9 KB |
test_bitmap.c | -rw-r--r-- | 37.5 KB |
test_bitops.c | -rw-r--r-- | 2.5 KB |
test_bits.c | -rw-r--r-- | 1.8 KB |
test_blackhole_dev.c | -rw-r--r-- | 2.5 KB |
test_bpf.c | -rw-r--r-- | 356.2 KB |
test_debug_virtual.c | -rw-r--r-- | 981 bytes |
test_dynamic_debug.c | -rw-r--r-- | 3.7 KB |
test_firmware.c | -rw-r--r-- | 36.6 KB |
test_fprobe.c | -rw-r--r-- | 4.2 KB |
test_fpu.c | -rw-r--r-- | 2.0 KB |
test_free_pages.c | -rw-r--r-- | 1003 bytes |
test_hash.c | -rw-r--r-- | 6.5 KB |
test_hexdump.c | -rw-r--r-- | 6.3 KB |
test_hmm.c | -rw-r--r-- | 38.0 KB |
test_hmm_uapi.h | -rw-r--r-- | 2.9 KB |
test_ida.c | -rw-r--r-- | 4.3 KB |
test_kmod.c | -rw-r--r-- | 29.4 KB |
test_kprobes.c | -rw-r--r-- | 10.1 KB |
test_linear_ranges.c | -rw-r--r-- | 7.4 KB |
test_list_sort.c | -rw-r--r-- | 3.3 KB |
test_lockup.c | -rw-r--r-- | 16.5 KB |
test_maple_tree.c | -rw-r--r-- | 76.3 KB |
test_memcat_p.c | -rw-r--r-- | 2.2 KB |
test_meminit.c | -rw-r--r-- | 10.2 KB |
test_min_heap.c | -rw-r--r-- | 4.3 KB |
test_module.c | -rw-r--r-- | 794 bytes |
test_objagg.c | -rw-r--r-- | 24.6 KB |
test_parman.c | -rw-r--r-- | 11.2 KB |
test_printf.c | -rw-r--r-- | 18.8 KB |
test_ref_tracker.c | -rw-r--r-- | 3.1 KB |
test_rhashtable.c | -rw-r--r-- | 19.8 KB |
test_scanf.c | -rw-r--r-- | 28.9 KB |
test_sort.c | -rw-r--r-- | 907 bytes |
test_static_key_base.c | -rw-r--r-- | 1.6 KB |
test_static_keys.c | -rw-r--r-- | 5.6 KB |
test_string.c | -rw-r--r-- | 4.6 KB |
test_sysctl.c | -rw-r--r-- | 4.1 KB |
test_ubsan.c | -rw-r--r-- | 2.4 KB |
test_user_copy.c | -rw-r--r-- | 9.1 KB |
test_uuid.c | -rw-r--r-- | 3.4 KB |
test_vmalloc.c | -rw-r--r-- | 11.0 KB |
test_xarray.c | -rw-r--r-- | 47.2 KB |
textsearch.c | -rw-r--r-- | 9.3 KB |
timerqueue.c | -rw-r--r-- | 2.3 KB |
trace_readwrite.c | -rw-r--r-- | 1.5 KB |
ts_bm.c | -rw-r--r-- | 5.1 KB |
ts_fsm.c | -rw-r--r-- | 10.4 KB |
ts_kmp.c | -rw-r--r-- | 4.1 KB |
ubsan.c | -rw-r--r-- | 11.6 KB |
ubsan.h | -rw-r--r-- | 2.6 KB |
ucmpdi2.c | -rw-r--r-- | 568 bytes |
ucs2_string.c | -rw-r--r-- | 2.5 KB |
usercopy.c | -rw-r--r-- | 2.4 KB |
uuid.c | -rw-r--r-- | 2.9 KB |
vsprintf.c | -rw-r--r-- | 87.3 KB |
win_minmax.c | -rw-r--r-- | 3.4 KB |
xarray.c | -rw-r--r-- | 58.8 KB |
xxhash.c | -rw-r--r-- | 12.7 KB |
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