https://github.com/torvalds/linux
Revision ed5bd7dc88edf4a4a9c67130742b1b59aa017a5f authored by Luis R. Rodriguez on 08 February 2017, 22:30:50 UTC, committed by Linus Torvalds on 08 February 2017, 23:41:43 UTC
The user_header gets caught by kmemleak with the following splat as
missing a free:
unreferenced object 0xffff99667a733d80 (size 96):
comm "swapper/0", pid 1, jiffies 4294892317 (age 62191.468s)
hex dump (first 32 bytes):
a0 b6 92 b4 ff ff ff ff 00 00 00 00 01 00 00 00 ................
01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
kmemleak_alloc+0x4a/0xa0
__kmalloc+0x144/0x260
__register_sysctl_table+0x54/0x5e0
register_sysctl+0x1b/0x20
user_namespace_sysctl_init+0x17/0x34
do_one_initcall+0x52/0x1a0
kernel_init_freeable+0x173/0x200
kernel_init+0xe/0x100
ret_from_fork+0x2c/0x40
The BUG_ON()s are intended to crash so no need to clean up after
ourselves on error there. This is also a kernel/ subsys_init() we don't
need a respective exit call here as this is never modular, so just white
list it.
Link: http://lkml.kernel.org/r/20170203211404.31458-1-mcgrof@kernel.org
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Nikolay Borisov <n.borisov.lkml@gmail.com>
Cc: Serge Hallyn <serge@hallyn.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 926af62
Tip revision: ed5bd7dc88edf4a4a9c67130742b1b59aa017a5f authored by Luis R. Rodriguez on 08 February 2017, 22:30:50 UTC
kernel/ucount.c: mark user_header with kmemleak_ignore()
kernel/ucount.c: mark user_header with kmemleak_ignore()
Tip revision: ed5bd7d
| File | Mode | Size |
|---|---|---|
| kasan | ||
| Kconfig | -rw-r--r-- | 23.9 KB |
| Kconfig.debug | -rw-r--r-- | 3.6 KB |
| Makefile | -rw-r--r-- | 3.4 KB |
| backing-dev.c | -rw-r--r-- | 26.3 KB |
| balloon_compaction.c | -rw-r--r-- | 4.7 KB |
| bootmem.c | -rw-r--r-- | 20.8 KB |
| cleancache.c | -rw-r--r-- | 9.9 KB |
| cma.c | -rw-r--r-- | 12.2 KB |
| cma.h | -rw-r--r-- | 515 bytes |
| cma_debug.c | -rw-r--r-- | 4.4 KB |
| compaction.c | -rw-r--r-- | 56.5 KB |
| debug.c | -rw-r--r-- | 4.3 KB |
| debug_page_ref.c | -rw-r--r-- | 1.3 KB |
| dmapool.c | -rw-r--r-- | 13.8 KB |
| early_ioremap.c | -rw-r--r-- | 6.2 KB |
| fadvise.c | -rw-r--r-- | 4.3 KB |
| failslab.c | -rw-r--r-- | 1.4 KB |
| filemap.c | -rw-r--r-- | 79.8 KB |
| frame_vector.c | -rw-r--r-- | 6.1 KB |
| frontswap.c | -rw-r--r-- | 14.3 KB |
| gup.c | -rw-r--r-- | 42.5 KB |
| highmem.c | -rw-r--r-- | 11.7 KB |
| huge_memory.c | -rw-r--r-- | 65.0 KB |
| hugetlb.c | -rw-r--r-- | 123.5 KB |
| hugetlb_cgroup.c | -rw-r--r-- | 10.9 KB |
| hwpoison-inject.c | -rw-r--r-- | 3.2 KB |
| init-mm.c | -rw-r--r-- | 680 bytes |
| internal.h | -rw-r--r-- | 15.3 KB |
| interval_tree.c | -rw-r--r-- | 3.1 KB |
| khugepaged.c | -rw-r--r-- | 48.4 KB |
| kmemcheck.c | -rw-r--r-- | 2.9 KB |
| kmemleak-test.c | -rw-r--r-- | 3.2 KB |
| kmemleak.c | -rw-r--r-- | 56.1 KB |
| ksm.c | -rw-r--r-- | 63.5 KB |
| list_lru.c | -rw-r--r-- | 12.6 KB |
| maccess.c | -rw-r--r-- | 3.0 KB |
| madvise.c | -rw-r--r-- | 19.5 KB |
| memblock.c | -rw-r--r-- | 49.5 KB |
| memcontrol.c | -rw-r--r-- | 154.5 KB |
| memory-failure.c | -rw-r--r-- | 49.0 KB |
| memory.c | -rw-r--r-- | 112.0 KB |
| memory_hotplug.c | -rw-r--r-- | 55.0 KB |
| mempolicy.c | -rw-r--r-- | 71.2 KB |
| mempool.c | -rw-r--r-- | 13.9 KB |
| memtest.c | -rw-r--r-- | 2.7 KB |
| migrate.c | -rw-r--r-- | 52.4 KB |
| mincore.c | -rw-r--r-- | 6.7 KB |
| mlock.c | -rw-r--r-- | 22.6 KB |
| mm_init.c | -rw-r--r-- | 4.8 KB |
| mmap.c | -rw-r--r-- | 94.7 KB |
| mmu_context.c | -rw-r--r-- | 1.3 KB |
| mmu_notifier.c | -rw-r--r-- | 11.7 KB |
| mmzone.c | -rw-r--r-- | 2.4 KB |
| mprotect.c | -rw-r--r-- | 13.4 KB |
| mremap.c | -rw-r--r-- | 15.6 KB |
| msync.c | -rw-r--r-- | 2.6 KB |
| nobootmem.c | -rw-r--r-- | 11.1 KB |
| nommu.c | -rw-r--r-- | 48.4 KB |
| oom_kill.c | -rw-r--r-- | 28.6 KB |
| page-writeback.c | -rw-r--r-- | 84.4 KB |
| page_alloc.c | -rw-r--r-- | 203.6 KB |
| page_counter.c | -rw-r--r-- | 4.8 KB |
| page_ext.c | -rw-r--r-- | 11.4 KB |
| page_idle.c | -rw-r--r-- | 5.4 KB |
| page_io.c | -rw-r--r-- | 9.4 KB |
| page_isolation.c | -rw-r--r-- | 8.4 KB |
| page_owner.c | -rw-r--r-- | 14.7 KB |
| page_poison.c | -rw-r--r-- | 3.5 KB |
| pagewalk.c | -rw-r--r-- | 7.5 KB |
| percpu-km.c | -rw-r--r-- | 2.8 KB |
| percpu-vm.c | -rw-r--r-- | 10.0 KB |
| percpu.c | -rw-r--r-- | 66.4 KB |
| pgtable-generic.c | -rw-r--r-- | 4.8 KB |
| process_vm_access.c | -rw-r--r-- | 10.1 KB |
| quicklist.c | -rw-r--r-- | 2.4 KB |
| readahead.c | -rw-r--r-- | 16.1 KB |
| rmap.c | -rw-r--r-- | 51.1 KB |
| shmem.c | -rw-r--r-- | 106.9 KB |
| slab.c | -rw-r--r-- | 110.1 KB |
| slab.h | -rw-r--r-- | 13.9 KB |
| slab_common.c | -rw-r--r-- | 31.9 KB |
| slob.c | -rw-r--r-- | 16.0 KB |
| slub.c | -rw-r--r-- | 138.1 KB |
| sparse-vmemmap.c | -rw-r--r-- | 7.8 KB |
| sparse.c | -rw-r--r-- | 20.8 KB |
| swap.c | -rw-r--r-- | 27.0 KB |
| swap_cgroup.c | -rw-r--r-- | 4.6 KB |
| swap_state.c | -rw-r--r-- | 13.2 KB |
| swapfile.c | -rw-r--r-- | 77.5 KB |
| truncate.c | -rw-r--r-- | 24.9 KB |
| usercopy.c | -rw-r--r-- | 7.7 KB |
| userfaultfd.c | -rw-r--r-- | 7.2 KB |
| util.c | -rw-r--r-- | 15.9 KB |
| vmacache.c | -rw-r--r-- | 3.1 KB |
| vmalloc.c | -rw-r--r-- | 68.5 KB |
| vmpressure.c | -rw-r--r-- | 12.5 KB |
| vmscan.c | -rw-r--r-- | 111.3 KB |
| vmstat.c | -rw-r--r-- | 47.2 KB |
| workingset.c | -rw-r--r-- | 18.2 KB |
| z3fold.c | -rw-r--r-- | 21.3 KB |
| zbud.c | -rw-r--r-- | 18.2 KB |
| zpool.c | -rw-r--r-- | 10.0 KB |
| zsmalloc.c | -rw-r--r-- | 59.5 KB |
| zswap.c | -rw-r--r-- | 31.4 KB |
Computing file changes ...
