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| author | Jann Horn <jannh@google.com> | 2018-10-05 15:52:03 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-18 09:13:21 +0200 |
| commit | 44ccf71e9c13ceebc915daaf7b5645e17e77f47d (patch) | |
| tree | 984b07b9c01a5a279938cfc130465fe5ba04a227 /mm/vmstat.c | |
| parent | a295ff4bff4c41823e7b33078d8164805cebdda4 (diff) | |
| download | linux-stable-44ccf71e9c13ceebc915daaf7b5645e17e77f47d.tar.gz linux-stable-44ccf71e9c13ceebc915daaf7b5645e17e77f47d.tar.bz2 linux-stable-44ccf71e9c13ceebc915daaf7b5645e17e77f47d.zip | |
mm/vmstat.c: fix outdated vmstat_text
commit 28e2c4bb99aa40f9d5f07ac130cbc4da0ea93079 upstream.
7a9cdebdcc17 ("mm: get rid of vmacache_flush_all() entirely") removed the
VMACACHE_FULL_FLUSHES statistics, but didn't remove the corresponding
entry in vmstat_text. This causes an out-of-bounds access in
vmstat_show().
Luckily this only affects kernels with CONFIG_DEBUG_VM_VMACACHE=y, which
is probably very rare.
Link: http://lkml.kernel.org/r/20181001143138.95119-1-jannh@google.com
Fixes: 7a9cdebdcc17 ("mm: get rid of vmacache_flush_all() entirely")
Signed-off-by: Jann Horn <jannh@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Kemi Wang <kemi.wang@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/vmstat.c')
| -rw-r--r-- | mm/vmstat.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c index d31e801a467c..5e6a4d76659d 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1089,7 +1089,6 @@ const char * const vmstat_text[] = { #ifdef CONFIG_DEBUG_VM_VMACACHE "vmacache_find_calls", "vmacache_find_hits", - "vmacache_full_flushes", #endif #endif /* CONFIG_VM_EVENTS_COUNTERS */ }; |