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| author |   Jann Horn <jannh@google.com> | 2018-10-05 15:52:03 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-05 16:32:05 -0700 |
| commit | 28e2c4bb99aa40f9d5f07ac130cbc4da0ea93079 (patch) | |
| tree | e1b488d425f07fc9426a397e2e4c20d6a88da3b9 /mm/vmstat.c | |
| parent | proc: restrict kernel stack dumps to root (diff) | |
| download | linux-dev-28e2c4bb99aa40f9d5f07ac130cbc4da0ea93079.tar.xz linux-dev-28e2c4bb99aa40f9d5f07ac130cbc4da0ea93079.zip | |
mm/vmstat.c: fix outdated vmstat_text
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 8ba0870ecddd..4cea7b8f519d 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1283,7 +1283,6 @@ const char * const vmstat_text[] = { #ifdef CONFIG_DEBUG_VM_VMACACHE "vmacache_find_calls", "vmacache_find_hits", - "vmacache_full_flushes", #endif #ifdef CONFIG_SWAP "swap_ra", |