The patch titled
memcontrol: fix potential null deref
has been added to the -mm tree. Its filename is
memcontrol-fix-potential-null-deref.patch
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------------------------------------------------------
Subject: memcontrol: fix potential null deref
From: Dan Carpenter <error27@xxxxxxxxx>
There was a potential null deref introduced in c62b1a3b31b5 ("memcg: use
generic percpu instead of private implementation").
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff -puN mm/memcontrol.c~memcontrol-fix-potential-null-deref mm/memcontrol.c
--- a/mm/memcontrol.c~memcontrol-fix-potential-null-deref
+++ a/mm/memcontrol.c
@@ -3691,8 +3691,10 @@ static struct mem_cgroup *mem_cgroup_all
else
mem = vmalloc(size);
- if (mem)
- memset(mem, 0, size);
+ if (!mem)
+ return NULL;
+
+ memset(mem, 0, size);
mem->stat = alloc_percpu(struct mem_cgroup_stat_cpu);
if (!mem->stat) {
if (size < PAGE_SIZE)
_
Patches currently in -mm which might be from error27@xxxxxxxxx are
origin.patch
memcontrol-fix-potential-null-deref.patch
linux-next.patch
dpt_i20-several-use-after-free-issues.patch
i915-fix-small-leak-on-error-path.patch
scsi-remove-superfluous-null-pointer-check-from-scsi_kill_request.patch
goku_udc-potential-null-dereference.patch
dynamic_debug-small-cleanup-in-ddebug_proc_write.patch
proc-cleanup-remove-unused-assignments.patch
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