diff options
Diffstat (limited to 'mm/slab.c')
| -rw-r--r-- | mm/slab.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/mm/slab.c b/mm/slab.c index a07540e5843..a6c9166996a 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3117,13 +3117,19 @@ static inline void *____cache_alloc(struct kmem_cache *cachep, gfp_t flags) } else { STATS_INC_ALLOCMISS(cachep); objp = cache_alloc_refill(cachep, flags); + /* + * the 'ac' may be updated by cache_alloc_refill(), + * and kmemleak_erase() requires its correct value. + */ + ac = cpu_cache_get(cachep); } /* * To avoid a false negative, if an object that is in one of the * per-CPU caches is leaked, we need to make sure kmemleak doesn't * treat the array pointers as a reference to the object. */ - kmemleak_erase(&ac->entry[ac->avail]); + if (objp) + kmemleak_erase(&ac->entry[ac->avail]); return objp; } |