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Subject[PATCH 3/5] mm, slub: fix potential memoryleak in kmem_cache_open()
Date
In error path, the random_seq of slub cache might be leaked. Fix this by
using __kmem_cache_release() to release all the relevant resources.

Fixes: 210e7a43fa90 ("mm: SLUB freelist randomization")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
mm/slub.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/slub.c b/mm/slub.c
index a56a6423d4e8..bf1793fb4ce5 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4210,8 +4210,8 @@ static int kmem_cache_open(struct kmem_cache *s, slab_flags_t flags)
if (alloc_kmem_cache_cpus(s))
return 0;

- free_kmem_cache_nodes(s);
error:
+ __kmem_cache_release(s);
return -EINVAL;
}

--
2.23.0
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