mm, slub: fix potential memoryleak in kmem_cache_open()
authorMiaohe Lin <linmiaohe@huawei.com>
Mon, 18 Oct 2021 22:15:59 +0000 (15:15 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 19 Oct 2021 06:22:03 +0000 (20:22 -1000)
commit9037c57681d25e4dcc442d940d6dbe24dd31f461
tree65a4259dcc903763b354522655cdea81938bb66d
parent899447f669da76cc3605665e1a95ee877bc464cc
mm, slub: fix potential memoryleak in kmem_cache_open()

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.

Link: https://lkml.kernel.org/r/20210916123920.48704-4-linmiaohe@huawei.com
Fixes: 210e7a43fa90 ("mm: SLUB freelist randomization")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Bharata B Rao <bharata@linux.ibm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/slub.c