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Subject[PATCH RT 3/7] mm/slub: close possible memory-leak in kmem_cache_alloc_bulk()
Date
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

Under certain circumstances we could leak elements which were moved to
the local "to_free" list. The damage is limited since I can't find
any users here.

Cc: stable-rt@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
mm/slub.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/mm/slub.c b/mm/slub.c
index b183c5271607..b3626ab324fe 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3026,6 +3026,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
return i;
error:
local_irq_enable();
+ free_delayed(&to_free);
slab_post_alloc_hook(s, flags, i, p);
__kmem_cache_free_bulk(s, i, p);
return 0;
--
2.14.3
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