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authorDan Carpenter <dan.carpenter@oracle.com>2012-12-17 16:04:21 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-17 17:15:26 -0800
commit31279b1457f992f24eee8d45ddd647f5fce42cf6 (patch)
tree25e8286f5e1fc6e01219eac7452b043a62aae90e
parent2b37c7d865121249f2dee9ae25d524333b07be63 (diff)
downloadlinux-31279b1457f992f24eee8d45ddd647f5fce42cf6.tar.bz2
aoe: fix use after free in aoedev_by_aoeaddr()
We should return NULL on failure instead of returning a freed pointer. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Ed Cashin <ecashin@coraid.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/block/aoe/aoedev.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
index e66ccbf41a50..98f2965778b9 100644
--- a/drivers/block/aoe/aoedev.c
+++ b/drivers/block/aoe/aoedev.c
@@ -461,6 +461,7 @@ aoedev_by_aoeaddr(ulong maj, int min, int do_alloc)
d->targets = kcalloc(NTARGETS, sizeof(*d->targets), GFP_ATOMIC);
if (!d->targets) {
kfree(d);
+ d = NULL;
goto out;
}
d->ntargets = NTARGETS;