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authorHerbert Xu <herbert@gondor.apana.org.au>2010-02-15 20:00:51 +0000
committerDavid S. Miller <davem@davemloft.net>2010-02-16 14:53:24 -0800
commit553f9118abc4fc53674fff87f6fe5fa3f56a41ed (patch)
tree8b6fcbbfc3709915cc733aa48a49f95d9f930e89 /net/xfrm
parent10e7454ed7a2da39f1f6255f63d7df27ab4bb67f (diff)
downloadlinux-2.6.34-ux500-553f9118abc4fc53674fff87f6fe5fa3f56a41ed.tar.gz
xfrm: Fix xfrm_state_clone leak
xfrm_state_clone calls kfree instead of xfrm_state_put to free a failed state. Depending on the state of the failed state, it can cause leaks to things like module references. All states should be freed by xfrm_state_put past the point of xfrm_init_state. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_state.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index b36cc344474..f445ea1c5f5 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1102,7 +1102,7 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, int *errp)
int err = -ENOMEM;
struct xfrm_state *x = xfrm_state_alloc(net);
if (!x)
- goto error;
+ goto out;
memcpy(&x->id, &orig->id, sizeof(x->id));
memcpy(&x->sel, &orig->sel, sizeof(x->sel));
@@ -1160,16 +1160,10 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, int *errp)
return x;
error:
+ xfrm_state_put(x);
+out:
if (errp)
*errp = err;
- if (x) {
- kfree(x->aalg);
- kfree(x->ealg);
- kfree(x->calg);
- kfree(x->encap);
- kfree(x->coaddr);
- }
- kfree(x);
return NULL;
}