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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2010-02-15 20:00:51 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-16 14:53:24 -0800 |
| commit | 553f9118abc4fc53674fff87f6fe5fa3f56a41ed (patch) | |
| tree | 8b6fcbbfc3709915cc733aa48a49f95d9f930e89 | |
| parent | 10e7454ed7a2da39f1f6255f63d7df27ab4bb67f (diff) | |
| download | linux-553f9118abc4fc53674fff87f6fe5fa3f56a41ed.tar.bz2 | |
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>
| -rw-r--r-- | net/xfrm/xfrm_state.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index b36cc344474b..f445ea1c5f52 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; } |