From fbd5060875d25f7764fd1c3d35b83a8ed1d88d7b Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Tue, 15 Mar 2011 21:12:49 +0000 Subject: [PATCH] xfrm: Refcount destination entry on xfrm_lookup MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We return a destination entry without refcount if a socket policy is found in xfrm_lookup. This triggers a warning on a negative refcount when freeeing this dst entry. So take a refcount in this case to fix it. This refcount was forgotten when xfrm changed to cache bundles instead of policies for outgoing flows. Signed-off-by: Steffen Klassert Acked-by: Timo Teräs Signed-off-by: David S. Miller --- net/xfrm/xfrm_policy.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 027e3c6fb7e4..15792d8b6272 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -1804,6 +1804,8 @@ restart: goto no_transform; } + dst_hold(&xdst->u.dst); + spin_lock_bh(&xfrm_policy_sk_bundle_lock); xdst->u.dst.next = xfrm_policy_sk_bundles; xfrm_policy_sk_bundles = &xdst->u.dst;