From 1ac06e0306d0192a7a4d9ea1c9e06d355ce7e7d3 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Tue, 20 May 2008 14:32:14 -0700 Subject: ipsec: Use the correct ip_local_out function Because the IPsec output function xfrm_output_resume does its own dst_output call it should always call __ip_local_output instead of ip_local_output as the latter may invoke dst_output directly. Otherwise the return values from nf_hook and dst_output may clash as they both use the value 1 but for different purposes. When that clash occurs this can cause a packet to be used after it has been freed which usually leads to a crash. Because the offending value is only returned from dst_output with qdiscs such as HTB, this bug is normally not visible. Thanks to Marco Berizzi for his perseverance in tracking this down. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/ipv4/route.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/ipv4') diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 92f90ae46f4..df41026b60d 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -160,7 +160,7 @@ static struct dst_ops ipv4_dst_ops = { .negative_advice = ipv4_negative_advice, .link_failure = ipv4_link_failure, .update_pmtu = ip_rt_update_pmtu, - .local_out = ip_local_out, + .local_out = __ip_local_out, .entry_size = sizeof(struct rtable), .entries = ATOMIC_INIT(0), }; -- cgit v1.2.3