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Date: Sun, 25 Feb 2007 21:43:15 +0100 From: Bernhard Walle <bwalle@...e.de> To: Miika Komu <miika@....fi> Cc: netdev@...r.kernel.org Subject: [PATCH] Fix oops in xfrm4_dst_destroy() With 2.6.21-rc1, I get an oops when running 'ifdown eth0' and an IPsec connection is active. If I shut down the connection before running 'ifdown eth0', then there's no problem. The critical operation of this script is to kill dhcpd. The problem is probably caused by commit with git identifier 4337226228e1cfc1d70ee975789c6bd070fb597c (Linus tree) "[IPSEC]: IPv4 over IPv6 IPsec tunnel". This patch fixes that oops. I don't know the network code of the Linux kernel in deep, so if that fix is wrong, please change it. But please fix the oops. :) Signed-off-by: Bernhard Walle <bwalle@...e.de> --- net/ipv4/xfrm4_policy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6.21-rc1/net/ipv4/xfrm4_policy.c =================================================================== --- linux-2.6.21-rc1.orig/net/ipv4/xfrm4_policy.c +++ linux-2.6.21-rc1/net/ipv4/xfrm4_policy.c @@ -291,7 +291,7 @@ static void xfrm4_dst_destroy(struct dst if (likely(xdst->u.rt.idev)) in_dev_put(xdst->u.rt.idev); - if (dst->xfrm->props.family == AF_INET && likely(xdst->u.rt.peer)) + if (dst->xfrm && dst->xfrm->props.family == AF_INET && likely(xdst->u.rt.peer)) inet_putpeer(xdst->u.rt.peer); xfrm_dst_destroy(xdst); } - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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