From 6c813a7297e3af4cd7c3458e09e9ee3d161c6830 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Sun, 6 Aug 2006 22:22:47 -0700 Subject: [PATCH] [IPV6]: Fix crash in ip6_del_rt ip6_null_entry doesn't have rt6i_table set, when trying to delete it the kernel crashes dereferencing table->tb6_lock. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/ipv6/route.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index ff5affe263..41c5905d31 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1223,6 +1223,9 @@ int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr, struct int err; struct fib6_table *table; + if (rt == &ip6_null_entry) + return -ENOENT; + table = rt->rt6i_table; write_lock_bh(&table->tb6_lock); -- 2.39.5