From: Eric Dumazet <eduma...@google.com> In my last patch, I missed fact that cork.base.dst was not initialized in ip6_make_skb() :
If ip6_setup_cork() returns an error, we might attempt a dst_release() on some random pointer. Fixes: 862c03ee1deb ("ipv6: fix possible mem leaks in ipv6_make_skb()") Signed-off-by: Eric Dumazet <eduma...@google.com> Reported-by: syzbot <syzkal...@googlegroups.com> --- net/ipv6/ip6_output.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 688ba5f7516b37c87b879036dce781bdcfa01739..78a774e7af12b5725577fb4aa3c917af2e171a8d 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1733,6 +1733,7 @@ struct sk_buff *ip6_make_skb(struct sock *sk, cork.base.flags = 0; cork.base.addr = 0; cork.base.opt = NULL; + cork.base.dst = NULL; v6_cork.opt = NULL; err = ip6_setup_cork(sk, &cork, &v6_cork, ipc6, rt, fl6); if (err) {