diff options
| author | Eric Dumazet <edumazet@google.com> | 2018-01-11 22:31:18 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-31 12:06:13 +0100 |
| commit | f64568e420e6b9b523611ef564941b83c7527614 (patch) | |
| tree | 6dca743fc101b0a8f66cdb8018e0f9c5e3189d82 | |
| parent | c867a05df5d1baefbb2040474356b5e02ca5fcaf (diff) | |
ipv6: ip6_make_skb() needs to clear cork.base.dst
[ Upstream commit 95ef498d977bf44ac094778fd448b98af158a3e6 ]
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 <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/ipv6/ip6_output.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index dfd4a9a02dc3..3ef81c387923 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1785,6 +1785,7 @@ 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, hlimit, tclass, opt, rt, fl6); if (err) { |