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authorEric Dumazet <edumazet@google.com>2018-01-12 09:31:18 +0300
committerDavid S. Miller <davem@davemloft.net>2018-01-15 22:19:32 +0300
commit95ef498d977bf44ac094778fd448b98af158a3e6 (patch)
treec2394f0f4eaf0874bec36d0b485fdf9badeefaa1 /net/ipv6
parent37f47bc90c7481e7959703ad1defc4fc9f5d85e3 (diff)
downloadlinux-95ef498d977bf44ac094778fd448b98af158a3e6.tar.xz
ipv6: ip6_make_skb() needs to clear cork.base.dst
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>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ip6_output.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 8fe58a2d305c..4f7d8de56611 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1735,6 +1735,7 @@ 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) {