Commit a134f083 authored by David S. Miller's avatar David S. Miller

ipv4: Missing sk_nulls_node_init() in ping_unhash().

If we don't do that, then the poison value is left in the ->pprev
backlink.

This can cause crashes if we do a disconnect, followed by a connect().
Tested-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Reported-by: default avatarWen Xu <hotdog3645@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e813bb2b
......@@ -158,6 +158,7 @@ void ping_unhash(struct sock *sk)
if (sk_hashed(sk)) {
write_lock_bh(&ping_table.lock);
hlist_nulls_del(&sk->sk_nulls_node);
sk_nulls_node_init(&sk->sk_nulls_node);
sock_put(sk);
isk->inet_num = 0;
isk->inet_sport = 0;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment