mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-14 12:37:32 +00:00
Code Issues Releases Wiki Activity

ipv6: set msg_control_is_user in do_ipv6_getsockopt

Browse source 
While do_ipv6_getsockopt does not call the high-level recvmsg helper,
the msghdr eventually ends up being passed to put_cmsg anyway, and thus
needs msg_control_is_user set to the proper value.

Fixes: 1f466e1f15 ("net: cleanly handle kernel vs user buffers for ->msg_control")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christoph Hellwig 2020-05-13 21:36:41 +02:00 committed by David S. Miller
parent 87f785e962
commit 1b2f08df0a
1 changed files with 1 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
net/ipv6/ipv6_sockglue.c
View file

@ -1075,6 +1075,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
msg.msg_control = optval;
msg.msg_controllen = len;
msg.msg_flags = flags;
msg.msg_control_is_user = true;
lock_sock(sk);
skb = np->pktoptions;