3.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
[ Upstream commit 3eeff778e00c956875c70b145c52638c313dfb23 ]
It should be checking flags, not msg->msg_flags. It's ->sendmsg()
instances that need to look for that in ->msg_flags, ->recvmsg() ones
(including the other ->recvmsg() instance in that file, as well as
unix_dgram_recvmsg() this one claims to be imitating) check in flags.
Braino had been introduced in commit dcda13 ("caif: Bugfix - use MSG_TRUNC
in receive") back in 2010, so it goes quite a while back.
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/caif/caif_socket.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -281,7 +281,7 @@ static int caif_seqpkt_recvmsg(struct ki
int copylen;
ret = -EOPNOTSUPP;
- if (m->msg_flags&MSG_OOB)
+ if (flags & MSG_OOB)
goto read_error;
skb = skb_recv_datagram(sk, flags, 0 , &ret);
--
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