diff mbox

[PATCHv1,net-next,4/5] netlink: mmap: update tx type check

Message ID 20150812083526.GE13385@gmail.com
State Changes Requested, archived
Delegated to: David Miller
Headers show

Commit Message

Ken-ichirou MATSUZAWA Aug. 12, 2015, 8:35 a.m. UTC 
We need to accept msg_iter.type 1(WRITE) which is set in sendto/sendmsg.

Signed-off-by: Ken-ichirou MATSUZAWA <chamas@h4.dion.ne.jp>
---
 net/netlink/af_netlink.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index c03fad0..d8f5151 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2451,7 +2451,7 @@  static int netlink_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
 	 * sendmsg(), but that's what we've got...
 	 */
 	if (netlink_tx_is_mmaped(sk) &&
-	    msg->msg_iter.type == ITER_IOVEC &&
+	    !(msg->msg_iter.type & (ITER_KVEC | ITER_BVEC)) &&
 	    msg->msg_iter.nr_segs == 1 &&
 	    msg->msg_iter.iov->iov_base == NULL) {
 		err = netlink_mmap_sendmsg(sk, msg, dst_portid, dst_group,