Linux-WPAN Archive on
 help / color / Atom feed
* [PATCH] net: ieee802154: fix error return code of raw_sendmsg()
@ 2021-03-08  9:27 Jia-Ju Bai
  0 siblings, 0 replies; only message in thread
From: Jia-Ju Bai @ 2021-03-08  9:27 UTC (permalink / raw)
  To: alex.aring, stefan, davem, kuba
  Cc: linux-wpan, netdev, linux-kernel, Jia-Ju Bai

When sock_alloc_send_skb() returns NULL to skb, no error return code of
raw_sendmsg() is assigned.
To fix this bug, err is assigned with -ENOMEM in this case.

Fixes: 78f821b64826 ("ieee802154: socket: put handling into one file")
Reported-by: TOTE Robot <>
Signed-off-by: Jia-Ju Bai <>
 net/ieee802154/socket.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
index a45a0401adc5..3d76b207385e 100644
--- a/net/ieee802154/socket.c
+++ b/net/ieee802154/socket.c
@@ -277,8 +277,10 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
 	tlen = dev->needed_tailroom;
 	skb = sock_alloc_send_skb(sk, hlen + tlen + size,
 				  msg->msg_flags & MSG_DONTWAIT, &err);
-	if (!skb)
+	if (!skb) {
+		err = -ENOMEM;
 		goto out_dev;
+	}
 	skb_reserve(skb, hlen);

^ permalink raw reply	[flat|nested] only message in thread

only message in thread, back to index

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-08  9:27 [PATCH] net: ieee802154: fix error return code of raw_sendmsg() Jia-Ju Bai

Linux-WPAN Archive on

Archives are clonable:
	git clone --mirror linux-wpan/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-wpan linux-wpan/ \
	public-inbox-index linux-wpan

Example config snippet for mirrors

Newsgroup available over NNTP:

AGPL code for this site: git clone