From f9e2342046ef1560d35bcd4a4b1197648ffd151d Mon Sep 17 00:00:00 2001 From: Wei Yang Date: Sat, 9 May 2026 20:23:58 +0800 Subject: [PATCH] net: atm: fix skb leak in sigd_send() default branch The default branch in sigd_send() calls sock_put() and returns -EINVAL without freeing the skb, while all other exit paths do so. Add the missing dev_kfree_skb() before sock_put() to fix the leak. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Wei Yang Link: https://patch.msgid.link/20260509122358.1102997-1-albin_yang@163.com Signed-off-by: Jakub Kicinski --- net/atm/signaling.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/atm/signaling.c b/net/atm/signaling.c index 358fbe5e4d1d..b991d937205a 100644 --- a/net/atm/signaling.c +++ b/net/atm/signaling.c @@ -179,6 +179,7 @@ static int sigd_send(struct atm_vcc *vcc, struct sk_buff *skb) break; default: pr_alert("bad message type %d\n", (int)msg->type); + dev_kfree_skb(skb); /* Paired with find_get_vcc(msg->vcc) above */ sock_put(sk); return -EINVAL;