From: syzbot <syzbot+1f22cb1769f249df9fa0@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org
Subject: Forwarded: general protection fault in sigd_send
Date: Thu, 30 Oct 2025 23:45:02 -0700 [thread overview]
Message-ID: <69045aee.050a0220.e9cb8.0000.GAE@google.com> (raw)
In-Reply-To: <69039850.a70a0220.5b2ed.005d.GAE@google.com>
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***
Subject: general protection fault in sigd_send
Author: hsukrut3@gmail.com
#syz test
---
net/atm/signaling.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/net/atm/signaling.c b/net/atm/signaling.c
index e70ae2c113f9..0fda16975c70 100644
--- a/net/atm/signaling.c
+++ b/net/atm/signaling.c
@@ -63,6 +63,11 @@ static void modify_qos(struct atm_vcc *vcc, struct atmsvc_msg *msg)
static int sigd_send(struct atm_vcc *vcc, struct sk_buff *skb)
{
+ if (vcc != sigd || !test_bit(ATM_VF_SESSION, &vcc->flags)) {
+ dev_kfree_skb(skb);
+ return -EPERM;
+ }
+
struct atmsvc_msg *msg;
struct atm_vcc *session_vcc;
struct sock *sk;
--
2.43.0
prev parent reply other threads:[~2025-10-31 6:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-30 16:54 [syzbot] [net?] " syzbot
2025-10-31 6:45 ` syzbot [this message]
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