linux-kernel - Re: [syzbot] [net?] general protection fault in add_wait

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Message-ID: <20250203124959.114591-1-aha310510@gmail.com>
Date: Mon,  3 Feb 2025 21:49:58 +0900
From: Jeongjun Park <aha310510@...il.com>
To: syzbot+9d55b199192a4be7d02c@...kaller.appspotmail.com
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [net?] general protection fault in add_wait_queue

#syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

---
 net/vmw_vsock/virtio_transport_common.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index 7f7de6d88096..655d5f911c84 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -1298,7 +1298,8 @@ void virtio_transport_release(struct vsock_sock *vsk)
 	struct sock *sk = &vsk->sk;
 	bool remove_sock = true;
 
-	if (sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET)
+	if ((sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET)
+		&& !sock_flag(sk, SOCK_DEAD))
 		remove_sock = virtio_transport_close(vsk);
 
 	if (remove_sock) {
--