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From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+d199b52665b6c3069b94@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [net?] WARNING: ODEBUG bug in __sk_destruct (3)
Date: Sat,  9 Aug 2025 10:53:15 +0800	[thread overview]
Message-ID: <20250809025317.4045-1-hdanton@sina.com> (raw)
In-Reply-To: <6895de6e.050a0220.7f033.005d.GAE@google.com>

> Date: Fri, 08 Aug 2025 04:24:30 -0700	[thread overview]
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    7abc678e3084 Merge tag 'pmdomain-v6.16-rc2' of git://git.k..
> git tree:       bpf
> console output: https://syzkaller.appspot.com/x/log.txt?x=11b0a4f0580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=12b5044868deb866
> dashboard link: https://syzkaller.appspot.com/bug?extid=d199b52665b6c3069b94
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14a20f22580000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12af2f22580000

#syz test upstream master

--- x/net/kcm/kcmsock.c
+++ y/net/kcm/kcmsock.c
@@ -717,6 +717,8 @@ static void kcm_tx_work(struct work_stru
 
 	lock_sock(sk);
 
+	if (kcm->tx_stopped)
+		goto out;
 	/* Primarily for SOCK_DGRAM sockets, also handle asynchronous tx
 	 * aborts
 	 */
--

  parent reply	other threads:[~2025-08-09  2:53 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-08 11:24 syzbot
2025-08-08 13:56 ` Hillf Danton
2025-08-08 14:32   ` syzbot
2025-08-09  2:53 ` Hillf Danton [this message]
2025-08-09  3:18   ` syzbot
2025-08-09  4:36 ` Hillf Danton
2025-08-09  5:11   ` syzbot
2025-08-09  7:56 [PATCH net-next] net: kcm: Fix race condition in kcm_unattach() Hillf Danton
2025-08-09 11:08 ` [syzbot] [net?] WARNING: ODEBUG bug in __sk_destruct (3) syzbot

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