From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f70.google.com (mail-oa1-f70.google.com [209.85.160.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5EB3A2AD3C for ; Sun, 27 Sep 2026 08:29:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790497744; cv=none; b=K/DMu6MaKo2owRpzd+UNmS+mo9AfSrsrcVr8r3mVAaKmXDI2CuS/YUu0XIuZJ+hy3F9tIoLZeW/YKIyqlFKCPGmGOgg8c8yBxL1W1G3+n5Pf3kpId1eDVW10ttJxPBmjEQGHlYgVBfduwatq6RAZ/uXst1JogGnQqLPLGYhQJ8k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790497744; c=relaxed/simple; bh=5J/wLB1+LRP5/omLkXxmg34WIC7l6MT45U8sOJ8r4gQ=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=nnbNGjitT5OwwQQNXyEbELoFM5KLuP0yyGH3rKIiBUq+ULp6sUnuxuZAMWpoTa5eLfZhCJ/wJYW3Sl6aVPlaaTw4s/8KTv1pTDypXN1ux/B7fFl+UDM0X7AxIrilwhrKesgZj9Ebn+KW0HHxELuTrRGqojk2tKZtyqy1B83irAQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.160.70 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oa1-f70.google.com with SMTP id 586e51a60fabf-4574f1cac98so3712177fac.3 for ; Sun, 27 Sep 2026 01:29:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790497742; x=1791102542; h=content-type:to:from:subject:message-id:in-reply-to:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to:content-type; bh=Xb0U4y4WdgYCeZKVxlGgjl5e3S7LrU0XCMC1dQKLZj4=; b=gDegJpeaaVWnJYA9jcll7BEPe0pcgLe0S/b/R9/AKPDfWHe/6Xaf7OuEt9nqi0Qjp0 vCBPY9+bNa3YL7jgD08SdovudTjFvXULqDLoBy4U4CrkcbYQfGQW2DCyzh4HStRW3fZZ RaqlmltLVzmMrk5MOqmvuFRIuydUN/r2aYpc4Rop5eZnKvslbWWihOZ4j2UpihdgYMqF 3VVm4yWckmBkbhfIotdb01w1Mi7Dz7mYhhBFgMYGRHBXFB7Blw7fPvb8D+ThM9D+Tlkk VzhLshLT3ytru9bfez/kRLCseo9C8zmKQUxCAPEzYssVHAmSikmqpzEpGOinaTrSdA0V ztGw== X-Forwarded-Encrypted: i=1; AKwUvBwm+yWSAWa8o/P+G17KpxC8XHIYSHR9QfxT9zQJNzx8bfSXq5ttdLMms/AFL2QK9xL9pNfb9Xk=@vger.kernel.org X-Gm-Message-State: AFuF++mBwT01jQu1O2wAA8FgDk/y75wbVCxKz3C6xy26lgIq9t8JltlL f8hS4aFGrSjot19EDQfSA1mgNxNjstf4MgTUGwtHAWYN794sZZL/CFJM5eYefrHHg4qizw+tAOx LZxD1N1BYrBWAu8tcLmpQMwskksT6o7VEDvf2j8iNnJNosLwt6ThZGbBL7GM= Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:14ce:b0:4c7:30a6:97b9 with SMTP id 5614622812f47-4d72aa5bb67mr10195684b6e.38.1790497742233; Sun, 27 Sep 2026 01:29:02 -0700 (PDT) Date: Sun, 27 Sep 2026 01:29:02 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ab8d3ce.dc2998a4.2261f5.0063.GAE@google.com> Subject: Re: [syzbot] [net?] [afs?] kernel BUG in rxrpc_destroy_all_connections (2) From: syzbot To: azpijr@gmail.com, davem@davemloft.net, dhowells@redhat.com, edumazet@google.com, horms@kernel.org, kuba@kernel.org, linux-afs@lists.infradead.org, linux-kernel@vger.kernel.org, marc.dionne@auristor.com, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: kernel BUG in rxrpc_destroy_all_connections bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): Released all slaves rxrpc: Assertion failed ------------[ cut here ]------------ kernel BUG at net/rxrpc/conn_object.c:488! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 2 UID: 0 PID: 13 Comm: kworker/u32:1 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Workqueue: netns cleanup_net RIP: 0010:rxrpc_destroy_all_connections.cold+0x12/0x14 net/rxrpc/conn_object.c:488 Code: ff 90 0f 0b e8 6e 97 99 00 48 c7 c7 20 73 5d 8d e8 72 be af ff 90 0f 0b e8 5a 97 99 00 48 c7 c7 20 73 5d 8d e8 5e be af ff 90 <0f> 0b e8 46 97 99 00 49 63 d6 48 83 ce ff 48 c7 c7 40 02 01 91 e8 RSP: 0018:ffffc90000107970 EFLAGS: 00010286 RAX: 0000000000000017 RBX: ffff888053d70000 RCX: 0000000000000000 RDX: 0000000000000017 RSI: ffffffff81ea1579 RDI: fffff52000020f1f RBP: ffff888053d70064 R08: 0000000000000007 R09: 0000000000000000 R10: 8000000000000000 R11: 0000000000000001 R12: 1ffff92000020f30 R13: ffff888053d70078 R14: ffff888053d70088 R15: ffff888053d70088 FS: 0000000000000000(0000) GS:ffff8880d5d52000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005562f0adc000 CR3: 000000002d8eb000 CR4: 0000000000352ef0 Call Trace: rxrpc_exit_net+0x7b/0xc0 net/rxrpc/net_ns.c:113 ops_exit_list net/core/net_namespace.c:200 [inline] ops_undo_list+0x2ee/0xab0 net/core/net_namespace.c:253 cleanup_net+0x499/0x920 net/core/net_namespace.c:706 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396 process_scheduled_works kernel/workqueue.c:3479 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560 kthread+0x373/0x450 kernel/kthread.c:436 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:rxrpc_destroy_all_connections.cold+0x12/0x14 net/rxrpc/conn_object.c:488 Code: ff 90 0f 0b e8 6e 97 99 00 48 c7 c7 20 73 5d 8d e8 72 be af ff 90 0f 0b e8 5a 97 99 00 48 c7 c7 20 73 5d 8d e8 5e be af ff 90 <0f> 0b e8 46 97 99 00 49 63 d6 48 83 ce ff 48 c7 c7 40 02 01 91 e8 RSP: 0018:ffffc90000107970 EFLAGS: 00010286 RAX: 0000000000000017 RBX: ffff888053d70000 RCX: 0000000000000000 RDX: 0000000000000017 RSI: ffffffff81ea1579 RDI: fffff52000020f1f RBP: ffff888053d70064 R08: 0000000000000007 R09: 0000000000000000 R10: 8000000000000000 R11: 0000000000000001 R12: 1ffff92000020f30 R13: ffff888053d70078 R14: ffff888053d70088 R15: ffff888053d70088 FS: 0000000000000000(0000) GS:ffff8880d5d52000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005562f0adc000 CR3: 000000002d8eb000 CR4: 0000000000352ef0 Tested on: commit: a7bfaba4 ipv6: fix prefix route expiry in modify_prefi.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git console output: https://syzkaller.appspot.com/x/log.txt?x=16e8fd25580000 kernel config: https://syzkaller.appspot.com/x/.config?x=7d012d9c67977ee4 dashboard link: https://syzkaller.appspot.com/bug?extid=89001660f14fb7684c83 compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 patch: https://syzkaller.appspot.com/x/patch.diff?x=159dda05580000