From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f77.google.com (mail-ot1-f77.google.com [209.85.210.77]) (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 719D62DB78B for ; Thu, 6 Aug 2026 00:12:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.77 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785975158; cv=none; b=U9Y9Q/dsSZYrIO7P8vEVeDGOJHyaJvfhsRQOrqFpaEhHZXofXUhcFuB18tfM3nBMpC3I3jyGtHJHvXQXHj/YV2xuLON8JXOVll/kFSg4eJPgkFl5ZhfAG3mi026MDy5YGHEKWJ8dHngefRD38HjUy37m+T9tF2Zbn2FRgQ9OWQI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785975158; c=relaxed/simple; bh=oZVLuIcxRieMCqQ86u6beo7Iik2GGXzwb5yyKA+Im9U=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=YM5A/5G3nZ13LUt14jwZ7DpV7bMO0pr9wo0uzPjdDqqfNPeDrc9RJYq5fFCVSh6/gvCbdJBjW9ORqEhNkOTO6WHOUqmE62uUE1MCfSjmsbJoYDSHvJPoaPA3FMBOwkaQbbJuoL/AZP07BmmqW/sFzsayN3zT9acwE8bULMthtJw= 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=209.85.210.77 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-ot1-f77.google.com with SMTP id 46e09a7af769-7e9fdc2870fso920863a34.2 for ; Wed, 05 Aug 2026 17:12:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1785975156; x=1786579956; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=H2gcXpVBtJ+YVASXQziPjGqs3OlOkoqkEmRd3mkgHHc=; b=S8AEnAWEAKHk1CiSClQFEqbXlMtzbstGCOIwT718eUNoIngVkO87rdYvAXyxsxfT7g Q1op/x108ZBEwvUhe+9LTawJKuCrp5+XVAXln06qzeqy3M5bzfTkuvZEqb6ydVkdVUXv 6x+4CwusY8K/eMOoZBIbXMUMJ3XjF4NC0mZRNtjYbDIk7Pa3mN0ILs+RMbhRmmtRlHpl 4Q7UM2huzvOleZUBGzpbdZBszfvqk5dHFvyovM07jBQ4BrhsdA1Z/LLq3epusP4OvzDh NDDje8aDIqltrqPhCfCfpHWr9/TWsBHFOCnJTDesPm/vd/fVjlyxyo8h3xsDRV8+2H7k nwgA== X-Forwarded-Encrypted: i=1; AHgh+RrU2G6FFsg/zmO5RYazxSmd7Z5n9PGrV66X7SUbvXA2Y7o6bMQH4yJQNY87oSVFQhkNKVgXCPv8r7PGhNk=@vger.kernel.org X-Gm-Message-State: AOJu0YxJZ5VNG/BC8/OdgeXL0pq8ex3QlCAHHaH7CK79NfSdzBk5ObDo PV/Qqd7zSwtB/4p6MGsK5N7dNxKQ9Q73ZqUtNUpgvxcfxba+1LHEO0FXKYtSagANNlLPagViy1g 6qv5VdoWTndbuARby3Y0vXzBr3rErho+xDNk8qP2zhfg6v/D47IrzuTejtj4= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:4b84:b0:6a0:f319:6903 with SMTP id 006d021491bc7-6ae96bcee56mr5770051eaf.6.1785975156504; Wed, 05 Aug 2026 17:12:36 -0700 (PDT) Date: Wed, 05 Aug 2026 17:12:36 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a73d174.5aeeccc9.207e63.000c.GAE@google.com> Subject: [syzbot] [afs?] [net?] kernel BUG in rxrpc_destroy_all_connections (2) From: syzbot To: 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 found the following issue on: HEAD commit: c21bb4193868 Merge tag 'for_linus' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1126cbb9580000 kernel config: https://syzkaller.appspot.com/x/.config?x=b7079b368dcec295 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 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/9f5212fcea24/disk-c21bb419.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/9a166d81a082/vmlinux-c21bb419.xz kernel image: https://storage.googleapis.com/syzbot-assets/b36458f10930/bzImage-c21bb419.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+89001660f14fb7684c83@syzkaller.appspotmail.com tipc: Left network mode rxrpc: Assertion failed ------------[ cut here ]------------ kernel BUG at net/rxrpc/conn_object.c:488! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 1040 Comm: kworker/u8:6 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 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 ca 82 98 00 48 c7 c7 80 12 3a 8d e8 9e 79 b0 ff 90 0f 0b e8 b6 82 98 00 48 c7 c7 80 12 3a 8d e8 8a 79 b0 ff 90 <0f> 0b e8 a2 82 98 00 49 63 d6 48 83 ce ff 48 c7 c7 20 7c de 90 e8 RSP: 0018:ffffc9000519f990 EFLAGS: 00010282 RAX: 0000000000000017 RBX: ffff888029c40000 RCX: 0000000000000000 RDX: 0000000000000017 RSI: ffffffff81e89fd9 RDI: fffff52000a33f23 RBP: ffff888029c40064 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 1ffff92000a33f34 R13: ffff888029c40078 R14: ffff888029c40088 R15: ffff888029c40088 FS: 0000000000000000(0000) GS:ffff888123dd9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6c701e4b45 CR3: 0000000057648000 CR4: 0000000000350ef0 Call Trace: rxrpc_exit_net+0x7b/0xc0 net/rxrpc/net_ns.c:113 ops_exit_list net/core/net_namespace.c:199 [inline] ops_undo_list+0x2ee/0xab0 net/core/net_namespace.c:252 cleanup_net+0x499/0x920 net/core/net_namespace.c:702 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322 process_scheduled_works kernel/workqueue.c:3405 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x72b/0xd50 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 ca 82 98 00 48 c7 c7 80 12 3a 8d e8 9e 79 b0 ff 90 0f 0b e8 b6 82 98 00 48 c7 c7 80 12 3a 8d e8 8a 79 b0 ff 90 <0f> 0b e8 a2 82 98 00 49 63 d6 48 83 ce ff 48 c7 c7 20 7c de 90 e8 RSP: 0018:ffffc9000519f990 EFLAGS: 00010282 RAX: 0000000000000017 RBX: ffff888029c40000 RCX: 0000000000000000 RDX: 0000000000000017 RSI: ffffffff81e89fd9 RDI: fffff52000a33f23 RBP: ffff888029c40064 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 1ffff92000a33f34 R13: ffff888029c40078 R14: ffff888029c40088 R15: ffff888029c40088 FS: 0000000000000000(0000) GS:ffff888123dd9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558cf9997138 CR3: 000000000e994000 CR4: 0000000000350ef0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup