From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0A638C4363D for ; Sat, 3 Oct 2020 09:04:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C7803206F8 for ; Sat, 3 Oct 2020 09:04:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725790AbgJCJET (ORCPT ); Sat, 3 Oct 2020 05:04:19 -0400 Received: from mail-il1-f207.google.com ([209.85.166.207]:47844 "EHLO mail-il1-f207.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725648AbgJCJER (ORCPT ); Sat, 3 Oct 2020 05:04:17 -0400 Received: by mail-il1-f207.google.com with SMTP id z14so129443ilb.14 for ; Sat, 03 Oct 2020 02:04:15 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=Pdh2OQI0GV4T/rFY4m1WLv9vo8jU4IolNrdujND4j1M=; b=IeDNsHreJY6xZOXP15ZS5EPng/kfG2KGpkNcqmdujlj+rqZ9DQDkY7RunJ2+Ly/8pO bpyLQJykxDUL6C0iCKT75EUVRfWYXlS1hmVCoCI6B2je1oUgdyKc0hjDDCjPy0VzfbfW qgrY7CRb0MClCI8aiYBRtD2E8tfPzamEwRvcqfK9wbfeBJ6NVYhsZIjyuaCGp54+OQ38 Di8yiPNMqd1XyWE0GCtgHQpa/B4IoPAjQ765+LILWPCTUS0A92AbRWwb4r8PjqTCuZTy QDYyZHNhNQNSNvHBw1+G470y1hsI6EskAXI5D9+yMLXGKSmA/LWp3z4J7aUIOBngdFdR r4pQ== X-Gm-Message-State: AOAM532BOSqw5tz9by5REB3YT2JK8RTsKs/MBt8s3F3lS095in/+dhI2 ccgQxV/91wsInOGawmcK/eP2+TPsF0hmvdlqR/IayytMI2W9 X-Google-Smtp-Source: ABdhPJxHM8i64jh0/L4j/WPJNg7f4Q1jCmcPbGIDMQxeZCrqOmDh1S6AoI6ohpz5y4zUeB22PDq9uv2rLIacJp8uODpPtDZFQ70u MIME-Version: 1.0 X-Received: by 2002:a02:712c:: with SMTP id n44mr5831606jac.37.1601715854776; Sat, 03 Oct 2020 02:04:14 -0700 (PDT) Date: Sat, 03 Oct 2020 02:04:14 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008e1e2205b0c08851@google.com> Subject: BUG: corrupted list in rxrpc_put_call From: syzbot To: davem@davemloft.net, dhowells@redhat.com, kuba@kernel.org, linux-afs@lists.infradead.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: fcadab74 Merge tag 'drm-fixes-2020-10-01-1' of git://anong.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=143340a3900000 kernel config: https://syzkaller.appspot.com/x/.config?x=89ab6a0c48f30b49 dashboard link: https://syzkaller.appspot.com/bug?extid=e6326c848f3404ffb673 compiler: gcc (GCC) 10.1.0-syz 20200507 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e6326c848f3404ffb673@syzkaller.appspotmail.com tipc: TX() has been purged, node left! list_del corruption. next->prev should be ffff888000102c38, but was f000ff53f000e2c3 ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:54! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 32547 Comm: kworker/u4:4 Not tainted 5.9.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:__list_del_entry_valid.cold+0x48/0x55 lib/list_debug.c:54 Code: e8 51 9b 9b fd 0f 0b 4c 89 e2 48 89 ee 48 c7 c7 00 b4 d8 88 e8 3d 9b 9b fd 0f 0b 48 89 ee 48 c7 c7 c0 b4 d8 88 e8 2c 9b 9b fd <0f> 0b cc cc cc cc cc cc cc cc cc cc cc 41 57 41 56 41 55 41 54 55 RSP: 0018:ffffc900190ffa20 EFLAGS: 00010286 RAX: 0000000000000054 RBX: ffff888000102c38 RCX: 0000000000000000 RDX: ffff888097a50280 RSI: ffffffff815f59d5 RDI: fffff5200321ff36 RBP: ffff888000102c38 R08: 0000000000000054 R09: ffff8880ae4318e7 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88804e898010 R13: ffff888000000000 R14: ffff888000102c40 R15: 00000000000002b2 FS: 0000000000000000(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000334ea98 CR3: 000000009e10c000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:132 [inline] list_del_init include/linux/list.h:204 [inline] rxrpc_put_call+0x17d/0x300 net/rxrpc/call_object.c:567 rxrpc_discard_prealloc+0x7e2/0xb30 net/rxrpc/call_accept.c:242 rxrpc_listen+0x11c/0x330 net/rxrpc/af_rxrpc.c:245 afs_close_socket+0x95/0x320 fs/afs/rxrpc.c:110 afs_net_exit+0x1c4/0x310 fs/afs/main.c:158 ops_exit_list+0xb0/0x160 net/core/net_namespace.c:186 cleanup_net+0x4ea/0xa00 net/core/net_namespace.c:603 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x3b5/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Modules linked in: ---[ end trace e8b698dc6d68e2dc ]--- RIP: 0010:__list_del_entry_valid.cold+0x48/0x55 lib/list_debug.c:54 Code: e8 51 9b 9b fd 0f 0b 4c 89 e2 48 89 ee 48 c7 c7 00 b4 d8 88 e8 3d 9b 9b fd 0f 0b 48 89 ee 48 c7 c7 c0 b4 d8 88 e8 2c 9b 9b fd <0f> 0b cc cc cc cc cc cc cc cc cc cc cc 41 57 41 56 41 55 41 54 55 RSP: 0018:ffffc900190ffa20 EFLAGS: 00010286 RAX: 0000000000000054 RBX: ffff888000102c38 RCX: 0000000000000000 RDX: ffff888097a50280 RSI: ffffffff815f59d5 RDI: fffff5200321ff36 RBP: ffff888000102c38 R08: 0000000000000054 R09: ffff8880ae4318e7 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88804e898010 R13: ffff888000000000 R14: ffff888000102c40 R15: 00000000000002b2 FS: 0000000000000000(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000334ea98 CR3: 000000009e10c000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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.