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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8969DC43217 for ; Tue, 8 Nov 2022 12:04:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233820AbiKHMEz (ORCPT ); Tue, 8 Nov 2022 07:04:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57296 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233298AbiKHMEw (ORCPT ); Tue, 8 Nov 2022 07:04:52 -0500 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 350A5624D for ; Tue, 8 Nov 2022 04:04:50 -0800 (PST) Received: by mail-io1-f69.google.com with SMTP id bf14-20020a056602368e00b006ce86e80414so8996767iob.7 for ; Tue, 08 Nov 2022 04:04:49 -0800 (PST) X-Google-DKIM-Signature: v=1; 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charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 91c596cc8d32 Merge branch 'net-txgbe-fix-two-bugs-in-txgbe.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=10cf5b96880000 kernel config: https://syzkaller.appspot.com/x/.config?x=155594ab86a8ef7a dashboard link: https://syzkaller.appspot.com/bug?extid=85e47e1a08b3e159b159 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/811c994625c9/disk-91c596cc.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/bf46bee439d4/vmlinux-91c596cc.xz kernel image: https://storage.googleapis.com/syzbot-assets/c005328dcdaa/bzImage-91c596cc.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+85e47e1a08b3e159b159@syzkaller.appspotmail.com netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 56 at net/core/devlink.c:9998 devl_port_unregister+0x2f6/0x390 net/core/devlink.c:9998 Modules linked in: CPU: 1 PID: 56 Comm: kworker/u4:4 Not tainted 6.1.0-rc3-syzkaller-00810-g91c596cc8d32 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: netns cleanup_net RIP: 0010:devl_port_unregister+0x2f6/0x390 net/core/devlink.c:9998 Code: e8 0f 39 0b fa 85 ed 0f 85 7a fd ff ff e8 32 3c 0b fa 0f 0b e9 6e fd ff ff e8 26 3c 0b fa 0f 0b e9 53 ff ff ff e8 1a 3c 0b fa <0f> 0b e9 94 fd ff ff e8 7e ae 57 fa e9 78 ff ff ff e8 44 ae 57 fa RSP: 0018:ffffc90001577a08 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8880736c0810 RCX: 0000000000000000 RDX: ffff8880183c8000 RSI: ffffffff87717606 RDI: 0000000000000005 RBP: 0000000000000002 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000000 R12: ffff8880736c0810 R13: ffff8880736c0808 R14: ffff88806f2c7800 R15: ffff8880736c0800 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bd232a4068 CR3: 000000001f12c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __nsim_dev_port_del+0x1bb/0x240 drivers/net/netdevsim/dev.c:1433 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1443 [inline] nsim_dev_reload_destroy+0x171/0x510 drivers/net/netdevsim/dev.c:1660 nsim_dev_reload_down+0x6b/0xd0 drivers/net/netdevsim/dev.c:968 devlink_reload+0x1c2/0x6b0 net/core/devlink.c:4501 devlink_pernet_pre_exit+0x104/0x1c0 net/core/devlink.c:12609 ops_pre_exit_list net/core/net_namespace.c:159 [inline] cleanup_net+0x451/0xb10 net/core/net_namespace.c:594 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 --- 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.