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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 41018C31E40 for ; Fri, 9 Aug 2019 11:06:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 17A192084D for ; Fri, 9 Aug 2019 11:06:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406470AbfHILGK (ORCPT ); Fri, 9 Aug 2019 07:06:10 -0400 Received: from mail-ot1-f71.google.com ([209.85.210.71]:41814 "EHLO mail-ot1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2406272AbfHILGJ (ORCPT ); Fri, 9 Aug 2019 07:06:09 -0400 Received: by mail-ot1-f71.google.com with SMTP id a8so67969208oti.8 for ; Fri, 09 Aug 2019 04:06:08 -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=zVTRlB/x5YQjuHlXNkGeEct8hD4cekTY0n9YojkyFDU=; b=njUAqIWdjbL8sSE83GSY/bSwBWrxV9VzllBIwHJLofR8RmAa3KcdxzhBK5u8gBbmJW x+87MuzneJ7IUOP03bfygi+GLTdTwComiWlTLlxGJ7tSyH/qctJBJAopvK3pYhGtFmWN pNwfrvv0Laj93chR7frulJehK2FA4qOu6cFucbVzj3hvdclFeHdxAo7c3ipMZoZBKKfV R0L6O+obklXkt+PCe3T3gNswEWhyz+S/0PFkVKsk0JJBJ/Hws1Vasw+5cW5Hc92FMxin mnOVxubJDpH2V7+LxmkjE45IictKgJTPGt9eL0d+RDKdgrCTX7bYiBjxf9vve9AftEXF HoKg== X-Gm-Message-State: APjAAAUmy2j87MDeddfox+ZXhUmYNGESa7SwyFM+eNtfOD61QiMREjij ZV/0z8XBxk5zFsF9GChg2/ZzjSnzfHmTZxNoaFqKvboAa5HQ X-Google-Smtp-Source: APXvYqy3Q85weNwM4JYCgJFzoo+N1LJJCD2xUNX+lEyYV85+yaBrOpyhVocQSVRI2cA+GCFcEH9eK0j49dfHLsOIwiLTUmuXkheu MIME-Version: 1.0 X-Received: by 2002:a02:4e05:: with SMTP id r5mr22339509jaa.27.1565348768322; Fri, 09 Aug 2019 04:06:08 -0700 (PDT) Date: Fri, 09 Aug 2019 04:06:08 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000492086058fad2979@google.com> Subject: BUG: corrupted list in rxrpc_local_processor From: syzbot To: davem@davemloft.net, dhowells@redhat.com, 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"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 87b983f5 Add linux-next specific files for 20190809 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=161309c2600000 kernel config: https://syzkaller.appspot.com/x/.config?x=28eea330e11df0eb dashboard link: https://syzkaller.appspot.com/bug?extid=193e29e9387ea5837f1d compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+193e29e9387ea5837f1d@syzkaller.appspotmail.com list_del corruption. prev->next should be ffff8880a4570da0, but was ffff88808c74b6e0 ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:51! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.3.0-rc3-next-20190809 #63 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: krxrpcd rxrpc_local_processor RIP: 0010:__list_del_entry_valid.cold+0xf/0x4f lib/list_debug.c:51 Code: e8 f9 73 1d fe 0f 0b 48 89 f1 48 c7 c7 c0 6f e6 87 4c 89 e6 e8 e5 73 1d fe 0f 0b 4c 89 f6 48 c7 c7 60 71 e6 87 e8 d4 73 1d fe <0f> 0b 4c 89 ea 4c 89 f6 48 c7 c7 a0 70 e6 87 e8 c0 73 1d fe 0f 0b RSP: 0018:ffff8880a9a47cc0 EFLAGS: 00010286 RAX: 0000000000000054 RBX: ffff8880a4570db8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815bb706 RDI: ffffed1015348f8a RBP: ffff8880a9a47cd8 R08: 0000000000000054 R09: ffffed1015d260d9 R10: ffffed1015d260d8 R11: ffff8880ae9306c7 R12: ffff888074400878 R13: ffff888074400878 R14: ffff8880a4570da0 R15: ffff88809509e580 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000400200 CR3: 000000006f1ac000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:131 [inline] list_del_init include/linux/list.h:190 [inline] rxrpc_local_destroyer net/rxrpc/local_object.c:427 [inline] rxrpc_local_processor+0x251/0x830 net/rxrpc/local_object.c:463 process_one_work+0x9af/0x1740 kernel/workqueue.c:2269 worker_thread+0x98/0xe40 kernel/workqueue.c:2415 kthread+0x361/0x430 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace c8e00778000f001d ]--- RIP: 0010:__list_del_entry_valid.cold+0xf/0x4f lib/list_debug.c:51 Code: e8 f9 73 1d fe 0f 0b 48 89 f1 48 c7 c7 c0 6f e6 87 4c 89 e6 e8 e5 73 1d fe 0f 0b 4c 89 f6 48 c7 c7 60 71 e6 87 e8 d4 73 1d fe <0f> 0b 4c 89 ea 4c 89 f6 48 c7 c7 a0 70 e6 87 e8 c0 73 1d fe 0f 0b RSP: 0018:ffff8880a9a47cc0 EFLAGS: 00010286 RAX: 0000000000000054 RBX: ffff8880a4570db8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815bb706 RDI: ffffed1015348f8a RBP: ffff8880a9a47cd8 R08: 0000000000000054 R09: ffffed1015d260d9 R10: ffffed1015d260d8 R11: ffff8880ae9306c7 R12: ffff888074400878 R13: ffff888074400878 R14: ffff8880a4570da0 R15: ffff88809509e580 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32f22000 CR3: 000000006f1ac000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This bug 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 bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.