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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS 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 707B7C5B576 for ; Fri, 28 Jun 2019 02:47:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4E3242086D for ; Fri, 28 Jun 2019 02:47:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727104AbfF1CrH (ORCPT ); Thu, 27 Jun 2019 22:47:07 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:57252 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726817AbfF1CrH (ORCPT ); Thu, 27 Jun 2019 22:47:07 -0400 Received: by mail-io1-f71.google.com with SMTP id u25so4847823iol.23 for ; Thu, 27 Jun 2019 19:47:07 -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=S+RgQyNmWrZLMaDBL8aUOTR3qZTZHYaiPNOfI1qTD3M=; b=PcBNh8Sekre0jiYvP89gz6OP3cv5wzGYDyXKngHvtHbx3YD4H/QA7AH/u3hfrpJX/b YEmb90WCG1/mKsf111rB35S87cImqLIEUG8DKqVTW6Yx70asr6MRbLks0P+jDTjlM50W ZP2aXSmCeszxEqkabE53GGIqrjs8LCoxoMhuIelZHyBVRKwP/h/8dDdKbD8IwlaeukD2 4JIMtN5m+bGc9o03vb4YM7TsXMlvj2RMps0xjFBmHd2vzVo8tc9gn5iv1ictMmaUP7IC YKQ2QY1UzIDdhDyc2UEbCg6dmfaheQeAAsx31WCU9S59DPbI2iVyN6JmU5euDDkDLCB2 r5ZA== X-Gm-Message-State: APjAAAUHPh2PiiXZu2kyEHSknPHqRpZG/3VK0Dled22fuLDyVPcsbdd6 1icXaNurlmkLzqNCpmyj33P2VHPzsY6SsaSJ2I8KmYmRNw3m X-Google-Smtp-Source: APXvYqyIbGRz8tsJuRDqF26dvZc3RnJeg3tG3iMrWpR/fS5xYq/3rI1hP29uV9YVs6LKutQ0BiynVljMsp44MXnPPT07lLlfHHR0 MIME-Version: 1.0 X-Received: by 2002:a5d:8497:: with SMTP id t23mr8025000iom.298.1561690026810; Thu, 27 Jun 2019 19:47:06 -0700 (PDT) Date: Thu, 27 Jun 2019 19:47:06 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004c2416058c594b30@google.com> Subject: kernel BUG at net/rxrpc/local_object.c:LINE! 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: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 249155c2 Merge branch 'parisc-5.2-4' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14fabe45a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=e7c31a94f66cc0aa dashboard link: https://syzkaller.appspot.com/bug?extid=1e0edc4b8b7494c28450 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13e2738da00000 The bug was bisected to: commit 46894a13599a977ac35411b536fb3e0b2feefa95 Author: David Howells Date: Thu Oct 4 08:32:28 2018 +0000 rxrpc: Use IPv4 addresses throught the IPv6 bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=152fabe3a00000 final crash: https://syzkaller.appspot.com/x/report.txt?x=172fabe3a00000 console output: https://syzkaller.appspot.com/x/log.txt?x=132fabe3a00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+1e0edc4b8b7494c28450@syzkaller.appspotmail.com Fixes: 46894a13599a ("rxrpc: Use IPv4 addresses throught the IPv6") rxrpc: Assertion failed ------------[ cut here ]------------ kernel BUG at net/rxrpc/local_object.c:468! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.2.0-rc6+ #60 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rxrpc_local_rcu net/rxrpc/local_object.c:468 [inline] RIP: 0010:rxrpc_local_rcu.cold+0x11/0x13 net/rxrpc/local_object.c:462 Code: 83 eb 20 e9 74 ff ff ff e8 58 aa 2d fb eb cc 4c 89 ef e8 6e aa 2d fb eb e2 e8 d7 fd f4 fa 48 c7 c7 20 8c 15 88 e8 6f 03 df fa <0f> 0b e8 c4 fd f4 fa 48 c7 c7 20 8c 15 88 e8 5c 03 df fa 0f 0b e8 RSP: 0018:ffff8880a9917c98 EFLAGS: 00010286 RAX: 0000000000000017 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815ad926 RDI: ffffed1015322f85 RBP: ffff8880a9917ca8 R08: 0000000000000017 R09: ffffed1015d260a1 R10: ffffed1015d260a0 R11: ffff8880ae930507 R12: ffff888099033b40 R13: ffff888099033b40 R14: ffffffff867b8f10 R15: ffff8880a9917d28 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f380ebda000 CR3: 000000007ad50000 CR4: 00000000001406e0 Call Trace: __rcu_reclaim kernel/rcu/rcu.h:222 [inline] rcu_do_batch kernel/rcu/tree.c:2092 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2310 [inline] rcu_core+0xba5/0x1500 kernel/rcu/tree.c:2291 __do_softirq+0x25c/0x94c kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:603 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:595 smpboot_thread_fn+0x6a3/0xa30 kernel/smpboot.c:165 kthread+0x354/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 0e784d6285151217 ]--- RIP: 0010:rxrpc_local_rcu net/rxrpc/local_object.c:468 [inline] RIP: 0010:rxrpc_local_rcu.cold+0x11/0x13 net/rxrpc/local_object.c:462 Code: 83 eb 20 e9 74 ff ff ff e8 58 aa 2d fb eb cc 4c 89 ef e8 6e aa 2d fb eb e2 e8 d7 fd f4 fa 48 c7 c7 20 8c 15 88 e8 6f 03 df fa <0f> 0b e8 c4 fd f4 fa 48 c7 c7 20 8c 15 88 e8 5c 03 df fa 0f 0b e8 RSP: 0018:ffff8880a9917c98 EFLAGS: 00010286 RAX: 0000000000000017 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815ad926 RDI: ffffed1015322f85 RBP: ffff8880a9917ca8 R08: 0000000000000017 R09: ffffed1015d260a1 R10: ffffed1015d260a0 R11: ffff8880ae930507 R12: ffff888099033b40 R13: ffff888099033b40 R14: ffffffff867b8f10 R15: ffff8880a9917d28 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f380ebda000 CR3: 000000007ad50000 CR4: 00000000001406e0 --- 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. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches