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=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 9F20CC43441 for ; Wed, 14 Nov 2018 07:18:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 707BE223DD for ; Wed, 14 Nov 2018 07:18:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 707BE223DD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731811AbeKNRUH (ORCPT ); Wed, 14 Nov 2018 12:20:07 -0500 Received: from mail-it1-f197.google.com ([209.85.166.197]:41057 "EHLO mail-it1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728686AbeKNRUG (ORCPT ); Wed, 14 Nov 2018 12:20:06 -0500 Received: by mail-it1-f197.google.com with SMTP id s195-v6so19882807itc.6 for ; Tue, 13 Nov 2018 23:18:07 -0800 (PST) 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=Y/yWg3YYGycwr3bmHMHa6kV/M3YgU5C4ix25R3xyHjM=; b=EnJtqJ2UIT/K7KoVBt0IHFjMJnhVdERXQ0p9UxI0YJMs7OnVhwrt06UkSqvvXRgWDz zkUw00gs5B8nozQfICGW6iVnvETOXBfp6e6vbzVYd7Z7kzdniqO05G6IA8dYkEKEpO8G 2lwQ8kmTPIusUrkkBMvj6qsuHG4YjKxxTBFLPM4onDHh77BtMVeml4YJ9ROATY+rV06U khHsV+XpvJ3dW4a/QnwQuHLEeoNi9zg5m0UlOebmI8sZQCWoXixzL5FUZZMbz4huRA57 hkYXux5XWQ+9R1bW3moMPsExTbRIXpL0v6sELEN+hwwS4krkJ9ny0PA1gooN2D/kxTdD XxWw== X-Gm-Message-State: AGRZ1gJ4hGfBvWm9onVRmMLX7veD3j2GTupr4jgN+pOXXQu3nbC8exoc RXLN0pWl5PlkKNxnzmYHtWCbO5FBUgqrd8QQ9yFppRO1a3xX X-Google-Smtp-Source: AJdET5fu8AlgtZKiN43cqDmRdnxUh75ea8ZBjEWcgcQi/eEGE0iEWo8c9W4jp6AAoFSjqYHsXd03X8FpSSGG1yr95VIR/ZHwxNkm MIME-Version: 1.0 X-Received: by 2002:a24:4597:: with SMTP id c23mr748646itd.20.1542179887212; Tue, 13 Nov 2018 23:18:07 -0800 (PST) Date: Tue, 13 Nov 2018 23:18:07 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005b7456057a9abc57@google.com> Subject: kernel BUG at mm/slab.c:LINE! (3) From: syzbot To: linux-kernel@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: 3e536cff3424 net: phy: check if advertising is zero using .. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=16f95b83400000 kernel config: https://syzkaller.appspot.com/x/.config?x=4a0a89f12ca9b0f5 dashboard link: https://syzkaller.appspot.com/bug?extid=2182db487a523d86bf34 compiler: gcc (GCC) 8.0.1 20180413 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=148d46d5400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15c6a225400000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+2182db487a523d86bf34@syzkaller.appspotmail.com ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(depth >= MAX_LOCK_DEPTH) ------------[ cut here ]------------ kernel BUG at mm/slab.c:4425! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: -642842048 Comm: ksoftirqd/0 Not tainted 4.20.0-rc2+ #294 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__check_heap_object+0xa7/0xb5 mm/slab.c:4450 Code: 48 c7 c7 15 73 12 89 e8 97 e3 0a 00 5d c3 41 8b 91 04 01 00 00 48 29 c7 48 39 d7 77 be 48 01 d0 48 29 c8 48 39 f0 72 b3 5d c3 <0f> 0b 48 c7 c7 15 73 12 89 e8 fd eb 0a 00 44 89 e9 48 c7 c7 d0 73 RSP: 0018:ffff8881d9af0030 EFLAGS: 00010093 RAX: 00000000000a57eb RBX: 1ffff1103b35e00d RCX: 000000000000000c RDX: ffff8881d9af0240 RSI: 0000000000000002 RDI: ffff8881d9af01d8 RBP: ffff8881d9af0030 R08: ffff8881d9af0240 R09: ffff8881da970180 R10: 000000004afd69e7 R11: 0000000000000000 R12: ffff8881d9af01d8 R13: 0000000000000002 R14: ffffea000766bc00 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000068 CR3: 00000001bb987000 CR4: 00000000001406f0 Call Trace: Modules linked in: ---[ end trace 1c9eb38e9e38ee03 ]--- RIP: 0010:__check_heap_object+0xa7/0xb5 mm/slab.c:4450 Code: 48 c7 c7 15 73 12 89 e8 97 e3 0a 00 5d c3 41 8b 91 04 01 00 00 48 29 c7 48 39 d7 77 be 48 01 d0 48 29 c8 48 39 f0 72 b3 5d c3 <0f> 0b 48 c7 c7 15 73 12 89 e8 fd eb 0a 00 44 89 e9 48 c7 c7 d0 73 RSP: 0018:ffff8881d9af0030 EFLAGS: 00010093 RAX: 00000000000a57eb RBX: 1ffff1103b35e00d RCX: 000000000000000c RDX: ffff8881d9af0240 RSI: 0000000000000002 RDI: ffff8881d9af01d8 RBP: ffff8881d9af0030 R08: ffff8881d9af0240 R09: ffff8881da970180 R10: 000000004afd69e7 R11: 0000000000000000 R12: ffff8881d9af01d8 R13: 0000000000000002 R14: ffffea000766bc00 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000068 CR3: 00000001bb987000 CR4: 00000000001406f0 --- 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#bug-status-tracking for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches