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 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 6410EC282D8 for ; Wed, 30 Jan 2019 14:03:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3A66420844 for ; Wed, 30 Jan 2019 14:03:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730905AbfA3ODF (ORCPT ); Wed, 30 Jan 2019 09:03:05 -0500 Received: from mail-it1-f197.google.com ([209.85.166.197]:35614 "EHLO mail-it1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726233AbfA3ODF (ORCPT ); Wed, 30 Jan 2019 09:03:05 -0500 Received: by mail-it1-f197.google.com with SMTP id v188so18740311ita.0 for ; Wed, 30 Jan 2019 06:03:04 -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=WMHcGiKFsUeQeZvwHOAs2UVlqtzrvpVZ1Nuxx8Ua6dI=; b=KEQM3kDz7MG6FqpsJHQpM7hRY2Hj4HN9PTrT+7+tvCYKahRh5SnUzViEEV3Uz56jS4 N4ABIQYiuRkMS3Zd3vLVxyPTzduv/BsSxEjem4OQngPUz85Sbx2UVqPEbcROueBRvXNe JRuOI2s815Sl5uBPtF7GD6Uxv5ikBiV6rwd9ut6XOqQf/O3p6unYElEfCzH3FW56IwVN kbtTA8+PlqVECMAnzmqXG4BLluMkHsLWxZXUNviN+M7kh450DsS4PKihBgcsijAqfHmm ZBS/YIlJU14PamH7oOYVWN9s2AEheQI0G4NsaqD0daO11t0ryoSR0QDbqgXroHt0G8eU NrHQ== X-Gm-Message-State: AHQUAuZMNyzpcxPcQ/ZUJB9FBptLXz6UyTnNi/6r251FQ2vaQujh7jpu 2eH5qZN68/9SYQjSJ2S5o9WDOhceRYkM8AMMDgAGbHDE1RAV X-Google-Smtp-Source: AHgI3IbLCw9Xg0IccVFWA+oFbi471+eenRcYBBt0ygEaUXIQVEF1lDvCEngijIEiuDXT+FpFlAwbv/XmCk1Qk13EGru4yvTzt72T MIME-Version: 1.0 X-Received: by 2002:a24:1d01:: with SMTP id 1mr6040872itj.39.1548856983917; Wed, 30 Jan 2019 06:03:03 -0800 (PST) Date: Wed, 30 Jan 2019 06:03:03 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000559d460580ad5eeb@google.com> Subject: general protection fault in __sock_release (2) From: syzbot To: davem@davemloft.net, 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: 30e5c2c6bf28 net: Revert devlink health changes. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=1249a2b8c00000 kernel config: https://syzkaller.appspot.com/x/.config?x=505743eba4e4f68 dashboard link: https://syzkaller.appspot.com/bug?extid=38b29941610a1cc735dc 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+38b29941610a1cc735dc@syzkaller.appspotmail.com bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8762 Comm: syz-executor0 Not tainted 5.0.0-rc3+ #21 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__sock_release+0x2d/0x250 net/socket.c:574 Code: e5 41 57 41 56 41 55 41 54 49 89 f4 53 48 89 fb e8 38 d4 6c fb 4c 8d 73 28 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 b1 01 00 00 4c 8b 6b 28 4d 85 ed 0f 84 c7 00 00 RSP: 0018:ffff8880a53bf8f8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005ff4000 RDX: 0000000000000005 RSI: ffffffff86152ab8 RDI: 0000000000000000 RBP: ffff8880a53bf920 R08: ffff8880a51e2500 R09: fffffbfff1462b55 R10: fffffbfff1462b54 R11: ffffffff8a315aa7 R12: 0000000000000000 R13: 0000000000000007 R14: 0000000000000028 R15: ffff88809fc0eb88 FS: 00007fabf4208700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000402e9d CR3: 00000000a585c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sock_release+0x18/0x20 net/socket.c:598 inet_ctl_sock_destroy include/net/inet_common.h:56 [inline] icmp_sk_exit+0x11f/0x1f0 net/ipv4/icmp.c:1187 ops_exit_list.isra.0+0xb0/0x160 net/core/net_namespace.c:153 setup_net+0x4b2/0x8c0 net/core/net_namespace.c:331 copy_net_ns+0x2ae/0x4b0 net/core/net_namespace.c:437 create_new_namespaces+0x4ce/0x930 kernel/nsproxy.c:107 unshare_nsproxy_namespaces+0xc2/0x200 kernel/nsproxy.c:206 ksys_unshare+0x6d7/0xfb0 kernel/fork.c:2550 __do_sys_unshare kernel/fork.c:2618 [inline] __se_sys_unshare kernel/fork.c:2616 [inline] __x64_sys_unshare+0x31/0x40 kernel/fork.c:2616 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458099 Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fabf4207c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000458099 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fabf42086d4 R13: 00000000004c6de4 R14: 00000000004dc408 R15: 00000000ffffffff Modules linked in: ---[ end trace 320ccc001dc11318 ]--- RIP: 0010:__sock_release+0x2d/0x250 net/socket.c:574 Code: e5 41 57 41 56 41 55 41 54 49 89 f4 53 48 89 fb e8 38 d4 6c fb 4c 8d 73 28 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 b1 01 00 00 4c 8b 6b 28 4d 85 ed 0f 84 c7 00 00 RSP: 0018:ffff8880a53bf8f8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005ff4000 RDX: 0000000000000005 RSI: ffffffff86152ab8 RDI: 0000000000000000 RBP: ffff8880a53bf920 R08: ffff8880a51e2500 R09: fffffbfff1462b55 R10: fffffbfff1462b54 R11: ffffffff8a315aa7 R12: 0000000000000000 R13: 0000000000000007 R14: 0000000000000028 R15: ffff88809fc0eb88 FS: 00007fabf4208700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000402e9d CR3: 00000000a585c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This bug is generated by a bot. 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