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 34E6CC4360F for ; Sat, 16 Feb 2019 07:01:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0EFCD222DD for ; Sat, 16 Feb 2019 07:01:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728469AbfBPHBV (ORCPT ); Sat, 16 Feb 2019 02:01:21 -0500 Received: from mail-it1-f197.google.com ([209.85.166.197]:35526 "EHLO mail-it1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727729AbfBPHBH (ORCPT ); Sat, 16 Feb 2019 02:01:07 -0500 Received: by mail-it1-f197.google.com with SMTP id m84so20115128ita.0 for ; Fri, 15 Feb 2019 23:01:06 -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=zKl1p0ajRD3ywxiftVearWUgogTF5nrGkZGzKH8oFLI=; b=U9zcxDGymLgmdOqn5HqT9ntQ+zWwobI30dE/UURf1h0T4yVP0W25wEkQ3QacLkuaeP 4abKlUsRdh0fbSTs2kbC2RxdpAe3UlVHGLHosGeXFrDczFbI1Nj5el8IPnw6dhYARFm0 NmgnhDEA4wuiBun+Kt56zFeo02b53/4HoIn7E/Jb8JxzRzB4JFHCJMCKCY/0IY/E5Q6+ iLmQV/umfKz8ZB4umth8EKEhNg6uDwDWbUCKvp8273jScLwsgmAZx9MZtiljrtMhRZKj rhz7ktlqov+6s9xzJdxoZNwzB1o+m0qLTDKfBZ5GAHJnJyB8pf4zNsHVjtCfv7ER3Ni1 +J/g== X-Gm-Message-State: AHQUAuZmNvdXy7uVFSoi773DU6t8Ye9ZaieW4JFfDM+FvYICtb8E1H47 iVztAqiFsMatqADjMYb99BFxjPGOP2HrxkAXBwweymqpxsUp X-Google-Smtp-Source: AHgI3IaKY+V4jyqfphhn1YOx7pAvrFdAfWSVJgzlucoUQCq3MAOK7vAyGJBIQ/mZYphoN0yjQEKFCzXdBuwhMTDHPUpUSnNOPCMd MIME-Version: 1.0 X-Received: by 2002:a24:3a14:: with SMTP id m20mr7866969itm.1.1550300466511; Fri, 15 Feb 2019 23:01:06 -0800 (PST) Date: Fri, 15 Feb 2019 23:01:06 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000009a0bd40581fd747b@google.com> Subject: general protection fault in __vunmap From: syzbot To: davem@davemloft.net, herbert@gondor.apana.org.au, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, steffen.klassert@secunet.com, 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: cb5b020a8d38 Revert "exec: load_script: don't blindly trun.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13c2886cc00000 kernel config: https://syzkaller.appspot.com/x/.config?x=ee434566c893c7b1 dashboard link: https://syzkaller.appspot.com/bug?extid=39d3a56f2f717d237007 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+39d3a56f2f717d237007@syzkaller.appspotmail.com 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: 0 PID: 23956 Comm: syz-executor.3 Not tainted 5.0.0-rc6+ #72 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__vunmap+0x68/0x400 mm/vmalloc.c:1508 Code: 85 e4 0f 85 de 02 00 00 e8 45 c7 d0 ff 4c 89 ef e8 9d 82 ff ff 48 ba 00 00 00 00 00 fc ff df 48 8d 78 48 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 50 03 00 00 4c 8b 60 48 4d 85 e4 0f 84 bd 02 00 RSP: 0018:ffff88809613f4b0 EFLAGS: 00010206 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000009 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: 0000000000000048 RBP: ffff88809613f4f0 R08: 1ffffffff1146d18 R09: fffffbfff1146d19 R10: fffffbfff1146d18 R11: ffffffff88a368c3 R12: 0000000000000000 R13: 0000004e00000000 R14: ffffe8ffffc71948 R15: 0000607f51471948 FS: 00007fa9e49b6700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc7182d2000 CR3: 000000004b7bb000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vfree+0x8d/0x140 mm/vmalloc.c:1597 ipcomp_free_scratches+0xc0/0x150 net/xfrm/xfrm_ipcomp.c:216 ipcomp_free_data net/xfrm/xfrm_ipcomp.c:325 [inline] ipcomp_init_state+0x76d/0xa10 net/xfrm/xfrm_ipcomp.c:377 ipcomp6_init_state+0xc9/0x880 net/ipv6/ipcomp6.c:165 __xfrm_init_state+0x557/0xef0 net/xfrm/xfrm_state.c:2302 xfrm_init_state+0x1e/0x80 net/xfrm/xfrm_state.c:2328 pfkey_msg2xfrm_state net/key/af_key.c:1307 [inline] pfkey_add+0x1da7/0x2fd0 net/key/af_key.c:1524 pfkey_process+0x6d2/0x810 net/key/af_key.c:2844 pfkey_sendmsg+0x40b/0xbe0 net/key/af_key.c:3683 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:631 ___sys_sendmsg+0x3e2/0x930 net/socket.c:2114 __sys_sendmmsg+0x1c3/0x4e0 net/socket.c:2209 __do_sys_sendmmsg net/socket.c:2238 [inline] __se_sys_sendmmsg net/socket.c:2235 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2235 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa9e49b5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0400000000000142 RSI: 0000000020000180 RDI: 0000000000000004 RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa9e49b66d4 R13: 00000000004c4dd8 R14: 00000000004d8a70 R15: 00000000ffffffff Modules linked in: kobject: 'loop4' (00000000647dbe39): kobject_uevent_env kobject: 'loop4' (00000000647dbe39): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (0000000078525e49): kobject_uevent_env kobject: 'kvm' (0000000078525e49): fill_kobj_path: path = '/devices/virtual/misc/kvm' ---[ end trace 25e2186da6a07104 ]--- RIP: 0010:__vunmap+0x68/0x400 mm/vmalloc.c:1508 IPVS: ftp: loaded support on port[0] = 21 Code: 85 e4 0f 85 de 02 00 00 e8 45 c7 d0 ff 4c 89 ef e8 9d 82 ff ff 48 ba 00 00 00 00 00 fc ff df 48 8d 78 48 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 50 03 00 00 4c 8b 60 48 4d 85 e4 0f 84 bd 02 00 kobject: 'kvm' (0000000078525e49): kobject_uevent_env kobject: 'lo' (00000000532a5fa3): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'kvm' (0000000078525e49): fill_kobj_path: path = '/devices/virtual/misc/kvm' RSP: 0018:ffff88809613f4b0 EFLAGS: 00010206 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000009 kobject: 'kvm' (0000000078525e49): kobject_uevent_env kobject: 'lo' (00000000532a5fa3): kobject_uevent_env RDX: dffffc0000000000 RSI: 0000000000000004 RDI: 0000000000000048 kobject: 'kvm' (0000000078525e49): fill_kobj_path: path = '/devices/virtual/misc/kvm' RBP: ffff88809613f4f0 R08: 1ffffffff1146d18 R09: fffffbfff1146d19 kobject: 'lo' (00000000532a5fa3): fill_kobj_path: path = '/devices/virtual/net/lo' R10: fffffbfff1146d18 R11: ffffffff88a368c3 R12: 0000000000000000 R13: 0000004e00000000 R14: ffffe8ffffc71948 R15: 0000607f51471948 kobject: 'loop4' (00000000647dbe39): kobject_uevent_env kobject: 'loop4' (00000000647dbe39): fill_kobj_path: path = '/devices/virtual/block/loop4' FS: 00007fa9e49b6700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 kobject: 'queues' (00000000ae77e0e8): kobject_add_internal: parent: 'lo', set: '' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000070a158 CR3: 000000004b7bb000 CR4: 00000000001406e0 kobject: 'loop5' (00000000975607f3): kobject_uevent_env kobject: 'queues' (00000000ae77e0e8): kobject_uevent_env kobject: 'loop5' (00000000975607f3): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'queues' (00000000ae77e0e8): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (000000002f4df33a): kobject_add_internal: parent: 'queues', set: 'queues' 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#bug-status-tracking for how to communicate with syzbot.