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_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 C787AC0044C for ; Sat, 3 Nov 2018 15:48:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 766752082E for ; Sat, 3 Nov 2018 15:48:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 766752082E 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-security-module-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727339AbeKDA7o (ORCPT ); Sat, 3 Nov 2018 20:59:44 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:37447 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726828AbeKDA7o (ORCPT ); Sat, 3 Nov 2018 20:59:44 -0400 Received: by mail-io1-f69.google.com with SMTP id w26-v6so5241769ioa.4 for ; Sat, 03 Nov 2018 08:48:03 -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=baVhf6jWaxhwUZUGJ/5iqnEYWigi9vHPwOCWpgXT5lU=; b=HvYidXgpcaGp/Q79FhPcanyXBC1yrw4Sm+bhr6569s2czDvozYBL8tVBa1eB4VDNrM BeqMSvoEfLMvMroqaJm3PhDbz+s5HKUVMXGdddmPfsOcF8IpiRvZdBkNGaurs2sWhWft j4RCuMbLyoIVK0MptZJ8tMFf6Ay6C335F/xXQL3sI0/nrt8tLQ5bxOX3SeMa6gmPTQvE AiSwkhFG5r4mcl6A5CMEPCeMunsP295pAjpD4r+3N8n/jUhYFC+FblOsPnIBluhx0j5c jGQC4SttSUj4UeOiIfqXR5e5Zuv7OxzOvZLxPrV76HOk2F/ahPPdgqfht+9qWerV2D9T OPlg== X-Gm-Message-State: AGRZ1gIWN9bp9XGQl4csV+RN76wx/41t9f2eBrWXpWxtgzOq/k8bzTyl iLBpsd8PQPvkVRi0vlWGmsT4sjfUriQlOKvlKRx0QsZWji65 X-Google-Smtp-Source: AJdET5dXTeDN5zZnIi2Vd4jiPsH5oJ5bXRO9o66u5loZmmWt/Ejr08b5OfI2PzbivAizw7yMN/wry8RWzjwsskdBhwcDy5bppT9K MIME-Version: 1.0 X-Received: by 2002:a24:e181:: with SMTP id n123-v6mr1115547ith.23.1541260083074; Sat, 03 Nov 2018 08:48:03 -0700 (PDT) Date: Sat, 03 Nov 2018 08:48:03 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c220960579c4936d@google.com> Subject: general protection fault in keyctl_pkey_params_get From: syzbot To: dhowells@redhat.com, jmorris@namei.org, keyrings@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, serge@hallyn.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: Hello, syzbot found the following crash on: HEAD commit: 5f21585384a4 Merge tag 'for-linus-20181102' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10ba246d400000 kernel config: https://syzkaller.appspot.com/x/.config?x=9384ecb1c973baed dashboard link: https://syzkaller.appspot.com/bug?extid=a22e0dc07567662c50bc compiler: gcc (GCC) 8.0.1 20180413 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1026dcd5400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=167e882b400000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+a22e0dc07567662c50bc@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: 1 PID: 7247 Comm: syz-executor236 Not tainted 4.19.0+ #317 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:keyctl_pkey_params_parse security/keys/keyctl_pkey.c:56 [inline] RIP: 0010:keyctl_pkey_params_get+0x2e7/0x550 security/keys/keyctl_pkey.c:96 Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f7 01 00 00 4c 8b a4 24 e0 00 00 00 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 e0 01 00 00 41 0f b6 04 24 RSP: 0018:ffff8801ce84faa0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8801ce84fd60 RCX: ffffffff83429990 RDX: 0000000000000000 RSI: ffffffff8342999e RDI: 0000000000000001 RBP: ffff8801ce84fc08 R08: ffff8801ce928480 R09: ffffed0039e73310 R10: ffffed0039e73310 R11: 0000000000000001 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffffffffffff R15: ffffffffffffffff FS: 0000000001e1c880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000414cd0 CR3: 00000001ce5e6000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: keyctl_pkey_params_get_2+0x12f/0x580 security/keys/keyctl_pkey.c:130 kasan: CONFIG_KASAN_INLINE enabled keyctl_pkey_verify+0xaa/0x400 security/keys/keyctl_pkey.c:293 kasan: GPF could be caused by NULL-ptr deref or user memory access __do_sys_keyctl security/keys/keyctl.c:1768 [inline] __se_sys_keyctl security/keys/keyctl.c:1637 [inline] __x64_sys_keyctl+0x101/0x430 security/keys/keyctl.c:1637 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x444c39 Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 2b ce fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffefdd59f88 EFLAGS: 00000286 ORIG_RAX: 00000000000000fa RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000444c39 RDX: 00000000200002c0 RSI: 00000000200000c0 RDI: 000000000000001c RBP: 0000000000000000 R08: 0000000020000380 R09: 00000000004002e0 R10: 00000000fffffd2a R11: 0000000000000286 R12: 0000000000011956 R13: 0000000000401f80 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace e5c46bb5200c69dc ]--- general protection fault: 0000 [#2] PREEMPT SMP KASAN RIP: 0010:keyctl_pkey_params_parse security/keys/keyctl_pkey.c:56 [inline] RIP: 0010:keyctl_pkey_params_get+0x2e7/0x550 security/keys/keyctl_pkey.c:96 CPU: 0 PID: 7401 Comm: syz-executor236 Tainted: G D 4.19.0+ #317 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:keyctl_pkey_params_parse security/keys/keyctl_pkey.c:56 [inline] RIP: 0010:keyctl_pkey_params_get+0x2e7/0x550 security/keys/keyctl_pkey.c:96 Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f7 01 00 00 4c 8b a4 24 e0 00 00 00 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 e0 01 00 00 41 0f b6 04 24 Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f7 01 00 00 4c 8b a4 24 e0 00 00 00 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 e0 01 00 00 41 0f b6 04 24 RSP: 0018:ffff8801c52cfaa0 EFLAGS: 00010246 RAX: 0000000000000002 RBX: ffff8801c52cfd60 RCX: ffffffff83429990 RDX: 0000000000000000 RSI: ffffffff8342999e RDI: 0000000000000001 RBP: ffff8801c52cfc08 R08: ffff8801b8a86000 R09: ffffed0039bb1378 R10: ffffed0039bb1378 R11: 0000000000000001 R12: 0000000000000010 R13: dffffc0000000000 R14: ffffffffffffffff R15: ffffffffffffffff FS: 0000000001e1c880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 RSP: 0018:ffff8801ce84faa0 EFLAGS: 00010246 CR2: 0000000000414cd0 CR3: 00000001ce654000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: RAX: 0000000000000000 RBX: ffff8801ce84fd60 RCX: ffffffff83429990 keyctl_pkey_params_get_2+0x12f/0x580 security/keys/keyctl_pkey.c:130 RDX: 0000000000000000 RSI: ffffffff8342999e RDI: 0000000000000001 keyctl_pkey_verify+0xaa/0x400 security/keys/keyctl_pkey.c:293 RBP: ffff8801ce84fc08 R08: ffff8801ce928480 R09: ffffed0039e73310 R10: ffffed0039e73310 R11: 0000000000000001 R12: 0000000000000000 __do_sys_keyctl security/keys/keyctl.c:1768 [inline] __se_sys_keyctl security/keys/keyctl.c:1637 [inline] __x64_sys_keyctl+0x101/0x430 security/keys/keyctl.c:1637 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 R13: dffffc0000000000 R14: ffffffffffffffff R15: ffffffffffffffff FS: 0000000001e1c880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 entry_SYSCALL_64_after_hwframe+0x49/0xbe CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 RIP: 0033:0x444c39 Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 2b ce fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffefdd59f88 EFLAGS: 00000286 ORIG_RAX: 00000000000000fa RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000444c39 RDX: 00000000200002c0 RSI: 00000000200000c0 RDI: 000000000000001c RBP: 0000000000000000 R08: 0000000020000380 R09: 00000000004002e0 R10: 00000000fffffd2a R11: 0000000000000286 R12: 0000000000011a27 CR2: 0000000000414cd0 CR3: 00000001ce5e6000 CR4: 00000000001406e0 R13: 0000000000401f80 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace e5c46bb5200c69dd ]--- DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 RIP: 0010:keyctl_pkey_params_parse security/keys/keyctl_pkey.c:56 [inline] RIP: 0010:keyctl_pkey_params_get+0x2e7/0x550 security/keys/keyctl_pkey.c:96 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f7 01 00 00 4c 8b a4 24 e0 00 00 00 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 e0 01 00 00 41 0f b6 04 24 --- 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