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 7B738ECDFB8 for ; Tue, 17 Jul 2018 23:49:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 322182075C for ; Tue, 17 Jul 2018 23:49:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 322182075C 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 S1729973AbeGRAYD (ORCPT ); Tue, 17 Jul 2018 20:24:03 -0400 Received: from mail-io0-f198.google.com ([209.85.223.198]:48965 "EHLO mail-io0-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729714AbeGRAYD (ORCPT ); Tue, 17 Jul 2018 20:24:03 -0400 Received: by mail-io0-f198.google.com with SMTP id t11-v6so2091606iog.15 for ; Tue, 17 Jul 2018 16:49:02 -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=yjFXioZiecqrS62NUXaWxnKhEuWU3pvlM8mzdn3PlvM=; b=GJh1QM0SQDX2OOSv+kil6lQMFibp0q7I081d6sxv6y4C7aJLO+mAirtm8oB0wMJC1C nHthXpbTKIbb+OAmAkjryDo0TOxtBZ0vgSLWj1lkCX5+g1G/JkJUvnSLrDY7ev9GgFPd v9iXAZEy0J57dMB2SI+CccbynvDqE45PYH4JtsDGcjjZv97cpMn0VCQ1zTdP0Jw+4i6+ fynQIFfa5BChmU4bg9HFQOLp195c5y06YSFJrhE5gqQBTPdOwhQonxAARH2rBTGzQuUD CE9a07tJdov7SM6lUaNDwMbutvcQFtFiBS+gNs2+Ewiy4Df6DsryFtjDoIBOibVWxQYc Yrlw== X-Gm-Message-State: AOUpUlFVRXabw5rnUd9MfklWBF6bL0Jj5sSa5zRLSbNgzJmf+kL8/Uhj 5lrwGcmkDLxxqMRuDPzKo92Oxtr3Rew5Q111hpszQnTQ9MEW X-Google-Smtp-Source: AAOMgpcHGU1jSlOMmFb8gQpBbKuv+DgugfMdnjwSuAnEByuRiXtGbH2nEJocp811cMPfJ6OFJ44QcVOwYig7XzPFrweOQeaJDEvK MIME-Version: 1.0 X-Received: by 2002:a6b:7114:: with SMTP id q20-v6mr1562666iog.4.1531871342183; Tue, 17 Jul 2018 16:49:02 -0700 (PDT) Date: Tue, 17 Jul 2018 16:49:02 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000314acf05713a97f9@google.com> Subject: general protection fault in process_init_reply From: syzbot To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, miklos@szeredi.hu, 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: 1dcbe5f2c615 Add linux-next specific files for 20180717 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=148aac44400000 kernel config: https://syzkaller.appspot.com/x/.config?x=ea5926dddb0db97a dashboard link: https://syzkaller.appspot.com/bug?extid=b62f08f4d5857755e3bc compiler: gcc (GCC) 8.0.1 20180413 (experimental) syzkaller repro:https://syzkaller.appspot.com/x/repro.syz?x=143725d0400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=120ef3b2400000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+b62f08f4d5857755e3bc@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] SMP KASAN CPU: 0 PID: 17978 Comm: syz-executor367 Not tainted 4.18.0-rc5-next-20180717+ #9 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:process_init_reply+0xedc/0x1500 fs/fuse/inode.c:923 Code: 0f 95 c0 84 c2 0f 85 65 05 00 00 49 8d be 00 01 00 00 80 8b e9 01 00 00 06 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 32 05 00 00 49 c7 86 00 01 00 00 a0 7f 16 89 41 RSP: 0018:ffff8801a97cf478 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8801cdfdfb40 RCX: 0000000000000001 RDX: 0000000000000020 RSI: ffffffff826e5a3d RDI: 0000000000000100 RBP: ffff8801a97cf4b0 R08: ffff8801b2a625c0 R09: ffffed0039cd05da R10: ffffed0039cd05da R11: ffff8801ce682ed3 R12: ffff8801ce682e00 R13: ffff8801cdfdfd29 R14: 0000000000000000 R15: ffff8801cdfdfd25 FS: 00007f7f6d9b8700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7f6d9d8e78 CR3: 00000001d64ed000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: request_end+0x3de/0xb20 fs/fuse/dev.c:402 fuse_dev_do_read.isra.25+0xf21/0x1960 fs/fuse/dev.c:1316 fuse_dev_read+0x1a9/0x250 fs/fuse/dev.c:1349 call_read_iter include/linux/fs.h:1820 [inline] new_sync_read fs/read_write.c:406 [inline] __vfs_read+0x6ac/0x9b0 fs/read_write.c:418 vfs_read+0x17f/0x3c0 fs/read_write.c:452 ksys_read+0x101/0x260 fs/read_write.c:578 __do_sys_read fs/read_write.c:588 [inline] __se_sys_read fs/read_write.c:586 [inline] __x64_sys_read+0x73/0xb0 fs/read_write.c:586 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x445f69 Code: e8 ac e7 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 fb 0d fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7f6d9b7da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00000000006dbc3c RCX: 0000000000445f69 RDX: 0000000000001000 RSI: 0000000020001000 RDI: 0000000000000006 RBP: 00000000006dbc38 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e R13: 64695f70756f7267 R14: 65646f6d746f6f72 R15: 0000000000000007 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace d538f9cc84504f57 ]--- RIP: 0010:process_init_reply+0xedc/0x1500 fs/fuse/inode.c:923 Code: 0f 95 c0 84 c2 0f 85 65 05 00 00 49 8d be 00 01 00 00 80 8b e9 01 00 00 06 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 32 05 00 00 49 c7 86 00 01 00 00 a0 7f 16 89 41 RSP: 0018:ffff8801a97cf478 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8801cdfdfb40 RCX: 0000000000000001 RDX: 0000000000000020 RSI: ffffffff826e5a3d RDI: 0000000000000100 RBP: ffff8801a97cf4b0 R08: ffff8801b2a625c0 R09: ffffed0039cd05da R10: ffffed0039cd05da R11: ffff8801ce682ed3 R12: ffff8801ce682e00 R13: ffff8801cdfdfd29 R14: 0000000000000000 R15: ffff8801cdfdfd25 FS: 00007f7f6d9b8700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7f6d9d8e78 CR3: 00000001d64ed000 CR4: 00000000001406f0 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. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches