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=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 CE20DC4320A for ; Fri, 30 Jul 2021 23:48:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B364D60F9B for ; Fri, 30 Jul 2021 23:48:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234280AbhG3Xsc (ORCPT ); Fri, 30 Jul 2021 19:48:32 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:36758 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234248AbhG3Xsb (ORCPT ); Fri, 30 Jul 2021 19:48:31 -0400 Received: by mail-io1-f71.google.com with SMTP id k20-20020a6b6f140000b029053817be16cdso6762518ioc.3 for ; Fri, 30 Jul 2021 16:48:25 -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=XOreqIcoTN1CtO7Rz4sC/ft2790hKcx+mUxiRxZRZCU=; b=oQMNmHi+q04+GEuN9dqoeyy6QhWkJRiSKpp9ibp5QG2XyNg56ffYDS1uu2sIsoMWCR xGao8qoKbiBvPTISmuWTl4g6DcInmRKtPPdAPCgBJ+UdcjCJU0cxzoXQTVlvhQQR2bnJ niuJFWT7lnNFBmhPOSib9uMOVGPfpoAxxJAm85fMYcxd5Fow3Gv7m62v4RcEKvwnDb/w HMbGU4sodtwcHhfAftn71hLDteLdUyj2tldsPKQDu6e2IDTS/PwUU6IWqsfM4v+oxQqS cBFyPLhVlhiNXM9EheMukbfjXDj4aw5sYUiIcNTKlo6Tade4c2wpG7AJlqm3lfHknTxP hO1A== X-Gm-Message-State: AOAM532pihpHHuP+5i1pw/Jb4pk5wWSD/9LwJmHfK+x3FCWRo5mgF1/R 0Td/dTU2FRwMXRmAxmcuqDjBfXFgOIO4g3N0WxuyxnrNlyoj X-Google-Smtp-Source: ABdhPJzTEADX6ZN4Z6+YdAIXInK+cyRyXLX6x1dyM7YnnZMD8vZl09oNarbHWppt9RORDy6snaHPuMUp9NvxnrGuTbgzUwMgvl1C MIME-Version: 1.0 X-Received: by 2002:a05:6638:418f:: with SMTP id az15mr4146349jab.8.1627688905321; Fri, 30 Jul 2021 16:48:25 -0700 (PDT) Date: Fri, 30 Jul 2021 16:48:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000001b19a05c85fdb77@google.com> Subject: [syzbot] WARNING in fuse_get_tree 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" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 2265c5286967 Add linux-next specific files for 20210726 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=102c92b6300000 kernel config: https://syzkaller.appspot.com/x/.config?x=531dbd796dcea4b4 dashboard link: https://syzkaller.appspot.com/bug?extid=afacc3ce1215afa24615 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14d97fca300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=174a53f8300000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+afacc3ce1215afa24615@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8483 at fs/fuse/inode.c:1595 fuse_get_tree+0x2eb/0x3f0 fs/fuse/inode.c:1595 Modules linked in: CPU: 1 PID: 8483 Comm: syz-executor536 Not tainted 5.14.0-rc3-next-20210726-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fuse_get_tree+0x2eb/0x3f0 fs/fuse/inode.c:1595 Code: df 48 8b 85 78 03 00 00 48 89 f9 48 c1 e9 03 80 3c 11 00 0f 85 e8 00 00 00 4c 8b ad 80 03 00 00 4c 39 e8 74 29 e8 05 25 c8 fe <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 80 3c 02 RSP: 0018:ffffc9000d6e7d40 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8880269e6780 RCX: 0000000000000000 RDX: ffff888035118000 RSI: ffffffff82ada24b RDI: ffff8880169b6028 RBP: ffff8880360d3800 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff82ada0de R11: 0000000000000000 R12: ffff88802ada7c00 R13: ffff8880145fe800 R14: ffff8880269e6788 R15: ffff8880360d3b78 FS: 0000000000b25300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4fd309fc08 CR3: 0000000027619000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vfs_get_tree+0x89/0x2f0 fs/super.c:1498 do_new_mount fs/namespace.c:2905 [inline] path_mount+0x132a/0x1fa0 fs/namespace.c:3235 do_mount fs/namespace.c:3248 [inline] __do_sys_mount fs/namespace.c:3456 [inline] __se_sys_mount fs/namespace.c:3433 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3433 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x43f329 Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcdd911e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 000000000043f329 RDX: 0000000020002100 RSI: 00000000200020c0 RDI: 0000000000000000 RBP: 0000000000403080 R08: 0000000020002140 R09: 0000000000400488 R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000403110 R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488 --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches