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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A374C54EBD for ; Mon, 9 Jan 2023 17:15:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236513AbjAIRPv (ORCPT ); Mon, 9 Jan 2023 12:15:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40748 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237300AbjAIRP1 (ORCPT ); Mon, 9 Jan 2023 12:15:27 -0500 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E51BE19C1F for ; Mon, 9 Jan 2023 09:14:42 -0800 (PST) Received: by mail-io1-f72.google.com with SMTP id 16-20020a5d9c10000000b00702de2ee669so4657745ioe.10 for ; Mon, 09 Jan 2023 09:14:42 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=1oGlPuHW58qF3L0UOY+vcORXMzYpH0psnmT6FGtAszg=; b=vyRuOtMyREsJs0McMT4sdnz7/8Pye7FWlYPHufA+HvWawXrM8FHqqjIZ240WUpknDY oLAHvkMo7yNWTNrLsRkaM+8ga5sPvM60ZvrE5NRqe8tUa7Avhr3RoD2u4o94Y/U1kZWg TT+FlH9cPiGjQoPkDikyrsLZa0CQKtRBag/1WQLzbcp7C/PF89SIz7MNEp+kgrAE5d55 KamfwkkjtB3j0uoYo4cyGcBjQJ0kP4+PamVWA4/xmFD/zG2iy2vI1+qH669GZiu/mgcg tp7otMU5WRHf5xf+hPC2JKgOyay55zT/LQQd8q4BZR4r1edt9v7Li3KXcdLkNCs1+Nfe 2orw== X-Gm-Message-State: AFqh2kpul/DQR8uv1yVLWAm9G0Yl6b3kFL5xwvSHbDAzjVzvarmLO5v1 vJuDOIa60BQssF6oKzWDQqujYeW8zyCUQfZOMgM4zMeNcvbD X-Google-Smtp-Source: AMrXdXt68JUNpwYJfz7IuMX4B3V+rbFNsudid2OwfVeGVGNniP0ALunhW/R2JjgVTNEeZnNyy5vdJ00a6gDBEtrFdAFtWf3vK3P8 MIME-Version: 1.0 X-Received: by 2002:a02:23c5:0:b0:38a:590c:f742 with SMTP id u188-20020a0223c5000000b0038a590cf742mr5927517jau.201.1673284480814; Mon, 09 Jan 2023 09:14:40 -0800 (PST) Date: Mon, 09 Jan 2023 09:14:40 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000016552c05f1d7e734@google.com> Subject: [syzbot] [tmpfs?] WARNING in shmem_evict_inode From: syzbot To: akpm@linux-foundation.org, hughd@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, 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: 41c03ba9beea Merge tag 'for_linus' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12fa0b4c480000 kernel config: https://syzkaller.appspot.com/x/.config?x=46221e8203c7aca6 dashboard link: https://syzkaller.appspot.com/bug?extid=3d4aa0d3e784b29b1520 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: i386 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/029f81c97447/disk-41c03ba9.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/02b0f933f93e/vmlinux-41c03ba9.xz kernel image: https://storage.googleapis.com/syzbot-assets/aa82b725810f/bzImage-41c03ba9.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3d4aa0d3e784b29b1520@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 1301 at mm/shmem.c:1175 shmem_evict_inode+0x873/0xb60 mm/shmem.c:1175 Modules linked in: CPU: 0 PID: 1301 Comm: syz-executor.5 Not tainted 6.2.0-rc2-syzkaller-00057-g41c03ba9beea #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:shmem_evict_inode+0x873/0xb60 mm/shmem.c:1175 Code: 89 fe e8 50 2b cd ff 45 85 ff 75 ab e8 96 2e cd ff 48 8b 74 24 18 48 8b 7c 24 20 e8 b7 41 ac ff e9 fc fd ff ff e8 7d 2e cd ff <0f> 0b e9 a0 f8 ff ff e8 71 2e cd ff 4c 89 ea 48 b8 00 00 00 00 00 RSP: 0018:ffffc90000107830 EFLAGS: 00010293 RAX: 0000000000000000 RBX: fffffffffffffda0 RCX: 0000000000000000 RDX: ffff88807e8d57c0 RSI: ffffffff81b423e3 RDI: 0000000000000007 RBP: ffffc90000107928 R08: 0000000000000007 R09: 0000000000000000 R10: fffffffffffffda0 R11: 0000000000000000 R12: ffff88803073b378 R13: ffff88803073b3c8 R14: ffff88803073b2a8 R15: ffff88803073b2b8 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f734d1b0 CR3: 0000000050492000 CR4: 00000000003506f0 Call Trace: evict+0x2ed/0x6b0 fs/inode.c:664 iput_final fs/inode.c:1747 [inline] iput.part.0+0x59b/0x880 fs/inode.c:1773 iput+0x5c/0x80 fs/inode.c:1763 dentry_unlink_inode+0x2b1/0x460 fs/dcache.c:401 __dentry_kill+0x3c0/0x640 fs/dcache.c:607 dentry_kill fs/dcache.c:733 [inline] dput+0x80a/0xdb0 fs/dcache.c:913 __fput+0x3cc/0xa90 fs/file_table.c:328 task_work_run+0x16f/0x270 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xaa8/0x2950 kernel/exit.c:867 do_group_exit+0xd4/0x2a0 kernel/exit.c:1012 get_signal+0x21c3/0x2450 kernel/signal.c:2859 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296 __do_fast_syscall_32+0x72/0xf0 arch/x86/entry/common.c:181 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fd3549 Code: Unable to access opcode bytes at 0xf7fd351f. RSP: 002b:00000000f7fad5cc EFLAGS: 00000296 ORIG_RAX: 0000000000000004 RAX: 000000000001b000 RBX: 0000000000000006 RCX: 00000000200009c0 RDX: 00000000fffffd9d RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 --- 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.