From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9D7EA38F for ; Sat, 20 Jan 2024 00:10:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705709430; cv=none; b=C5rCaIlDCfjqbEUWkMXoLFui5Rh1a7yktHRoWJvb3VqAQgyjq8oWHgedtRRpGRQOoOh5vxoyMR9mmktEFaSOxRCdCipfylzSaPrO0INl18pnOp28IxP9D/QXL/iAD9dge4GKUb8MR4iO/IubWM+C2qG+hlQdMwGCJUJfXKCvgUY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705709430; c=relaxed/simple; bh=TpjuO+9hturNxfceTgvrYXC0vPl+mUZKkcYoB4KY7qE=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=NI2Z9JwAl+in3LwgSUh+ACtHDMxWFS+FZrViMHn5aMOKVnyg/i8bXGfqL/a8TLI0dZtDb4+XYnqBs5qgiutWlU4VIyz5IhKzTSB23eAXYp9K8WS44glbD0moUhxtGQZXZMmcTgVWj2nm8vBO2HmdKQB3ddpN8jyflQbH6P8WZTo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-7baa6cc3af2so140927139f.2 for ; Fri, 19 Jan 2024 16:10:28 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705709427; x=1706314227; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=dhkNMjQVOB5HvLrNxJgMnjKkdtuka8k8P2aFjXPVvzg=; b=LDllB28l+wtZoryazp/Sd2p45txqqlkmxxsvb6VENxo21/BwtM30Ge/Kx7BP6J7aJ0 R7QXgnnperkq1xAbZb8bkHN/Dt6RBa0aoxuYY5aPfSZHjJXabpzpJ5YG0ibw+vBfCJB4 JnlvlIuzuVDitRq1TRQBMyMAEOjZY0+7ghIy4PV/rcfS+Kmk7Q8KWHbUfXqjgYiqHE7x rvWtGISMILubJq9ltpkRHTRdolkvRaeD6KLWLCI0bHZBGA8rQuwp/IsQH4T9AfaDhyYn a+hZziEpXqOMmiLKedthLlG4cSQeEEou2mMjd3mAw3hlHs4xm2vbUe5TPHt2qQOvQl1I KswQ== X-Gm-Message-State: AOJu0YyLFTnacAxXPrbdrmInl9XTYmMgoid9ubJ4jGP101MrOwYVbjW6 /xQ85k3mXM+UAzUgbSqCDruDLF93ivZxl6YWALTadS7TMAtVKNsosTuJmXo6gxv0nEPZwm+1n1r vlEmZKcISBttHhvzf+R+qsHnGlJR+38C7fVIKK5Cz099TwVAjkK+pfas= X-Google-Smtp-Source: AGHT+IENlsaqQKmpztFNm40psPASW8ds8BZji2cekHi1ejZbY6Utl5GS1rYK1eLJPnwVvvZEsLuQGlmA+UtjdZMb0e2EtvWmmk+R Precedence: bulk X-Mailing-List: gfs2@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:b4a:b0:360:17a7:d897 with SMTP id f10-20020a056e020b4a00b0036017a7d897mr63312ilu.4.1705709427780; Fri, 19 Jan 2024 16:10:27 -0800 (PST) Date: Fri, 19 Jan 2024 16:10:27 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000887374060f556c07@google.com> Subject: [syzbot] [gfs2?] kernel BUG in qd_put (2) From: syzbot To: agruenba@redhat.com, gfs2@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 052d534373b7 Merge tag 'exfat-for-6.8-rc1' of git://git.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1262e4b5e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=878a2a4af11180a7 dashboard link: https://syzkaller.appspot.com/bug?extid=43ad5525e32c939e3f22 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: i386 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-052d5343.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/35f5d1189e2a/vmlinux-052d5343.xz kernel image: https://storage.googleapis.com/syzbot-assets/0405012bdefc/bzImage-052d5343.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+43ad5525e32c939e3f22@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at fs/gfs2/quota.c:336! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 5207 Comm: syz-executor.0 Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:qd_put+0x133/0x190 fs/gfs2/quota.c:336 Code: 43 70 00 00 00 00 48 8d 73 78 e8 38 46 19 fe 4c 89 e7 e8 f0 44 e1 06 5b 5d 41 5c 41 5d 41 5e e9 93 ab da fd e8 8e ab da fd 90 <0f> 0b e8 86 ab da fd 4c 89 e7 e8 6e 98 b7 00 4c 89 e7 e8 c6 44 e1 RSP: 0000:ffffc90003b87c38 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88804a1bc000 RCX: ffffffff83ad6445 RDX: ffff888023370000 RSI: ffffffff83ad6512 RDI: 0000000000000005 RBP: 00000000ffffff80 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000ffffff80 R11: 0000000000000000 R12: ffff88804a1bc030 R13: ffff88804a1bc070 R14: ffff888050da8a68 R15: ffff88801801e808 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:000000005748a400 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007fd6a0c6a42d CR3: 0000000078e90000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_quota_sync+0x44b/0x630 fs/gfs2/quota.c:1373 gfs2_sync_fs+0x44/0xb0 fs/gfs2/super.c:669 sync_filesystem+0x109/0x280 fs/sync.c:56 generic_shutdown_super+0x7e/0x3d0 fs/super.c:625 kill_block_super+0x3b/0x90 fs/super.c:1680 gfs2_kill_sb+0x361/0x410 fs/gfs2/ops_fstype.c:1804 deactivate_locked_super+0xbc/0x1a0 fs/super.c:477 deactivate_super+0xde/0x100 fs/super.c:510 cleanup_mnt+0x222/0x450 fs/namespace.c:1267 task_work_run+0x14d/0x240 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:108 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline] syscall_exit_to_user_mode+0x281/0x2b0 kernel/entry/common.c:212 __do_fast_syscall_32+0x86/0x110 arch/x86/entry/common.c:324 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x70/0x7a RIP: 0023:0xf7fbc579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000ffbf1df8 EFLAGS: 00000292 ORIG_RAX: 0000000000000034 RAX: 0000000000000000 RBX: 00000000ffbf1ea0 RCX: 000000000000000a RDX: 00000000f7354ff4 RSI: 00000000f72a53bd RDI: 00000000ffbf2f44 RBP: 00000000ffbf1ea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:qd_put+0x133/0x190 fs/gfs2/quota.c:336 Code: 43 70 00 00 00 00 48 8d 73 78 e8 38 46 19 fe 4c 89 e7 e8 f0 44 e1 06 5b 5d 41 5c 41 5d 41 5e e9 93 ab da fd e8 8e ab da fd 90 <0f> 0b e8 86 ab da fd 4c 89 e7 e8 6e 98 b7 00 4c 89 e7 e8 c6 44 e1 RSP: 0000:ffffc90003b87c38 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88804a1bc000 RCX: ffffffff83ad6445 RDX: ffff888023370000 RSI: ffffffff83ad6512 RDI: 0000000000000005 RBP: 00000000ffffff80 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000ffffff80 R11: 0000000000000000 R12: ffff88804a1bc030 R13: ffff88804a1bc070 R14: ffff888050da8a68 R15: ffff88801801e808 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:000000005748a400 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007fd6a0c6a42d CR3: 0000000078e90000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi --- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup