From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f205.google.com (mail-il1-f205.google.com [209.85.166.205]) (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 E56C6279DA5 for ; Fri, 13 Jun 2025 11:37:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.205 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749814649; cv=none; b=tgUJmuzgJ8OxYOqsyqo+Yql5znG+ZsZ38XgsJ4CygPV7kHcm/0NnkUZGvBrAmCqPtJ8AKou01W+A39wEaUaNDAUXCsjBVhZMbfRr41O4oTFdIN1nKot8PWlTnL9Lkob2hmftWxAkKEg2BqQOcTAs3IDwOUqn3d1ss1HigfWe3Jw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749814649; c=relaxed/simple; bh=CGazjHvtPLR+n+nraHqXK60GXztxc5Ty1HT6JYo1GE8=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=sS0eLrmhAdFZxblJJNCW7RnTf/fREbOy6bYHNUwApS+fOvbV7AWhpJBMmwDXrcN8CYSbmVnwYmXePDr9TjVOsO28CA/1xwGuvVrqqaMxmxCYPeGTt8U5fSheUwhf5wlAyYDDl4FobTy8tpnL4wS06/Rg3NkjLvEE11Yf3xfpDVk= 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=209.85.166.205 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-il1-f205.google.com with SMTP id e9e14a558f8ab-3ddd051e8e5so18585755ab.1 for ; Fri, 13 Jun 2025 04:37:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749814647; x=1750419447; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=01E6f5NyJDwmtzVDXOANJOOLyRyTfojGhsVBy8J5eMM=; b=CjTtU/0bvSS41oWQuFCaqSDoDat6fP6yscvp/3fLW4KQ9dUed6azN4KqlCDaOQm/ZL wuSU4TjGH85WxnP5I0qdNO1vLolP4pRvnRTXYB2FpDeflCkdHyZln5FzGV7ydQJvEMd8 BOFdIerQdCldOQt7F0nl1BccoZ5+/kW/JcUOQsSc9C6LE72jDZPvIfKL1zzR/Pr+m4No X+fRLCGdN9VuyFYYBiY56hIZgbAaTkCcASuQ6b24Txdbbze/g9xw6ICBEdCqX3uIG0PR VG+yJIUqw8X7Q5ivc2M+C4B18+/7wl5m0AG+0uMMS1fwHq+pmJLGPjEM8SZBO0PpV8iy 3XRg== X-Forwarded-Encrypted: i=1; AJvYcCXled8l65kRMOezpGkIfBiRrCb0nQ3tapx4ObyqVUDywARt5wh/MTuWodFLY+og106e3f38@lists.linux.dev X-Gm-Message-State: AOJu0YzwQShH3bERuppzq5fboGh4riKi9yYAND6thIME3xwuvGM4JtyS ooqYiGYo9Qjm4HlqrJ5ncME2zS+k154dG+NH6Rkr5ZcHg5dJoZ/z7HwL/j3bb4O7yYz5F0Gfexe xY0cOTB/SU1Rz6DRi244X+SsZnia/Pj+bvrlVNNz46EL+NjN+6mqYsbJ0OQ0= X-Google-Smtp-Source: AGHT+IH2V3mFt2EYaks4rh55v1OqK2tPnYn9+0ROvQwt36ptpn6T1KZuMAgjcxi2hbyb3ZYrloTySqAcaaa65Y+SxNsKdL3q7uKc Precedence: bulk X-Mailing-List: gfs2@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2593:b0:3dd:d995:5a97 with SMTP id e9e14a558f8ab-3de00bea30dmr26645245ab.12.1749814647001; Fri, 13 Jun 2025 04:37:27 -0700 (PDT) Date: Fri, 13 Jun 2025 04:37:26 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <684c0d76.050a0220.be214.029f.GAE@google.com> Subject: [syzbot] [gfs2?] kernel BUG in gfs2_jindex_free (2) From: syzbot To: agruenba@redhat.com, gfs2@lists.linux.dev, 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: 19272b37aa4f Linux 6.16-rc1 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=108dca82580000 kernel config: https://syzkaller.appspot.com/x/.config?x=c07f08ee4bcfb276 dashboard link: https://syzkaller.appspot.com/bug?extid=150563285f78ac3e9bd4 compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-19272b37.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/b70bcabfccd8/vmlinux-19272b37.xz kernel image: https://storage.googleapis.com/syzbot-assets/57e93b736a7a/bzImage-19272b37.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+150563285f78ac3e9bd4@syzkaller.appspotmail.com loop0: detected capacity change from 0 to 1024 hfsplus: failed to load root directory loop0: detected capacity change from 0 to 32768 gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" gfs2: fsid=syz:syz: Now mounting FS (format 1801)... gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms gfs2: fsid=syz:syz.0: first mount done, others may mount gfs2: fsid=syz:syz.0: fatal: I/O error - block = 9377, function = gfs2_ail1_empty_one, file = fs/gfs2/log.c, line = 328 gfs2: fsid=syz:syz.0: about to withdraw this file system gfs2: fsid=syz:syz.0: Journal recovery skipped for jid 0 until next mount. gfs2: fsid=syz:syz.0: Glock dequeues delayed: 0 gfs2: fsid=syz:syz.0: File system withdrawn CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted 6.16.0-rc1-syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 gfs2_withdraw+0x111e/0x14f0 fs/gfs2/util.c:354 revoke_lo_before_commit+0x2f/0xe60 fs/gfs2/lops.c:857 lops_before_commit fs/gfs2/lops.h:42 [inline] gfs2_log_flush+0xb8b/0x24c0 fs/gfs2/log.c:1105 gfs2_sync_fs+0x6d/0xb0 fs/gfs2/super.c:662 sync_filesystem+0x1cf/0x230 fs/sync.c:66 gfs2_reconfigure+0xbb/0xb20 fs/gfs2/ops_fstype.c:1555 reconfigure_super+0x224/0x890 fs/super.c:1075 vfs_cmd_reconfigure fs/fsopen.c:262 [inline] vfs_fsconfig_locked+0x171/0x320 fs/fsopen.c:291 __do_sys_fsconfig fs/fsopen.c:467 [inline] __se_sys_fsconfig+0x78e/0x8d0 fs/fsopen.c:344 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3a8ed8e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3a8fb52038 EFLAGS: 00000246 ORIG_RAX: 00000000000001af RAX: ffffffffffffffda RBX: 00007f3a8efb5fa0 RCX: 00007f3a8ed8e929 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 000000000000000c RBP: 00007f3a8ee10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3a8efb5fa0 R15: 00007fff7917f738 ------------[ cut here ]------------ kernel BUG at fs/gfs2/super.c:76! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted 6.16.0-rc1-syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:gfs2_jindex_free+0x43e/0x440 fs/gfs2/super.c:76 Code: cc cc cc cc cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c ea fd ff ff e8 52 d1 2b fe e9 e0 fd ff ff e8 08 02 6e 07 e8 13 59 c8 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 RSP: 0018:ffffc9000fec7800 EFLAGS: 00010293 RAX: ffffffff83f805dd RBX: dead000000000122 RCX: ffff888000514880 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff RBP: ffffc9000fec78c0 R08: ffff888042458d4f R09: 1ffff1100848b1a9 R10: dffffc0000000000 R11: ffffed100848b1aa R12: ffff888042458818 R13: dffffc0000000000 R14: ffff888035c49400 R15: ffff888035c49478 FS: 0000000000000000(0000) GS:ffff88808d252000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c2ed7e1b88 CR3: 0000000011bd9000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_put_super+0x8af/0x950 fs/gfs2/super.c:638 generic_shutdown_super+0x135/0x2c0 fs/super.c:643 kill_block_super+0x44/0x90 fs/super.c:1753 deactivate_locked_super+0xb9/0x130 fs/super.c:474 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1417 task_work_run+0x1d1/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x6ad/0x22e0 kernel/exit.c:955 do_group_exit+0x21c/0x2d0 kernel/exit.c:1104 get_signal+0x1286/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:111 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3a8ed8e929 Code: Unable to access opcode bytes at 0x7f3a8ed8e8ff. RSP: 002b:00007f3a8fb52038 EFLAGS: 00000246 ORIG_RAX: 00000000000001af RAX: fffffffffffffffb RBX: 00007f3a8efb5fa0 RCX: 00007f3a8ed8e929 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 000000000000000c RBP: 00007f3a8ee10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3a8efb5fa0 R15: 00007fff7917f738 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:gfs2_jindex_free+0x43e/0x440 fs/gfs2/super.c:76 Code: cc cc cc cc cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c ea fd ff ff e8 52 d1 2b fe e9 e0 fd ff ff e8 08 02 6e 07 e8 13 59 c8 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 RSP: 0018:ffffc9000fec7800 EFLAGS: 00010293 RAX: ffffffff83f805dd RBX: dead000000000122 RCX: ffff888000514880 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff RBP: ffffc9000fec78c0 R08: ffff888042458d4f R09: 1ffff1100848b1a9 R10: dffffc0000000000 R11: ffffed100848b1aa R12: ffff888042458818 R13: dffffc0000000000 R14: ffff888035c49400 R15: ffff888035c49478 FS: 0000000000000000(0000) GS:ffff88808d252000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c2ed7e1b88 CR3: 00000000122c6000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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