syzbot


kernel BUG in jbd2_cleanup_journal_tail

Status: upstream: reported C repro on 2024/08/23 00:00
Subsystems: ext4
[Documentation on labels]
Reported-by: syzbot+8512f3dbd96253ffbe27@syzkaller.appspotmail.com
First crash: 57d, last: 17d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [ext4?] [ocfs2?] kernel BUG in jbd2_cleanup_journal_tail 6 (8) 2024/08/28 12:28
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in jbd2_cleanup_journal_tail origin:upstream C 9 17d 28d 0/3 upstream: reported C repro on 2024/09/17 02:30
linux-5.15 kernel BUG in jbd2_cleanup_journal_tail origin:upstream C 9 2d20h 29d 0/3 upstream: reported C repro on 2024/09/15 23:09
Last patch testing requests (3)
Created Duration User Patch Repo Result
2024/09/01 21:35 15m retest repro upstream report log
2024/09/01 21:35 15m retest repro upstream report log
2024/08/26 03:10 20m vpeixoto@lkcamp.dev patch upstream OK log

Sample crash report:
(syz-executor675,5099,0):ocfs2_check_volume:2425 ERROR: ocfs2 journal load failed! -22
(syz-executor675,5099,0):ocfs2_check_volume:2481 ERROR: status = -22
(syz-executor675,5099,0):ocfs2_mount_volume:1821 ERROR: status = -22
------------[ cut here ]------------
kernel BUG at fs/jbd2/checkpoint.c:321!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5099 Comm: syz-executor675 Not tainted 6.11.0-rc3-syzkaller-00338-gc3f2d783a459 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:jbd2_cleanup_journal_tail+0x2bf/0x2d0 fs/jbd2/checkpoint.c:321
Code: 24 40 80 e1 07 80 c1 03 38 c1 0f 8c 65 ff ff ff 48 8d 7c 24 40 e8 51 4d 8a ff e9 56 ff ff ff e8 57 1a 46 09 e8 a2 0b 23 ff 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffc90000e36d60 EFLAGS: 00010293
RAX: ffffffff82707f4e RBX: 0000000000000000 RCX: ffff88801a738000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000e36e30 R08: ffffffff82707dd7 R09: 1ffff11003709c16
R10: dffffc0000000000 R11: ffffed1003709c17 R12: 1ffff920001c6db0
R13: ffff88801b84e000 R14: 1ffff920001c6db6 R15: 1ffff11003709c00
FS:  000055555d18e380(0000) GS:ffff888020800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f251d195ed8 CR3: 000000001bee4000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jbd2_journal_flush+0x290/0xc10 fs/jbd2/journal.c:2479
 ocfs2_journal_shutdown+0x443/0xbe0 fs/ocfs2/journal.c:1081
 ocfs2_mount_volume+0x169f/0x1940 fs/ocfs2/super.c:1842
 ocfs2_fill_super+0x483b/0x5880 fs/ocfs2/super.c:1084
 mount_bdev+0x20a/0x2d0 fs/super.c:1679
 legacy_get_tree+0xee/0x190 fs/fs_context.c:662
 vfs_get_tree+0x90/0x2a0 fs/super.c:1800
 do_new_mount+0x2be/0xb40 fs/namespace.c:3472
 do_mount fs/namespace.c:3812 [inline]
 __do_sys_mount fs/namespace.c:4020 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f15c3ba9dea
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc0f1577b8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc0f1577d0 RCX: 00007f15c3ba9dea
RDX: 0000000020004440 RSI: 0000000020000040 RDI: 00007ffc0f1577d0
RBP: 0000000000000004 R08: 00007ffc0f157810 R09: 0000000000004424
R10: 00000000000008c0 R11: 0000000000000282 R12: 00000000000008c0
R13: 00007ffc0f157810 R14: 0000000000000003 R15: 0000000001000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jbd2_cleanup_journal_tail+0x2bf/0x2d0 fs/jbd2/checkpoint.c:321
Code: 24 40 80 e1 07 80 c1 03 38 c1 0f 8c 65 ff ff ff 48 8d 7c 24 40 e8 51 4d 8a ff e9 56 ff ff ff e8 57 1a 46 09 e8 a2 0b 23 ff 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffc90000e36d60 EFLAGS: 00010293
RAX: ffffffff82707f4e RBX: 0000000000000000 RCX: ffff88801a738000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000e36e30 R08: ffffffff82707dd7 R09: 1ffff11003709c16
R10: dffffc0000000000 R11: ffffed1003709c17 R12: 1ffff920001c6db0
R13: ffff88801b84e000 R14: 1ffff920001c6db6 R15: 1ffff11003709c00
FS:  000055555d18e380(0000) GS:ffff888020800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f251d195ed8 CR3: 000000001bee4000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (11):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/08/18 21:35 upstream c3f2d783a459 e1c76ab2 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel BUG in jbd2_cleanup_journal_tail
2024/08/18 21:16 upstream c3f2d783a459 e1c76ab2 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel BUG in jbd2_cleanup_journal_tail
2024/09/16 00:35 upstream d42f7708e27c 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in jbd2_cleanup_journal_tail
2024/09/16 00:35 upstream d42f7708e27c 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in jbd2_cleanup_journal_tail
2024/09/15 22:18 upstream d42f7708e27c 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in jbd2_cleanup_journal_tail
2024/09/15 22:18 upstream d42f7708e27c 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in jbd2_cleanup_journal_tail
2024/09/15 22:29 upstream d42f7708e27c 08d8a733 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in jbd2_cleanup_journal_tail
2024/09/27 19:45 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5f5673607153 2b1784d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in jbd2_cleanup_journal_tail
2024/09/27 19:45 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5f5673607153 2b1784d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in jbd2_cleanup_journal_tail
2024/09/15 22:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5f5673607153 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in jbd2_cleanup_journal_tail
2024/09/15 22:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5f5673607153 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in jbd2_cleanup_journal_tail
* Struck through repros no longer work on HEAD.