syzbot


WARNING in jbd2_journal_dirty_metadata (3)

Status: upstream: reported on 2026/04/22 22:44
Subsystems: ext4
Labels: prio:high
[Documentation on labels]
Reported-by: syzbot+a5f824f1c49dd97fcff0@syzkaller.appspotmail.com
First crash: 60d, last: 2h27m
✨ AI Jobs (1)
ID Workflow Result Correct Bug Created Started Finished Revision Error
b9757149-06b8-4f93-b930-1242674468a3 assessment-security DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ✅ NetworkTrigger: ❌ PeripheralTrigger: ✅ RemoteTrigger: ❌ Unprivileged: ✅ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ❌ WARNING in jbd2_journal_dirty_metadata (3) 2026/05/21 06:44 2026/05/21 06:44 2026/05/21 07:27 cf874a1cf36318c06202027159ddac14acf00db7

			
		
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [ext4?] WARNING in jbd2_journal_dirty_metadata (3) 0 (1) 2026/04/22 22:44
Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in jbd2_journal_dirty_metadata (2) ext4 -1 58 139d 383d 0/29 auto-obsoleted due to no activity on 2026/04/10 03:13
upstream WARNING in jbd2_journal_dirty_metadata ext4 -1 49 478d 646d 0/29 auto-obsoleted due to no activity on 2025/05/05 22:21

Sample crash report:
loop0: detected capacity change from 0 to 32768
=======================================================
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
loop0: detected capacity change from 32768 to 64
(syz.0.0,5320,0):__ocfs2_journal_access:724 ERROR: Error -30 getting 1 access to buffer!
(syz.0.0,5320,0):ocfs2_journal_access_path:752 ERROR: status = -30
(syz.0.0,5320,0):ocfs2_truncate_rec:5460 ERROR: status = -30
(syz.0.0,5320,0):ocfs2_remove_extent:5601 ERROR: status = -30
(syz.0.0,5320,0):__ocfs2_remove_xattr_range:786 ERROR: status = -30
(syz.0.0,5320,0):ocfs2_xattr_shrink_size:840 ERROR: status = -30
(syz.0.0,5320,0):__ocfs2_journal_access:724 ERROR: Error -30 getting 1 access to buffer!
(syz.0.0,5320,0):ocfs2_xa_prepare_entry:2182 ERROR: status = -30
(syz.0.0,5320,0):ocfs2_xa_set:2285 ERROR: status = -30
------------[ cut here ]------------
jh->b_transaction != transaction && jh->b_next_transaction != transaction
WARNING: fs/jbd2/transaction.c:1545 at jbd2_journal_dirty_metadata+0x75c/0xd30 fs/jbd2/transaction.c:1544, CPU#0: syz.0.0/5320
Modules linked in:
CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:jbd2_journal_dirty_metadata+0x75c/0xd30 fs/jbd2/transaction.c:1544
Code: e8 f9 a2 0e 09 4c 89 ef 4c 89 fe ba 01 00 00 00 e8 d9 ec ff ff 48 89 df e8 61 a4 0e 09 31 c0 e9 7b fc ff ff e8 95 5a 25 ff 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 28 80 3c 01 00
RSP: 0018:ffffc90007666be0 EFLAGS: 00010287
RAX: ffffffff82a0d6fb RBX: ffff888046ece3c0 RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 0000000000003ab1 RDI: 0000000000003ab2
RBP: 1ffff110039967c3 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000eccd6c R12: ffff888046ece428
R13: 1ffff11008dd9c86 R14: ffff888046ece430 R15: ffff88801ccb3e18
FS:  00007ff1b19f56c0(0000) GS:ffff88808c85e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe41bc5ff8 CR3: 0000000043715000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_journal_dirty+0x130/0x6f0 fs/ocfs2/journal.c:831
 ocfs2_xa_journal_dirty fs/ocfs2/xattr.c:1483 [inline]
 ocfs2_xa_set+0x1603/0x2ef0 fs/ocfs2/xattr.c:2294
 ocfs2_xattr_block_set+0x3d2/0x3330 fs/ocfs2/xattr.c:3016
 __ocfs2_xattr_set_handle+0x6b2/0xf40 fs/ocfs2/xattr.c:3418
 ocfs2_xattr_set+0xf20/0x13a0 fs/ocfs2/xattr.c:3681
 __vfs_setxattr+0x442/0x480 fs/xattr.c:223
 __vfs_setxattr_noperm+0x12a/0x660 fs/xattr.c:257
 vfs_setxattr+0x163/0x360 fs/xattr.c:344
 do_setxattr fs/xattr.c:662 [inline]
 filename_setxattr+0x296/0x630 fs/xattr.c:690
 path_setxattrat+0x408/0x450 fs/xattr.c:734
 __do_sys_setxattr fs/xattr.c:768 [inline]
 __se_sys_setxattr fs/xattr.c:764 [inline]
 __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:764
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff1b559ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff1b19f4fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007ff1b5815fa0 RCX: 00007ff1b559ce59
RDX: 0000200000000080 RSI: 0000200000000380 RDI: 0000200000000340
RBP: 00007ff1b5632d6f R08: 0000000000000002 R09: 0000000000000000
R10: 000000000000000c R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff1b5816038 R14: 00007ff1b5815fa0 R15: 00007fff51139648
 </TASK>

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/06/18 06:11 upstream e771677c937d b62b3ded .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2026/06/14 06:43 upstream 2b07ea76fd28 4f06757f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2026/04/18 22:38 upstream eb5249b12507 303e2802 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
* Struck through repros no longer work on HEAD.