------------[ cut here ]------------ WARNING: CPU: 0 PID: 4828 at include/linux/jbd2.h:1727 jbd2_journal_has_csum_v2or3 include/linux/jbd2.h:1726 [inline] WARNING: CPU: 0 PID: 4828 at include/linux/jbd2.h:1727 jbd2_descriptor_blocks_per_trans fs/jbd2/transaction.c:75 [inline] WARNING: CPU: 0 PID: 4828 at include/linux/jbd2.h:1727 jbd2_get_transaction fs/jbd2/transaction.c:112 [inline] WARNING: CPU: 0 PID: 4828 at include/linux/jbd2.h:1727 start_this_handle+0xe9c/0x15a0 fs/jbd2/transaction.c:412 Modules linked in: CPU: 0 PID: 4828 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:jbd2_journal_has_csum_v2or3 include/linux/jbd2.h:1726 [inline] RIP: 0010:jbd2_descriptor_blocks_per_trans fs/jbd2/transaction.c:75 [inline] RIP: 0010:jbd2_get_transaction fs/jbd2/transaction.c:112 [inline] RIP: 0010:start_this_handle+0xe9c/0x15a0 fs/jbd2/transaction.c:412 Code: a1 ff e9 3f f5 ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 7a f5 ff ff 4c 89 f7 e8 0e 63 a1 ff e9 6d f5 ff ff e8 74 fa 5c ff <0f> 0b e9 40 fc ff ff 89 d1 80 e1 07 80 c1 03 38 c1 0f 8c 8a f5 ff RSP: 0018:ffffc900034ef760 EFLAGS: 00010293 RAX: ffffffff821ad19c RBX: ffff888020370d80 RCX: ffff88802bb38000 RDX: 0000000000000000 RSI: 0000000008000000 RDI: 0000000000000000 RBP: ffffc900034ef980 R08: dffffc0000000000 R09: ffffed100406e1ca R10: ffffed100406e1ca R11: 1ffff1100406e1c9 R12: ffff888076d98000 R13: ffff888076d98980 R14: 0000000000000200 R15: dffffc0000000000 FS: 000055556566d500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c006a76000 CR3: 000000005b198000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: jbd2__journal_start+0x2b7/0x5a0 fs/jbd2/transaction.c:521 jbd2_journal_start+0x26/0x30 fs/jbd2/transaction.c:560 ocfs2_start_trans+0x374/0x6c0 fs/ocfs2/journal.c:376 ocfs2_shutdown_local_alloc+0x1fd/0xa10 fs/ocfs2/localalloc.c:416 ocfs2_dismount_volume+0x1de/0x880 fs/ocfs2/super.c:1885 generic_shutdown_super+0x130/0x300 fs/super.c:475 kill_block_super+0x7c/0xe0 fs/super.c:1427 deactivate_locked_super+0x93/0xf0 fs/super.c:335 cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148 task_work_run+0x125/0x1a0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f57d965ca77 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffc36d55ab8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f57d96dfd7d RCX: 00007f57d965ca77 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc36d55b70 RBP: 00007ffc36d55b70 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc36d56c00 R13: 00007f57d96dfd7d R14: 000000000001ed2b R15: 00007ffc36d56c40