syzbot

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kernel BUG at fs/ocfs2/alloc.c:6012!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4425 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __ocfs2_flush_truncate_log+0xe98/0x1068 fs/ocfs2/alloc.c:6012
lr : __ocfs2_flush_truncate_log+0xe98/0x1068 fs/ocfs2/alloc.c:6012
sp : ffff800020f773e0
x29: ffff800020f775a0 x28: ffff0000cbeeb000 x27: dfff800000000000
x26: 1fffe00019c689e5 x25: ffff0000ce344f20 x24: ffff0000ce344000
x23: ffff0000e51db338 x22: ffff0000ce344f28 x21: 00000000ffffffff
x20: ffff0000eab8ba00 x19: ffff7000041eee8c x18: ffff800011a5bd40
x17: ffff800018184000 x16: ffff8000082cf240 x15: ffff800017c65000
x14: ffff0000d3daddd8 x13: ffff0000d3dade00 x12: 0000000000ff0100
x11: ff00800009cc2514 x10: 0000000000000000 x9 : ffff800009cc2514
x8 : ffff0000d3dad340 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800018338450 x4 : 0000000000000008 x3 : ffff8000082cf2d8
x2 : 0000000000000001 x1 : 00000000ffffffff x0 : 0000000000000000
Call trace:
 __ocfs2_flush_truncate_log+0xe98/0x1068 fs/ocfs2/alloc.c:6012
 ocfs2_flush_truncate_log+0x48/0x68 fs/ocfs2/alloc.c:6077
 ocfs2_sync_fs+0xf8/0x2a4 fs/ocfs2/super.c:402
 sync_filesystem+0x1a0/0x218 fs/sync.c:66
 generic_shutdown_super+0x70/0x324 fs/super.c:474
 kill_block_super+0x70/0xdc fs/super.c:1470
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xe8/0x108 fs/super.c:363
 cleanup_mnt+0x37c/0x404 fs/namespace.c:1191
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198
 task_work_run+0x1ec/0x270 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0x54c/0x19a8 kernel/exit.c:880
 do_group_exit+0x194/0x22c kernel/exit.c:1022
 get_signal+0x11d0/0x1310 kernel/signal.c:2871
 do_signal arch/arm64/kernel/signal.c:1081 [inline]
 do_notify_resume+0x34c/0x2b28 arch/arm64/kernel/signal.c:1134
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x98/0x138 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 17ffff12 979f82fe d4210000 979f82fc (d4210000) 
---[ end trace 0000000000000000 ]---