------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:449! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4462 Comm: kworker/u4:7 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : hfs_write_inode+0x8d8/0x8dc fs/hfs/inode.c:449 lr : hfs_write_inode+0x8d8/0x8dc fs/hfs/inode.c:449 sp : ffff8000217a7280 x29: ffff8000217a73c0 x28: 1fffe000201222b6 x27: dfff800000000000 x26: dfff800000000000 x25: ffff8000217a7280 x24: ffff7000042f4e50 x23: ffff800011cccac0 x22: 0000000000000000 x21: 0000000000000000 x20: ffff0001009114d8 x19: ffff8000217a7300 x18: ffff800011b7bf60 x17: 1fffe00033eaab7e x16: ffff8000082ef028 x15: 0000000000000000 x14: 0000000000000004 x13: 0000000000ff0100 x12: 0000000000ff0100 x11: ff00800008fb1454 x10: 0000000000000000 x9 : ffff800008fb1454 x8 : ffff0000dc671bc0 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000006 x1 : ffff8000155bdf20 x0 : 0000000000000000 Call trace: hfs_write_inode+0x8d8/0x8dc fs/hfs/inode.c:449 write_inode fs/fs-writeback.c:1470 [inline] __writeback_single_inode+0x5e0/0x1554 fs/fs-writeback.c:1687 writeback_sb_inodes+0x858/0x143c fs/fs-writeback.c:1913 wb_writeback+0x414/0xfcc fs/fs-writeback.c:2087 wb_do_writeback fs/fs-writeback.c:2230 [inline] wb_workfn+0x360/0xe18 fs/fs-writeback.c:2270 process_one_work+0x7f8/0x13a4 kernel/workqueue.c:2292 worker_thread+0x8c4/0xfec kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 Code: aa1403e0 97e4cf93 17ffff9c 97d3e6a3 (d4210000) ---[ end trace 0000000000000000 ]---