------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:449! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 39 Comm: kworker/u4:2 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 Workqueue: writeback wb_workfn (flush-7:1) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : hfs_write_inode+0x87c/0x880 fs/hfs/inode.c:449 lr : hfs_write_inode+0x87c/0x880 fs/hfs/inode.c:449 sp : ffff80001cd87280 x29: ffff80001cd873c0 x28: 1fffe000185c31e6 x27: dfff800000000000 x26: dfff800000000000 x25: ffff80001cd87280 x24: ffff7000039b0e50 x23: ffff800011c0c840 x22: 0000000000000000 x21: 0000000000000000 x20: ffff0000c2e18e58 x19: ffff80001cd87300 x18: ffff800011abbcc0 x17: ffff8000181f9000 x16: ffff8000082e7b10 x15: 0000000000000000 x14: 0000000000000004 x13: 0000000000ff0100 x12: 0000000000ff0100 x11: ff00800008f96128 x10: 0000000000000000 x9 : ffff800008f96128 x8 : ffff0000c4348000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000006 x1 : ffff80001547e940 x0 : 0000000000000000 Call trace: hfs_write_inode+0x87c/0x880 fs/hfs/inode.c:449 write_inode fs/fs-writeback.c:1460 [inline] __writeback_single_inode+0x5e0/0x157c fs/fs-writeback.c:1677 writeback_sb_inodes+0x824/0x1404 fs/fs-writeback.c:1903 wb_writeback+0x400/0xfb0 fs/fs-writeback.c:2077 wb_do_writeback fs/fs-writeback.c:2220 [inline] wb_workfn+0x34c/0xd98 fs/fs-writeback.c:2260 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 Code: aa1403e0 97e50203 17ffff9c 97d42e85 (d4210000) ---[ end trace 0000000000000000 ]---