------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:449! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 1578 Comm: kworker/u4:4 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: writeback wb_workfn (flush-7:2) pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : hfs_write_inode+0x8e4/0x8e8 fs/hfs/inode.c:449 lr : hfs_write_inode+0x8e4/0x8e8 fs/hfs/inode.c:449 sp : ffff800025a57320 x29: ffff800025a57460 x28: 1fffe0001e8c2456 x27: 1fffe0001e8c2440 x26: dfff800000000000 x25: ffff800025a573a0 x24: dfff800000000000 x23: ffff800025a57320 x22: ffff700004b4ae64 x21: 0000000000020080 x20: 0000000000000000 x19: ffff0000f46121d8 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff800011b8ee98 x15: 0000000000000000 x14: 0000000000000004 x13: 0000000000ff0100 x12: ffff80001573e368 x11: ff00800008fc99b0 x10: 0000000000000000 x9 : ffff800008fc99b0 x8 : ffff0000cfd71c00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000006 x1 : ffff80001573e340 x0 : 0000000000000000 Call trace: hfs_write_inode+0x8e4/0x8e8 fs/hfs/inode.c:449 write_inode fs/fs-writeback.c:1470 [inline] __writeback_single_inode+0x5e0/0x157c fs/fs-writeback.c:1687 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1913 wb_writeback+0x40c/0xfdc 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+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 Code: aa1303e0 97e4a8ca 17ffff9a 97d3a327 (d4210000) ---[ end trace 0000000000000000 ]---