------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:476! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5810 Comm: kworker/u8:8 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/10/2026 Workqueue: writeback wb_workfn (flush-7:2) RIP: 0010:hfs_write_inode+0x95e/0x990 fs/hfs/inode.c:476 Code: 89 de 81 e6 00 00 00 40 31 ff e8 dd c0 10 ff 81 e3 00 00 00 40 75 15 e8 90 bc 10 ff 4c 89 f3 e9 b1 f7 ff ff e8 83 bc 10 ff 90 <0f> 0b e8 7b bc 10 ff e8 46 08 7d fe eb e4 44 89 e1 80 e1 07 80 c1 RSP: 0018:ffffc90004fdf1a0 EFLAGS: 00010293 RAX: ffffffff82b5b5bd RBX: f8f8f8f8f8f8f8f8 RCX: ffff88802c6ebe00 RDX: 0000000000000000 RSI: ffffffff8edce8d0 RDI: 0000000000000000 RBP: ffffc90004fdf328 R08: ffff88802c6ebe00 R09: 0000000000000003 R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff888029594080 R15: 1ffff920009fbe38 FS: 0000000000000000(0000) GS:ffff888124f58000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000015e030 CR3: 0000000036313000 CR4: 0000000000350ef0 Call Trace: write_inode fs/fs-writeback.c:1607 [inline] __writeback_single_inode+0x6ac/0xf90 fs/fs-writeback.c:1850 writeback_sb_inodes+0x9de/0x1b00 fs/fs-writeback.c:2079 wb_writeback+0x41c/0xad0 fs/fs-writeback.c:2264 wb_do_writeback fs/fs-writeback.c:2432 [inline] wb_workfn+0x431/0x10f0 fs/fs-writeback.c:2477 process_one_work kernel/workqueue.c:3322 [inline] process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hfs_write_inode+0x95e/0x990 fs/hfs/inode.c:476 Code: 89 de 81 e6 00 00 00 40 31 ff e8 dd c0 10 ff 81 e3 00 00 00 40 75 15 e8 90 bc 10 ff 4c 89 f3 e9 b1 f7 ff ff e8 83 bc 10 ff 90 <0f> 0b e8 7b bc 10 ff e8 46 08 7d fe eb e4 44 89 e1 80 e1 07 80 c1 RSP: 0018:ffffc90004fdf1a0 EFLAGS: 00010293 RAX: ffffffff82b5b5bd RBX: f8f8f8f8f8f8f8f8 RCX: ffff88802c6ebe00 RDX: 0000000000000000 RSI: ffffffff8edce8d0 RDI: 0000000000000000 RBP: ffffc90004fdf328 R08: ffff88802c6ebe00 R09: 0000000000000003 R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff888029594080 R15: 1ffff920009fbe38 FS: 0000000000000000(0000) GS:ffff888124f58000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000228030 CR3: 0000000053e68000 CR4: 0000000000350ef0