------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:474! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 1010 Comm: kworker/u8:8 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: writeback wb_workfn (flush-7:0) RIP: 0010:hfs_write_inode+0x428/0xab0 fs/hfs/inode.c:474 Code: d1 8b 4c 89 f7 e8 c8 74 0f ff 49 83 fe 03 0f 84 cb 02 00 00 49 83 fe 04 74 12 49 83 fe 02 0f 84 00 fd ff ff e8 99 79 0f ff 90 <0f> 0b e8 91 79 0f ff 48 8d 7d 28 48 b8 00 00 00 00 00 fc ff df 48 RSP: 0018:ffffc9000505f490 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 1ffff92000a0be94 RCX: ffffffff82f96248 RDX: ffff888028dbdb80 RSI: ffffffff82f96267 RDI: ffff888028dbdb80 RBP: ffff8880530a1b58 R08: 0000000000000007 R09: 0000000000000004 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffc9000505f4d0 R14: 0000000000000000 R15: ffffc9000505f530 FS: 0000000000000000(0000) GS:ffff88812433c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa462be7158 CR3: 000000005d980000 CR4: 0000000000350ef0 Call Trace: write_inode fs/fs-writeback.c:1582 [inline] __writeback_single_inode+0xd00/0x13c0 fs/fs-writeback.c:1825 writeback_sb_inodes+0x766/0x1c70 fs/fs-writeback.c:2054 wb_writeback+0x1c0/0xbe0 fs/fs-writeback.c:2239 wb_do_writeback fs/fs-writeback.c:2386 [inline] wb_workfn+0x142/0xc00 fs/fs-writeback.c:2426 process_one_work+0xa23/0x19a0 kernel/workqueue.c:3276 process_scheduled_works kernel/workqueue.c:3359 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3440 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x754/0xd80 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+0x428/0xab0 fs/hfs/inode.c:474 Code: d1 8b 4c 89 f7 e8 c8 74 0f ff 49 83 fe 03 0f 84 cb 02 00 00 49 83 fe 04 74 12 49 83 fe 02 0f 84 00 fd ff ff e8 99 79 0f ff 90 <0f> 0b e8 91 79 0f ff 48 8d 7d 28 48 b8 00 00 00 00 00 fc ff df 48 RSP: 0018:ffffc9000505f490 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 1ffff92000a0be94 RCX: ffffffff82f96248 RDX: ffff888028dbdb80 RSI: ffffffff82f96267 RDI: ffff888028dbdb80 RBP: ffff8880530a1b58 R08: 0000000000000007 R09: 0000000000000004 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffc9000505f4d0 R14: 0000000000000000 R15: ffffc9000505f530 FS: 0000000000000000(0000) GS:ffff88812443c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30b23ffc CR3: 0000000026ae8000 CR4: 0000000000350ef0