------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:474! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 16101 Comm: kworker/u8:10 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-7:5) RIP: 0010:hfs_write_inode+0x934/0x960 fs/hfs/inode.c:474 Code: 40 31 ff e8 1e 98 16 ff 81 e3 00 00 00 40 75 1c e8 d1 93 16 ff 48 bb f8 f8 f8 f8 f8 f8 f8 f8 e9 dc f7 ff ff e8 bd 93 16 ff 90 <0f> 0b e8 b5 93 16 ff e8 80 87 83 fe eb dd 44 89 f1 80 e1 07 80 c1 RSP: 0018:ffffc900031a71a0 EFLAGS: 00010293 RAX: ffffffff82af8dd3 RBX: ffff8880572e0e10 RCX: ffff888035f70000 RDX: 0000000000000000 RSI: ffffffff8ebc8b00 RDI: 0000000000000000 RBP: ffffc900031a7328 R08: ffff888035f70000 R09: 0000000000000003 R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff92000634e38 R14: 0000000000000000 R15: ffff8880572e0dd0 FS: 0000000000000000(0000) GS:ffff88812525c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5ad344edd5 CR3: 00000000528c2000 CR4: 00000000003526f0 Call Trace: write_inode fs/fs-writeback.c:1582 [inline] __writeback_single_inode+0x75a/0x10e0 fs/fs-writeback.c:1825 writeback_sb_inodes+0x979/0x19d0 fs/fs-writeback.c:2054 wb_writeback+0x445/0xb00 fs/fs-writeback.c:2239 wb_do_writeback fs/fs-writeback.c:2386 [inline] wb_workfn+0x3f8/0xf10 fs/fs-writeback.c:2426 process_one_work kernel/workqueue.c:3302 [inline] process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466 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+0x934/0x960 fs/hfs/inode.c:474 Code: 40 31 ff e8 1e 98 16 ff 81 e3 00 00 00 40 75 1c e8 d1 93 16 ff 48 bb f8 f8 f8 f8 f8 f8 f8 f8 e9 dc f7 ff ff e8 bd 93 16 ff 90 <0f> 0b e8 b5 93 16 ff e8 80 87 83 fe eb dd 44 89 f1 80 e1 07 80 c1 RSP: 0018:ffffc900031a71a0 EFLAGS: 00010293 RAX: ffffffff82af8dd3 RBX: ffff8880572e0e10 RCX: ffff888035f70000 RDX: 0000000000000000 RSI: ffffffff8ebc8b00 RDI: 0000000000000000 RBP: ffffc900031a7328 R08: ffff888035f70000 R09: 0000000000000003 R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff92000634e38 R14: 0000000000000000 R15: ffff8880572e0dd0 FS: 0000000000000000(0000) GS:ffff88812525c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5ad344edd5 CR3: 00000000528c2000 CR4: 00000000003526f0