------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:456! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 42 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026 Workqueue: writeback wb_workfn (flush-7:4) RIP: 0010:hfs_write_inode+0x934/0x960 fs/hfs/inode.c:456 Code: 40 31 ff e8 2e 99 22 ff 81 e3 00 00 00 40 75 1c e8 71 94 22 ff 48 bb f8 f8 f8 f8 f8 f8 f8 f8 e9 dc f7 ff ff e8 5d 94 22 ff 90 <0f> 0b e8 55 94 22 ff e8 80 15 92 fe eb dd 44 89 f1 80 e1 07 80 c1 RSP: 0018:ffffc90000b47160 EFLAGS: 00010293 RAX: ffffffff82a0a013 RBX: ffff888034f59048 RCX: ffff88801ee80000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000b472e8 R08: ffff88801ee80000 R09: 0000000000000003 R10: 0000000000000100 R11: 0000000000000004 R12: dffffc0000000000 R13: 1ffff92000168e30 R14: 0000000000000000 R15: ffff888034f59008 FS: 0000000000000000(0000) GS:ffff8881265c9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5e0b0fd000 CR3: 00000000380a6000 CR4: 00000000003526f0 Call Trace: write_inode fs/fs-writeback.c:1582 [inline] __writeback_single_inode+0x7e4/0x1230 fs/fs-writeback.c:1802 writeback_sb_inodes+0x92e/0x1910 fs/fs-writeback.c:2030 wb_writeback+0x445/0xad0 fs/fs-writeback.c:2216 wb_do_writeback fs/fs-writeback.c:2363 [inline] wb_workfn+0x3fd/0xf00 fs/fs-writeback.c:2403 process_one_work kernel/workqueue.c:3257 [inline] process_scheduled_works+0xaec/0x17a0 kernel/workqueue.c:3340 worker_thread+0xda6/0x1360 kernel/workqueue.c:3421 kthread+0x726/0x8b0 kernel/kthread.c:463 ret_from_fork+0x51b/0xa40 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hfs_write_inode+0x934/0x960 fs/hfs/inode.c:456 Code: 40 31 ff e8 2e 99 22 ff 81 e3 00 00 00 40 75 1c e8 71 94 22 ff 48 bb f8 f8 f8 f8 f8 f8 f8 f8 e9 dc f7 ff ff e8 5d 94 22 ff 90 <0f> 0b e8 55 94 22 ff e8 80 15 92 fe eb dd 44 89 f1 80 e1 07 80 c1 RSP: 0018:ffffc90000b47160 EFLAGS: 00010293 RAX: ffffffff82a0a013 RBX: ffff888034f59048 RCX: ffff88801ee80000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000b472e8 R08: ffff88801ee80000 R09: 0000000000000003 R10: 0000000000000100 R11: 0000000000000004 R12: dffffc0000000000 R13: 1ffff92000168e30 R14: 0000000000000000 R15: ffff888034f59008 FS: 0000000000000000(0000) GS:ffff8881265c9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4a75bffffc CR3: 0000000036780000 CR4: 00000000003526f0