------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:474! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 49 Comm: kworker/u8:3 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Workqueue: writeback wb_workfn (flush-7:1) RIP: 0010:hfs_write_inode+0x934/0x960 fs/hfs/inode.c:474 Code: 40 31 ff e8 fe 60 1d ff 81 e3 00 00 00 40 75 1c e8 41 5c 1d ff 48 bb f8 f8 f8 f8 f8 f8 f8 f8 e9 dc f7 ff ff e8 2d 5c 1d ff 90 <0f> 0b e8 25 5c 1d ff e8 b0 74 8b fe eb dd 44 89 f1 80 e1 07 80 c1 RSP: 0018:ffffc90000bb71a0 EFLAGS: 00010293 RAX: ffffffff82a71d93 RBX: ffff88806578c0c8 RCX: ffff888020691ec0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000bb7328 R08: ffff888020691ec0 R09: 0000000000000003 R10: 0000000000000100 R11: 0000000000000004 R12: dffffc0000000000 R13: 1ffff92000176e38 R14: 0000000000000000 R15: ffff88806578c088 FS: 0000000000000000(0000) GS:ffff888126271000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055558c45ca68 CR3: 000000005b210000 CR4: 00000000003526f0 Call Trace: write_inode fs/fs-writeback.c:1584 [inline] __writeback_single_inode+0x75d/0x10e0 fs/fs-writeback.c:1827 writeback_sb_inodes+0x97f/0x1980 fs/fs-writeback.c:2056 wb_writeback+0x445/0xb00 fs/fs-writeback.c:2241 wb_do_writeback fs/fs-writeback.c:2388 [inline] wb_workfn+0x3fd/0xf20 fs/fs-writeback.c:2428 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3397 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3478 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 fe 60 1d ff 81 e3 00 00 00 40 75 1c e8 41 5c 1d ff 48 bb f8 f8 f8 f8 f8 f8 f8 f8 e9 dc f7 ff ff e8 2d 5c 1d ff 90 <0f> 0b e8 25 5c 1d ff e8 b0 74 8b fe eb dd 44 89 f1 80 e1 07 80 c1 RSP: 0018:ffffc90000bb71a0 EFLAGS: 00010293 RAX: ffffffff82a71d93 RBX: ffff88806578c0c8 RCX: ffff888020691ec0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000bb7328 R08: ffff888020691ec0 R09: 0000000000000003 R10: 0000000000000100 R11: 0000000000000004 R12: dffffc0000000000 R13: 1ffff92000176e38 R14: 0000000000000000 R15: ffff88806578c088 FS: 0000000000000000(0000) GS:ffff888126271000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055558c45ca68 CR3: 0000000037cc4000 CR4: 00000000003526f0