------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:474! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 26850 Comm: kworker/u8:0 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-7:6) RIP: 0010:hfs_write_inode+0x934/0x960 fs/hfs/inode.c:474 Code: 40 31 ff e8 ce 3a 15 ff 81 e3 00 00 00 40 75 1c e8 81 36 15 ff 48 bb f8 f8 f8 f8 f8 f8 f8 f8 e9 dc f7 ff ff e8 6d 36 15 ff 90 <0f> 0b e8 65 36 15 ff e8 c0 83 82 fe eb dd 44 89 f1 80 e1 07 80 c1 RSP: 0018:ffffc9000dcbf1a0 EFLAGS: 00010293 RAX: ffffffff82b07e63 RBX: ffff88807b914f98 RCX: ffff88803039db80 RDX: 0000000000000000 RSI: ffffffff8e9c7580 RDI: 0000000000000000 RBP: ffffc9000dcbf328 R08: ffff88803039db80 R09: 0000000000000003 R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff92001b97e38 R14: 0000000000000000 R15: ffff88807b914f58 FS: 0000000000000000(0000) GS:ffff888125557000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31122ff8 CR3: 000000005465a000 CR4: 0000000000350ef0 Call Trace: write_inode fs/fs-writeback.c:1582 [inline] __writeback_single_inode+0x75a/0x11a0 fs/fs-writeback.c:1825 writeback_sb_inodes+0x992/0x1a20 fs/fs-writeback.c:2054 wb_writeback+0x456/0xb70 fs/fs-writeback.c:2239 wb_do_writeback fs/fs-writeback.c:2386 [inline] wb_workfn+0x414/0xf50 fs/fs-writeback.c:2426 process_one_work kernel/workqueue.c:3276 [inline] process_scheduled_works+0xb6e/0x18c0 kernel/workqueue.c:3359 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3440 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x51e/0xb90 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 ce 3a 15 ff 81 e3 00 00 00 40 75 1c e8 81 36 15 ff 48 bb f8 f8 f8 f8 f8 f8 f8 f8 e9 dc f7 ff ff e8 6d 36 15 ff 90 <0f> 0b e8 65 36 15 ff e8 c0 83 82 fe eb dd 44 89 f1 80 e1 07 80 c1 RSP: 0018:ffffc9000dcbf1a0 EFLAGS: 00010293 RAX: ffffffff82b07e63 RBX: ffff88807b914f98 RCX: ffff88803039db80 RDX: 0000000000000000 RSI: ffffffff8e9c7580 RDI: 0000000000000000 RBP: ffffc9000dcbf328 R08: ffff88803039db80 R09: 0000000000000003 R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff92001b97e38 R14: 0000000000000000 R15: ffff88807b914f58 FS: 0000000000000000(0000) GS:ffff888125557000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3eeffe92f8 CR3: 0000000078212000 CR4: 0000000000350ef0