------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:444! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 1168 Comm: kworker/u8:9 Not tainted 6.16.0-rc5-syzkaller-00038-g733923397fd9 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: writeback wb_workfn (flush-7:0) RIP: 0010:hfs_write_inode+0x7c8/0x7d0 fs/hfs/inode.c:444 Code: c1 20 92 ac 99 80 e1 07 80 c1 03 38 c1 0f 8c 7d fe ff ff 48 c7 c7 20 92 ac 99 e8 c3 39 89 ff e9 6c fe ff ff e8 f9 e1 27 ff 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000407f100 EFLAGS: 00010293 RAX: ffffffff82984357 RBX: ffff888033f39518 RCX: ffff8880271abc00 RDX: 0000000000000000 RSI: ffffffff8e365a00 RDI: 0000000000000000 RBP: ffffc9000407f290 R08: ffff8880271abc00 R09: 0000000000000003 R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff9200080fe24 R14: ffff888033f394d8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125d4f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa604c6a8c0 CR3: 0000000034482000 CR4: 00000000003526f0 Call Trace: write_inode fs/fs-writeback.c:1525 [inline] __writeback_single_inode+0x6f1/0xff0 fs/fs-writeback.c:1745 writeback_sb_inodes+0x6b5/0x1000 fs/fs-writeback.c:1976 __writeback_inodes_wb+0x111/0x240 fs/fs-writeback.c:2047 wb_writeback+0x44f/0xaf0 fs/fs-writeback.c:2158 wb_check_old_data_flush fs/fs-writeback.c:2262 [inline] wb_do_writeback fs/fs-writeback.c:2315 [inline] wb_workfn+0xaef/0xef0 fs/fs-writeback.c:2343 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x711/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hfs_write_inode+0x7c8/0x7d0 fs/hfs/inode.c:444 Code: c1 20 92 ac 99 80 e1 07 80 c1 03 38 c1 0f 8c 7d fe ff ff 48 c7 c7 20 92 ac 99 e8 c3 39 89 ff e9 6c fe ff ff e8 f9 e1 27 ff 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000407f100 EFLAGS: 00010293 RAX: ffffffff82984357 RBX: ffff888033f39518 RCX: ffff8880271abc00 RDX: 0000000000000000 RSI: ffffffff8e365a00 RDI: 0000000000000000 RBP: ffffc9000407f290 R08: ffff8880271abc00 R09: 0000000000000003 R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff9200080fe24 R14: ffff888033f394d8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125d4f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa604c35ac3 CR3: 0000000029b3a000 CR4: 00000000003526f0