wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
------------[ cut here ]------------
kernel BUG at fs/hfs/inode.c:455!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: writeback wb_workfn (flush-7:3)
RIP: 0010:hfs_write_inode+0x84e/0x870 fs/hfs/inode.c:455
Code: c7 c1 c0 56 82 8b 41 b8 b7 01 00 00 49 c7 c1 60 59 82 8b 41 ff 36 e8 b1 db 20 02 48 83 c4 08 e9 76 f8 ff ff e8 63 c7 20 ff 90 <0f> 0b 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 99 4c 89 f7 e8 bb 88 86
RSP: 0018:ffffc90000117160 EFLAGS: 00010293
RAX: ffffffff829f3c6d RBX: ffff8880297f1518 RCX: ffff88801c6b5ac0
RDX: 0000000000000000 RSI: ffffffff8e16b340 RDI: 0000000000000000
RBP: ffffc900001172f0 R08: ffff88801c6b5ac0 R09: 0000000000000003
R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff92000022e30 R14: 0000000000000000 R15: ffff8880297f14d8
FS:  0000000000000000(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ef73277078 CR3: 00000000579d4000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 write_inode fs/fs-writeback.c:1564 [inline]
 __writeback_single_inode+0x6f1/0xff0 fs/fs-writeback.c:1784
 writeback_sb_inodes+0x6c7/0x1010 fs/fs-writeback.c:2015
 wb_writeback+0x43b/0xaf0 fs/fs-writeback.c:2195
 wb_do_writeback fs/fs-writeback.c:2342 [inline]
 wb_workfn+0x409/0xef0 fs/fs-writeback.c:2382
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hfs_write_inode+0x84e/0x870 fs/hfs/inode.c:455
Code: c7 c1 c0 56 82 8b 41 b8 b7 01 00 00 49 c7 c1 60 59 82 8b 41 ff 36 e8 b1 db 20 02 48 83 c4 08 e9 76 f8 ff ff e8 63 c7 20 ff 90 <0f> 0b 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 99 4c 89 f7 e8 bb 88 86
RSP: 0018:ffffc90000117160 EFLAGS: 00010293
RAX: ffffffff829f3c6d RBX: ffff8880297f1518 RCX: ffff88801c6b5ac0
RDX: 0000000000000000 RSI: ffffffff8e16b340 RDI: 0000000000000000
RBP: ffffc900001172f0 R08: ffff88801c6b5ac0 R09: 0000000000000003
R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff92000022e30 R14: 0000000000000000 R15: ffff8880297f14d8
FS:  0000000000000000(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9155a63f98 CR3: 0000000057a0f000 CR4: 0000000000350ef0