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kernel BUG at fs/hfs/inode.c:447!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4413 Comm: kworker/u4:12 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: writeback wb_workfn (flush-7:4)
RIP: 0010:hfs_write_inode+0xa1a/0xa20 fs/hfs/inode.c:447
Code: 8d ff e9 09 fe ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 54 fe ff ff 4c 89 f7 e8 10 9e 8d ff e9 47 fe ff ff e8 f6 99 48 ff <0f> 0b 0f 1f 40 00 55 41 57 41 56 41 54 53 48 89 fb 49 bf 00 00 00
RSP: 0018:ffffc900034df3c0 EFLAGS: 00010293
RAX: ffffffff823085aa RBX: ffff8880248a8e98 RCX: ffff88802c275940
RDX: 0000000000000000 RSI: ffffffff8c4e2ac0 RDI: 0000000000000000
RBP: ffffc900034df550 R08: ffff88802c275940 R09: 0000000000000003
R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff9200069be7c R14: 0000000000000000 R15: ffff8880248a8e58
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000001c030 CR3: 0000000044f96000 CR4: 00000000003506f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 write_inode fs/fs-writeback.c:1505 [inline]
 __writeback_single_inode+0x6c3/0xda0 fs/fs-writeback.c:1715
 writeback_sb_inodes+0xa4e/0x1680 fs/fs-writeback.c:1940
 wb_writeback+0x45d/0xbe0 fs/fs-writeback.c:2114
 wb_do_writeback fs/fs-writeback.c:2257 [inline]
 wb_workfn+0x43a/0xf20 fs/fs-writeback.c:2298
 process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
 worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Modules linked in:
---[ end trace 35f3fd472926dc18 ]---
RIP: 0010:hfs_write_inode+0xa1a/0xa20 fs/hfs/inode.c:447
Code: 8d ff e9 09 fe ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 54 fe ff ff 4c 89 f7 e8 10 9e 8d ff e9 47 fe ff ff e8 f6 99 48 ff <0f> 0b 0f 1f 40 00 55 41 57 41 56 41 54 53 48 89 fb 49 bf 00 00 00
RSP: 0018:ffffc900034df3c0 EFLAGS: 00010293
RAX: ffffffff823085aa RBX: ffff8880248a8e98 RCX: ffff88802c275940
RDX: 0000000000000000 RSI: ffffffff8c4e2ac0 RDI: 0000000000000000
RBP: ffffc900034df550 R08: ffff88802c275940 R09: 0000000000000003
R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff9200069be7c R14: 0000000000000000 R15: ffff8880248a8e58
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6068d32e9c CR3: 000000000c08e000 CR4: 00000000003506e0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400