------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2761!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 12986 Comm: kworker/u4:103 Tainted: G        W          syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: writeback wb_workfn (flush-7:8)
RIP: 0010:ext4_writepages+0x2ff8/0x3020 fs/ext4/inode.c:2760
Code: b1 86 ff 84 db 75 31 e8 16 af 86 ff 49 bc 00 00 00 00 00 fc ff df 4c 8b 7c 24 18 4c 8b 6c 24 38 e9 a2 f7 ff ff e8 f8 ae 86 ff <0f> 0b e8 f1 ae 86 ff e8 38 22 17 ff eb 93 e8 e5 ae 86 ff e8 2c 22
RSP: 0018:ffffc90001157120 EFLAGS: 00010293
RAX: ffffffff81e95868 RBX: 0000008410000000 RCX: ffff8881244c3cc0
RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
RBP: ffffc90001157490 R08: dffffc0000000000 R09: ffffed10227a75c3
R10: ffffed10227a75c3 R11: 1ffff110227a75c2 R12: dffffc0000000000
R13: ffff888113d3af28 R14: 0000008000000000 R15: ffff888113d3ae10
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007febfab37000 CR3: 000000013e67c000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000006800 DR2: 0000000000009951
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_writepages+0x3a9/0x5e0 mm/page-writeback.c:2494
 __writeback_single_inode+0xc6/0xad0 fs/fs-writeback.c:1612
 writeback_sb_inodes+0x9b8/0x1550 fs/fs-writeback.c:1903
 wb_writeback+0x3f1/0x980 fs/fs-writeback.c:2079
 wb_do_writeback fs/fs-writeback.c:2226 [inline]
 wb_workfn+0x350/0xda0 fs/fs-writeback.c:2266
 process_one_work+0x71f/0xc40 kernel/workqueue.c:2302
 worker_thread+0xa29/0x11f0 kernel/workqueue.c:2449
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_writepages+0x2ff8/0x3020 fs/ext4/inode.c:2760
Code: b1 86 ff 84 db 75 31 e8 16 af 86 ff 49 bc 00 00 00 00 00 fc ff df 4c 8b 7c 24 18 4c 8b 6c 24 38 e9 a2 f7 ff ff e8 f8 ae 86 ff <0f> 0b e8 f1 ae 86 ff e8 38 22 17 ff eb 93 e8 e5 ae 86 ff e8 2c 22
RSP: 0018:ffffc90001157120 EFLAGS: 00010293
RAX: ffffffff81e95868 RBX: 0000008410000000 RCX: ffff8881244c3cc0
RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
RBP: ffffc90001157490 R08: dffffc0000000000 R09: ffffed10227a75c3
R10: ffffed10227a75c3 R11: 1ffff110227a75c2 R12: dffffc0000000000
R13: ffff888113d3af28 R14: 0000008000000000 R15: ffff888113d3ae10
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fec04167f98 CR3: 0000000121a37000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000006800 DR2: 0000000000009951
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400