------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2747!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.15.189-syzkaller-1081280-gf32b52534f1d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:ext4_writepages+0x2f75/0x2f90 fs/ext4/inode.c:2746
Code: 00 00 00 e8 4d 88 8f ff 84 db 75 2c e8 b4 85 8f ff 49 bc 00 00 00 00 00 fc ff df 48 8b 5c 24 20 e9 d6 f7 ff ff e8 9b 85 8f ff <0f> 0b e8 94 85 8f ff e8 8b 4c 27 ff eb a2 e8 88 85 8f ff e8 7f 4c
RSP: 0018:ffffc90000087100 EFLAGS: 00010293
RAX: ffffffff81d92a35 RBX: 000000c410000000 RCX: ffff8881002713c0
RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
RBP: ffffc90000087470 R08: dffffc0000000000 R09: ffffed10241345e3
R10: ffffed10241345e3 R11: 1ffff110241345e2 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000008000000000 R15: ffff8881209a31a8
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555676a818 CR3: 000000010d310000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_writepages+0x48a/0x6c0 mm/page-writeback.c:2388
 __writeback_single_inode+0xd5/0x9c0 fs/fs-writeback.c:1647
 writeback_sb_inodes+0x9c0/0x1590 fs/fs-writeback.c:1930
 wb_writeback+0x3f1/0x980 fs/fs-writeback.c:2106
 wb_do_writeback fs/fs-writeback.c:2253 [inline]
 wb_workfn+0x38f/0xe20 fs/fs-writeback.c:2294
 process_one_work+0x6be/0xba0 kernel/workqueue.c:2325
 worker_thread+0xa59/0x1200 kernel/workqueue.c:2472
 kthread+0x411/0x500 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Modules linked in:
---[ end trace 49a4a8e064ab6907 ]---
RIP: 0010:ext4_writepages+0x2f75/0x2f90 fs/ext4/inode.c:2746
Code: 00 00 00 e8 4d 88 8f ff 84 db 75 2c e8 b4 85 8f ff 49 bc 00 00 00 00 00 fc ff df 48 8b 5c 24 20 e9 d6 f7 ff ff e8 9b 85 8f ff <0f> 0b e8 94 85 8f ff e8 8b 4c 27 ff eb a2 e8 88 85 8f ff e8 7f 4c
RSP: 0018:ffffc90000087100 EFLAGS: 00010293
RAX: ffffffff81d92a35 RBX: 000000c410000000 RCX: ffff8881002713c0
RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
RBP: ffffc90000087470 R08: dffffc0000000000 R09: ffffed10241345e3
R10: ffffed10241345e3 R11: 1ffff110241345e2 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000008000000000 R15: ffff8881209a31a8
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555676a818 CR3: 000000010d333000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400