------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2620!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 2911 Comm: kworker/u8:6 Not tainted 6.14.0-rc6-syzkaller-00244-g31d7109a19f6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: writeback wb_workfn (flush-7:6)
RIP: 0010:ext4_do_writepages+0x3de9/0x3df0 fs/ext4/inode.c:2619
Code: cf 8e 4c 89 f2 e8 07 7d aa 02 e9 7d fb ff ff e8 9d f1 45 ff 90 0f 0b e8 95 f1 45 ff 90 0f 0b e8 3d ff 84 09 e8 88 f1 45 ff 90 <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000bc96c20 EFLAGS: 00010293
RAX: ffffffff827bede8 RBX: 0000004000000000 RCX: ffff888030c19e00
RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000
RBP: ffffc9000bc97030 R08: ffffffff827bb505 R09: 1ffff1100beba8b5
R10: dffffc0000000000 R11: ffffed100beba8b6 R12: 0000000000000001
R13: ffffc9000bc97520 R14: 0000004210000000 R15: ffff88805f5d4808
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556a91c608 CR3: 000000002a51e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2824
 do_writepages+0x35f/0x880 mm/page-writeback.c:2687
 __writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1680
 writeback_sb_inodes+0x820/0x1360 fs/fs-writeback.c:1976
 wb_writeback+0x413/0xb80 fs/fs-writeback.c:2156
 wb_do_writeback fs/fs-writeback.c:2303 [inline]
 wb_workfn+0x410/0x1080 fs/fs-writeback.c:2343
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd30 kernel/workqueue.c:3400
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_do_writepages+0x3de9/0x3df0 fs/ext4/inode.c:2619
Code: cf 8e 4c 89 f2 e8 07 7d aa 02 e9 7d fb ff ff e8 9d f1 45 ff 90 0f 0b e8 95 f1 45 ff 90 0f 0b e8 3d ff 84 09 e8 88 f1 45 ff 90 <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000bc96c20 EFLAGS: 00010293
RAX: ffffffff827bede8 RBX: 0000004000000000 RCX: ffff888030c19e00
RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000
RBP: ffffc9000bc97030 R08: ffffffff827bb505 R09: 1ffff1100beba8b5
R10: dffffc0000000000 R11: ffffed100beba8b6 R12: 0000000000000001
R13: ffffc9000bc97520 R14: 0000004210000000 R15: ffff88805f5d4808
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4a1af6f991 CR3: 00000000330d8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400