------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2619!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 3 UID: 0 PID: 67 Comm: kworker/u32:3 Not tainted 6.13.0-rc5-syzkaller-g0bc21e701a6f #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:ext4_do_writepages+0x2549/0x32d0 fs/ext4/inode.c:2619
Code: 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 84 98 ec ff ff 48 8b bd 20 ff ff ff e8 d2 49 ab ff e9 87 ec ff ff e8 78 9d 48 ff 90 <0f> 0b e8 70 9d 48 ff 90 0f 0b 90 e9 ac ec ff ff e8 62 9d 48 ff 90
RSP: 0018:ffffc90000d4f250 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888035c5ed48 RCX: ffffffff825163aa
RDX: ffff888020912440 RSI: ffffffff825178a8 RDI: 0000000000000007
RBP: ffffc90000d4f420 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffc90000d4f478
R13: 0000000000000001 R14: ffffc90000d4f478 R15: ffff888035c5efa8
FS:  0000000000000000(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001530000 CR3: 000000002ef84000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_writepages+0x303/0x730 fs/ext4/inode.c:2824
 do_writepages+0x1b3/0x820 mm/page-writeback.c:2702
 __writeback_single_inode+0x166/0xfa0 fs/fs-writeback.c:1680
 writeback_sb_inodes+0x606/0xfa0 fs/fs-writeback.c:1976
 wb_writeback+0x422/0xb80 fs/fs-writeback.c:2156
 wb_do_writeback fs/fs-writeback.c:2303 [inline]
 wb_workfn+0x151/0xbc0 fs/fs-writeback.c:2343
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 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+0x2549/0x32d0 fs/ext4/inode.c:2619
Code: 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 84 98 ec ff ff 48 8b bd 20 ff ff ff e8 d2 49 ab ff e9 87 ec ff ff e8 78 9d 48 ff 90 <0f> 0b e8 70 9d 48 ff 90 0f 0b 90 e9 ac ec ff ff e8 62 9d 48 ff 90
RSP: 0018:ffffc90000d4f250 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888035c5ed48 RCX: ffffffff825163aa
RDX: ffff888020912440 RSI: ffffffff825178a8 RDI: 0000000000000007
RBP: ffffc90000d4f420 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffc90000d4f478
R13: 0000000000000001 R14: ffffc90000d4f478 R15: ffff888035c5efa8
FS:  0000000000000000(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001530000 CR3: 000000002ef84000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400