------------[ cut here ]------------
kernel BUG at fs/f2fs/data.c:358!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 12 Comm: kworker/u4:0 Not tainted 6.15.0-rc7-syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: loop0 loop_rootcg_workfn
RIP: 0010:f2fs_write_end_io+0x6cc/0x6d0 fs/f2fs/data.c:357
Code: 2a 80 1e fe e9 d1 fa ff ff 44 89 f1 80 e1 07 38 c1 0f 8c 27 fb ff ff 4c 89 f7 e8 af 7f 1e fe e9 1a fb ff ff e8 e5 84 bc fd 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41
RSP: 0018:ffffc900001e7530 EFLAGS: 00010293
RAX: ffffffff84036ceb RBX: ffffc900001e7568 RCX: ffff88801ab64880
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: ffffea0000023680 R08: ffffea00000236af R09: 1ffffd40000046d5
R10: dffffc0000000000 R11: fffff940000046d6 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7aa61ec970 CR3: 0000000011700000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 blk_update_request+0x5ee/0xe80 block/blk-mq.c:983
 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1145
 lo_rw_aio_do_completion drivers/block/loop.c:317 [inline]
 lo_rw_aio_complete drivers/block/loop.c:325 [inline]
 lo_rw_aio+0xda6/0xf30 drivers/block/loop.c:398
 do_req_filebacked drivers/block/loop.c:-1 [inline]
 loop_handle_cmd drivers/block/loop.c:1889 [inline]
 loop_process_work+0x804/0xf30 drivers/block/loop.c:1924
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xadb/0x17a0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:f2fs_write_end_io+0x6cc/0x6d0 fs/f2fs/data.c:357
Code: 2a 80 1e fe e9 d1 fa ff ff 44 89 f1 80 e1 07 38 c1 0f 8c 27 fb ff ff 4c 89 f7 e8 af 7f 1e fe e9 1a fb ff ff e8 e5 84 bc fd 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41
RSP: 0018:ffffc900001e7530 EFLAGS: 00010293
RAX: ffffffff84036ceb RBX: ffffc900001e7568 RCX: ffff88801ab64880
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: ffffea0000023680 R08: ffffea00000236af R09: 1ffffd40000046d5
R10: dffffc0000000000 R11: fffff940000046d6 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d1e0571168 CR3: 0000000051742000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400