------------[ cut here ]------------
kernel BUG at fs/f2fs/data.c:356!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 3619 Comm: kworker/u8:13 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:f2fs_write_end_io+0xb52/0xb60 fs/f2fs/data.c:355
Code: e8 e3 3e 19 fe e9 91 f6 ff ff 89 d9 80 e1 07 38 c1 0f 8c e3 f6 ff ff 48 89 df e8 59 3f 19 fe e9 d6 f6 ff ff e8 2f 04 ba fd 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000e29f5f8 EFLAGS: 00010246
RAX: ffffffff84046b91 RBX: 0000000000000000 RCX: ffff888030f09dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: ffff88803d16c640 R08: 0000000000000000 R09: 0000000000000100
R10: dffffc0000000000 R11: fffff9400013cd31 R12: 0000000000000006
R13: ffffea00009e6980 R14: 000000000000000b R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881268bd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fedba024000 CR3: 0000000036f68000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 blk_update_request+0x57e/0xe60 block/blk-mq.c:989
 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1151
 blk_complete_reqs block/blk-mq.c:1226 [inline]
 blk_done_softirq+0x10a/0x160 block/blk-mq.c:1231
 handle_softirqs+0x22f/0x710 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 __local_bh_enable_ip+0x179/0x270 kernel/softirq.c:259
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 spin_unlock_bh include/linux/spinlock_rt.h:111 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:835 [inline]
 nsim_dev_trap_report_work+0x7f2/0xbc0 drivers/net/netdevsim/dev.c:866
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x439/0x7d0 arch/x86/kernel/process.c:148
 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+0xb52/0xb60 fs/f2fs/data.c:355
Code: e8 e3 3e 19 fe e9 91 f6 ff ff 89 d9 80 e1 07 38 c1 0f 8c e3 f6 ff ff 48 89 df e8 59 3f 19 fe e9 d6 f6 ff ff e8 2f 04 ba fd 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000e29f5f8 EFLAGS: 00010246
RAX: ffffffff84046b91 RBX: 0000000000000000 RCX: ffff888030f09dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: ffff88803d16c640 R08: 0000000000000000 R09: 0000000000000100
R10: dffffc0000000000 R11: fffff9400013cd31 R12: 0000000000000006
R13: ffffea00009e6980 R14: 000000000000000b R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881268bd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fedba024000 CR3: 0000000036f68000 CR4: 00000000003526f0