------------[ cut here ]------------
kernel BUG at fs/f2fs/data.c:392!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 2174 Comm: kworker/u8:13 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:f2fs_write_end_bio fs/f2fs/data.c:392 [inline]
RIP: 0010:f2fs_write_end_io+0x16a8/0x1710 fs/f2fs/data.c:418
Code: c6 e0 fb 9b 8b e8 c8 a0 ef fc 90 0f 0b e8 f0 13 8d fd 4c 89 f7 48 c7 c6 e0 fb 9b 8b e8 b1 a0 ef fc 90 0f 0b e8 d9 13 8d fd 90 <0f> 0b e8 d1 13 8d fd 4c 89 f7 48 c7 c6 e0 fb 9b 8b e8 92 a0 ef fc
RSP: 0018:ffffc90006337790 EFLAGS: 00010246
RAX: ffffffff84381477 RBX: 000000000000000b RCX: ffff88802b97dd00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: dffffc0000000000 R11: fffffbfff1f15fdf R12: ffffea0001076900
R13: 0000000041da3000 R14: ffffea00010768c0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888126111000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c333e41048 CR3: 0000000041cd2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 blk_update_request+0x57b/0xe50 block/blk-mq.c:1016
 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1147
 blk_complete_reqs block/blk-mq.c:1222 [inline]
 blk_done_softirq+0x10a/0x160 block/blk-mq.c:1227
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 __local_bh_enable_ip+0x170/0x2b0 kernel/softirq.c:302
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 __alloc_skb+0x1ad/0x7a0 net/core/skbuff.c:699
 alloc_skb include/linux/skbuff.h:1384 [inline]
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:819 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:876 [inline]
 nsim_dev_trap_report_work+0x2b1/0xcb0 drivers/net/netdevsim/dev.c:922
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 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_bio fs/f2fs/data.c:392 [inline]
RIP: 0010:f2fs_write_end_io+0x16a8/0x1710 fs/f2fs/data.c:418
Code: c6 e0 fb 9b 8b e8 c8 a0 ef fc 90 0f 0b e8 f0 13 8d fd 4c 89 f7 48 c7 c6 e0 fb 9b 8b e8 b1 a0 ef fc 90 0f 0b e8 d9 13 8d fd 90 <0f> 0b e8 d1 13 8d fd 4c 89 f7 48 c7 c6 e0 fb 9b 8b e8 92 a0 ef fc
RSP: 0018:ffffc90006337790 EFLAGS: 00010246
RAX: ffffffff84381477 RBX: 000000000000000b RCX: ffff88802b97dd00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: dffffc0000000000 R11: fffffbfff1f15fdf R12: ffffea0001076900
R13: 0000000041da3000 R14: ffffea00010768c0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888126111000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c333e41048 CR3: 0000000041cd2000 CR4: 00000000003526f0