------------[ cut here ]------------
kernel BUG at fs/f2fs/data.c:356!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 68 Comm: kworker/u8:4 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Workqueue: bat_events batadv_nc_worker
RIP: 0010:f2fs_write_end_io+0xb52/0xb60 fs/f2fs/data.c:355
Code: e8 63 d7 17 fe e9 91 f6 ff ff 89 d9 80 e1 07 38 c1 0f 8c e3 f6 ff ff 48 89 df e8 d9 d7 17 fe e9 d6 f6 ff ff e8 7f fb b6 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:ffffc9000153f598 EFLAGS: 00010246
RAX: ffffffff840633f1 RBX: 0000000000000000 RCX: ffff88801cb41e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: ffff88805d2d5780 R08: 0000000000000000 R09: 0000000000000100
R10: dffffc0000000000 R11: fffff940001b8be9 R12: 0000000000000006
R13: ffffea0000dc5f40 R14: 000000000000000b R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888127122000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1770437d60 CR3: 0000000034736000 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+0x107/0x160 block/blk-mq.c:1231
 handle_softirqs+0x22f/0x710 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 __local_bh_enable_ip+0x1a0/0x2e0 kernel/softirq.c:302
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 spin_unlock_bh include/linux/spinlock_rt.h:111 [inline]
 batadv_nc_purge_paths+0x34d/0x3f0 net/batman-adv/network-coding.c:471
 batadv_nc_worker+0x87e/0xbc0 net/batman-adv/network-coding.c:720
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 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 63 d7 17 fe e9 91 f6 ff ff 89 d9 80 e1 07 38 c1 0f 8c e3 f6 ff ff 48 89 df e8 d9 d7 17 fe e9 d6 f6 ff ff e8 7f fb b6 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:ffffc9000153f598 EFLAGS: 00010246
RAX: ffffffff840633f1 RBX: 0000000000000000 RCX: ffff88801cb41e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: ffff88805d2d5780 R08: 0000000000000000 R09: 0000000000000100
R10: dffffc0000000000 R11: fffff940001b8be9 R12: 0000000000000006
R13: ffffea0000dc5f40 R14: 000000000000000b R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888127122000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1770437d60 CR3: 0000000034736000 CR4: 00000000003526f0