syzbot

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kernel BUG at fs/f2fs/data.c:358!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 79 Comm: kworker/u8:5 Not tainted 6.16.0-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: bat_events batadv_nc_worker
RIP: 0010:f2fs_write_end_io+0x806/0x810 fs/f2fs/data.c:357
Code: 80 35 1a fe e9 95 fe ff ff 44 89 f9 80 e1 07 38 c1 0f 8c ea fe ff ff 4c 89 ff e8 f5 35 1a fe e9 dd fe ff ff e8 4b 4e ba fd 90 <0f> 0b 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000a08c98 EFLAGS: 00010246
RAX: ffffffff8405d775 RBX: dffffc0000000000 RCX: ffff88801cf59e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 000000000000000b
RBP: ffff88802cb35a00 R08: ffffea0001e1c16f R09: 1ffffd40003c382d
R10: dffffc0000000000 R11: fffff940003c382e R12: 000000000000000b
R13: ffffea0001e1c140 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125d57000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f47489bd000 CR3: 0000000027f34000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 blk_update_request+0x5eb/0xe70 block/blk-mq.c:987
 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1149
 blk_complete_reqs block/blk-mq.c:1224 [inline]
 blk_done_softirq+0x107/0x160 block/blk-mq.c:1229
 handle_softirqs+0x283/0x870 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x175/0x360 kernel/locking/lockdep.c:5875
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 6b 55 fe 10 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc9000237f980 EFLAGS: 00000206
RAX: 4e8787c037617300 RBX: 0000000000000000 RCX: 4e8787c037617300
RDX: 0000000000000000 RSI: ffffffff8db6fcc6 RDI: ffffffff8be1ba40
RBP: ffffffff8b345592 R08: 0000000000000000 R09: ffffffff8b345592
R10: dffffc0000000000 R11: ffffffff8b3454c0 R12: 0000000000000002
R13: ffffffff8e13f0e0 R14: 0000000000000000 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 rcu_read_lock include/linux/rcupdate.h:841 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
 batadv_nc_worker+0xef/0x610 net/batman-adv/network-coding.c:719
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 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+0x806/0x810 fs/f2fs/data.c:357
Code: 80 35 1a fe e9 95 fe ff ff 44 89 f9 80 e1 07 38 c1 0f 8c ea fe ff ff 4c 89 ff e8 f5 35 1a fe e9 dd fe ff ff e8 4b 4e ba fd 90 <0f> 0b 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000a08c98 EFLAGS: 00010246
RAX: ffffffff8405d775 RBX: dffffc0000000000 RCX: ffff88801cf59e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 000000000000000b
RBP: ffff88802cb35a00 R08: ffffea0001e1c16f R09: 1ffffd40003c382d
R10: dffffc0000000000 R11: fffff940003c382e R12: 000000000000000b
R13: ffffea0001e1c140 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125d57000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f47489bd000 CR3: 0000000027f34000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	9c                   	pushf
   5:	8f 44 24 30          	pop    0x30(%rsp)
   9:	f7 44 24 30 00 02 00 	testl  $0x200,0x30(%rsp)
  10:	00
  11:	0f 85 cd 00 00 00    	jne    0xe4
  17:	f7 44 24 08 00 02 00 	testl  $0x200,0x8(%rsp)
  1e:	00
  1f:	74 01                	je     0x22
  21:	fb                   	sti
  22:	65 48 8b 05 6b 55 fe 	mov    %gs:0x10fe556b(%rip),%rax        # 0x10fe5595
  29:	10
* 2a:	48 3b 44 24 58       	cmp    0x58(%rsp),%rax <-- trapping instruction
  2f:	0f 85 f2 00 00 00    	jne    0x127
  35:	48 83 c4 60          	add    $0x60,%rsp
  39:	5b                   	pop    %rbx
  3a:	41 5c                	pop    %r12
  3c:	41 5d                	pop    %r13
  3e:	41 5e                	pop    %r14