R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
------------[ cut here ]------------
!orig_ifinfo
WARNING: net/batman-adv/bat_iv_ogm.c:1413 at batadv_iv_ogm_update_seqnos net/batman-adv/bat_iv_ogm.c:1413 [inline], CPU#0: syz.1.7958/347
WARNING: net/batman-adv/bat_iv_ogm.c:1413 at batadv_iv_ogm_process_per_outif+0x1fe4/0x25c0 net/batman-adv/bat_iv_ogm.c:1550, CPU#0: syz.1.7958/347
Modules linked in:
CPU: 0 UID: 0 PID: 347 Comm: syz.1.7958 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:batadv_iv_ogm_update_seqnos net/batman-adv/bat_iv_ogm.c:1413 [inline]
RIP: 0010:batadv_iv_ogm_process_per_outif+0x1fe4/0x25c0 net/batman-adv/bat_iv_ogm.c:1550
Code: ff ff e8 af ad 1c f6 49 bc 00 00 00 00 00 fc ff df e9 80 f4 ff ff e8 9b ad 1c f6 90 0f 0b 90 e9 47 e1 ff ff e8 8d ad 1c f6 90 <0f> 0b 90 48 8b bc 24 80 00 00 00 e8 6c df ff ff 48 c7 44 24 50 00
RSP: 0018:ffffc900058c7280 EFLAGS: 00010293
RAX: ffffffff8bab1d03 RBX: ffff8880223b7440 RCX: ffff888079608000
RDX: 0000000000000000 RSI: ffffffff8e475f59 RDI: ffffffff8c6d9a80
RBP: ffffc900058c7410 R08: ffffffff907a2b7f R09: 1ffffffff20f456f
R10: dffffc0000000000 R11: fffffbfff20f4570 R12: dffffc0000000000
R13: 0000000002020000 R14: ffff8880483f8000 R15: ffff8880223b7440
FS:  0000000000000000(0000) GS:ffff888124cd2000(0063) knlGS:00000000f5476b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f5455da4 CR3: 0000000073d2a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 00000000fee0000e DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 batadv_iv_ogm_process net/batman-adv/bat_iv_ogm.c:1866 [inline]
 batadv_iv_ogm_receive+0xc13/0x1740 net/batman-adv/bat_iv_ogm.c:1974
 batadv_batman_skb_recv+0x4b6/0x870 net/batman-adv/main.c:529
 __netif_receive_skb_one_core net/core/dev.c:6264 [inline]
 __netif_receive_skb net/core/dev.c:6377 [inline]
 netif_receive_skb_internal net/core/dev.c:6463 [inline]
 netif_receive_skb+0x4af/0xbf0 net/core/dev.c:6522
 tun_rx_batched+0x1de/0x790 drivers/net/tun.c:1571
 tun_get_user+0x2be0/0x44d0 drivers/net/tun.c:2045
 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2091
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:739
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x27a/0x6a0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7fb40ec
Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8
RSP: 002b:00000000f547650c EFLAGS: 00000206 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800
RDX: 0000000000000026 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	85 d2                	test   %edx,%edx
   3:	74 0a                	je     0xf
   5:	89 ce                	mov    %ecx,%esi
   7:	81 e6 ff 0f 00 00    	and    $0xfff,%esi
   d:	89 32                	mov    %esi,(%rdx)
   f:	85 c0                	test   %eax,%eax
  11:	74 05                	je     0x18
  13:	c1 e9 0c             	shr    $0xc,%ecx
  16:	89 08                	mov    %ecx,(%rax)
  18:	31 c0                	xor    %eax,%eax
  1a:	5e                   	pop    %rsi
  1b:	5d                   	pop    %rbp
  1c:	c3                   	ret
  1d:	90                   	nop
  1e:	0f 1f 00             	nopl   (%rax)
  21:	51                   	push   %rcx
  22:	52                   	push   %rdx
  23:	55                   	push   %rbp
  24:	89 e5                	mov    %esp,%ebp
  26:	0f 34                	sysenter
  28:	cd 80                	int    $0x80
* 2a:	5d                   	pop    %rbp <-- trapping instruction
  2b:	5a                   	pop    %rdx
  2c:	59                   	pop    %rcx
  2d:	c3                   	ret
  2e:	90                   	nop
  2f:	90                   	nop
  30:	90                   	nop
  31:	90                   	nop
  32:	90                   	nop
  33:	90                   	nop
  34:	90                   	nop
  35:	90                   	nop
  36:	90                   	nop
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	58                   	pop    %rax
  3f:	b8                   	.byte 0xb8