R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fea97826038 R14: 00007fea97825fa0 R15: 00007ffdede1f5d8
 </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.2.73/6084
WARNING: net/batman-adv/bat_iv_ogm.c:1413 at batadv_iv_ogm_process_per_outif+0x2d62/0x3980 net/batman-adv/bat_iv_ogm.c:1550, CPU#0: syz.2.73/6084
Modules linked in:
CPU: 0 UID: 0 PID: 6084 Comm: syz.2.73 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:batadv_iv_ogm_update_seqnos net/batman-adv/bat_iv_ogm.c:1413 [inline]
RIP: 0010:batadv_iv_ogm_process_per_outif+0x2d62/0x3980 net/batman-adv/bat_iv_ogm.c:1550
Code: 48 83 7c 24 68 00 48 c7 44 24 78 00 00 00 00 0f 85 7d da ff ff e9 df da ff ff e8 29 f3 e5 f6 e9 ae d3 ff ff e8 0f 89 72 f6 90 <0f> 0b 90 49 8d 9d 20 02 00 00 be 04 00 00 00 bd ff ff ff ff 48 89
RSP: 0018:ffffc90004977480 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000001000000 RCX: 0000000000000200
RDX: ffff8880266ecb00 RSI: ffffffff8b99bbc1 RDI: ffffffff8c623980
RBP: ffff888036b3f780 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff888025748000 R14: ffff8880373663c0 R15: ffff88802700c000
FS:  00007fea9849d6c0(0000) GS:ffff8880d5b4f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea9835da08 CR3: 000000005845f000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 batadv_iv_ogm_process net/batman-adv/bat_iv_ogm.c:1866 [inline]
 batadv_iv_ogm_receive+0x1049/0x1ae0 net/batman-adv/bat_iv_ogm.c:1974
 batadv_batman_skb_recv+0x5e0/0x850 net/batman-adv/main.c:529
 __netif_receive_skb_one_core+0x1b2/0x1e0 net/core/dev.c:6265
 __netif_receive_skb+0x1f/0x120 net/core/dev.c:6378
 netif_receive_skb_internal net/core/dev.c:6464 [inline]
 netif_receive_skb+0x139/0x7d0 net/core/dev.c:6523
 tun_rx_batched.isra.0+0x3f6/0x750 drivers/net/tun.c:1595
 tun_get_user+0x1f53/0x3cc0 drivers/net/tun.c:2045
 tun_chr_write_iter+0xdc/0x200 drivers/net/tun.c:2091
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6af/0x1050 fs/read_write.c:687
 ksys_write+0x12a/0x250 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fea9759e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fea9849d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fea97825fa0 RCX: 00007fea9759e159
RDX: 0000000000000026 RSI: 0000200000000700 RDI: 0000000000000004
RBP: 00007fea9849d090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fea97826038 R14: 00007fea97825fa0 R15: 00007ffdede1f5d8
 </TASK>