R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f8296626038 R14: 00007f8296625fa0 R15: 00007ffeb9202138 ------------[ 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#1: syz.2.443/7318 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#1: syz.2.443/7318 Modules linked in: CPU: 1 UID: 0 PID: 7318 Comm: syz.2.443 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP 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 19 41 e5 f6 e9 ae d3 ff ff e8 1f 06 71 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:ffffc900038b7480 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000c0000000 RCX: 0000000000000200 RDX: ffff8880326aa580 RSI: ffffffff8b9b4431 RDI: ffffffff8c624f80 RBP: ffff8880366baa80 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 R13: ffff888059b29000 R14: ffff88803e72f900 R15: ffff888056558000 FS: 00007f82945f66c0(0000) GS:ffff8880d4a47000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f82945f5ff8 CR3: 0000000027bdf000 CR4: 0000000000352ef0 Call Trace: 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:6297 __netif_receive_skb+0x1f/0x120 net/core/dev.c:6410 netif_receive_skb_internal net/core/dev.c:6496 [inline] netif_receive_skb+0x139/0x7d0 net/core/dev.c:6555 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: 0033:0x7f829639e199 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:00007f82945f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f8296625fa0 RCX: 00007f829639e199 RDX: 0000000000000026 RSI: 0000200000000700 RDI: 0000000000000003 RBP: 00007f82945f6090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f8296626038 R14: 00007f8296625fa0 R15: 00007ffeb9202138