IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
batman_adv: batadv0: Interface activated: batadv_slave_1
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
skbuff: skb_over_panic: text:00000000bbca7a72 len:65575 put:65575 head:00000000ecb5d5f7 data:0000000034cc643d tail:0x100cf end:0x6c0 dev:<NULL>
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:104!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8118 Comm: syz-executor754 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:skb_panic+0x172/0x174 net/core/skbuff.c:104
Code: 4c 24 10 8b 8b 80 00 00 00 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 60 4f 4c 89 ff 74 24 10 ff 74 24 20 e8 f1 18 e2 ff <0f> 0b e8 7f e7 50 f9 4c 8b 64 24 18 e8 c5 aa 86 f9 48 c7 c1 c0 58
RSP: 0018:ffff8880988c7468 EFLAGS: 00010286
RAX: 000000000000008f RBX: ffff8880aa7d4680 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1013118e7f
RBP: ffffffff894c5900 R08: 000000000000008f R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffffffff870297c8
R13: 0000000000010027 R14: ffffffff894c4f20 R15: 00000000000006c0
FS:  0000555557441300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8f3145b6c0 CR3: 00000000978d2000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_over_panic net/core/skbuff.c:109 [inline]
 skb_put.cold+0x24/0x24 net/core/skbuff.c:1711
 __ip6_append_data.isra.0+0x1d58/0x2e20 net/ipv6/ip6_output.c:1497
 ip6_append_data+0x1e7/0x330 net/ipv6/ip6_output.c:1633
 rawv6_sendmsg+0x1444/0x36a0 net/ipv6/raw.c:952
 inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2227
 __sys_sendmmsg+0x195/0x470 net/socket.c:2322
 __do_sys_sendmmsg net/socket.c:2351 [inline]
 __se_sys_sendmmsg net/socket.c:2348 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2348
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f1168c293f9
Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcae96f588 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007ffcae96f598 RCX: 00007f1168c293f9
RDX: 0000000000000001 RSI: 00000000200002c0 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe80 R11: 0000000000000246 R12: 00007ffcae96f5a0
R13: 00007ffcae96f5c0 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace b6e0052a87e94bcb ]---
RIP: 0010:skb_panic+0x172/0x174 net/core/skbuff.c:104
Code: 4c 24 10 8b 8b 80 00 00 00 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 60 4f 4c 89 ff 74 24 10 ff 74 24 20 e8 f1 18 e2 ff <0f> 0b e8 7f e7 50 f9 4c 8b 64 24 18 e8 c5 aa 86 f9 48 c7 c1 c0 58
RSP: 0018:ffff8880988c7468 EFLAGS: 00010286
RAX: 000000000000008f RBX: ffff8880aa7d4680 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1013118e7f
RBP: ffffffff894c5900 R08: 000000000000008f R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffffffff870297c8
R13: 0000000000010027 R14: ffffffff894c4f20 R15: 00000000000006c0
FS:  0000555557441300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007face2022000 CR3: 00000000978d2000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400