skbuff: skb_under_panic: text:ffffffff8a336628 len:120 put:44 head:ffff88808b097000 data:ffff88808b096fe4 tail:0x5c end:0x6c0 dev:macvtap1
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:193!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 PID: 24 Comm: kworker/1:0 Not tainted 6.8.0-rc3-next-20240205-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: mld mld_ifc_work
RIP: 0010:skb_panic net/core/skbuff.c:193 [inline]
RIP: 0010:skb_under_panic+0x14b/0x150 net/core/skbuff.c:203
Code: 9f 8c 48 c7 c6 b6 01 a7 8d 48 8b 54 24 08 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 41 54 41 57 41 56 e8 0a 58 2b 02 48 83 c4 20 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3
RSP: 0018:ffffc900001e73b8 EFLAGS: 00010286
RAX: 000000000000008a RBX: dffffc0000000000 RCX: 6ac08c8247a5b600
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff88802388bb50 R08: ffffffff8175b58c R09: 1ffff110172a51a2
R10: dffffc0000000000 R11: ffffed10172a51a3 R12: 00000000000006c0
R13: ffff88808b097000 R14: ffff88808b096fe4 R15: 000000000000005c
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1f6ddcc048 CR3: 000000007dd16000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 skb_push+0xe5/0x100 net/core/skbuff.c:2489
 ip6gre_header+0xc8/0x950 net/ipv6/ip6_gre.c:1384
 dev_hard_header include/linux/netdevice.h:3225 [inline]
 vlan_dev_hard_header+0x359/0x480 net/8021q/vlan_dev.c:83
 dev_hard_header include/linux/netdevice.h:3225 [inline]
 neigh_resolve_output+0x4de/0x720 net/core/neighbour.c:1558
 neigh_output include/net/neighbour.h:542 [inline]
 ip6_finish_output2+0xfed/0x1660 net/ipv6/ip6_output.c:137
 ip6_finish_output+0x41e/0x810 net/ipv6/ip6_output.c:222
 NF_HOOK+0x9e/0x430 include/linux/netfilter.h:314
 mld_sendpack+0x838/0xda0 net/ipv6/mcast.c:1818
 mld_send_cr net/ipv6/mcast.c:2119 [inline]
 mld_ifc_work+0x807/0xb30 net/ipv6/mcast.c:2650
 process_one_work kernel/workqueue.c:3102 [inline]
 process_scheduled_works+0x9d7/0x1730 kernel/workqueue.c:3182
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3263
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:skb_panic net/core/skbuff.c:193 [inline]
RIP: 0010:skb_under_panic+0x14b/0x150 net/core/skbuff.c:203
Code: 9f 8c 48 c7 c6 b6 01 a7 8d 48 8b 54 24 08 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 41 54 41 57 41 56 e8 0a 58 2b 02 48 83 c4 20 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3
RSP: 0018:ffffc900001e73b8 EFLAGS: 00010286
RAX: 000000000000008a RBX: dffffc0000000000 RCX: 6ac08c8247a5b600
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff88802388bb50 R08: ffffffff8175b58c R09: 1ffff110172a51a2
R10: dffffc0000000000 R11: ffffed10172a51a3 R12: 00000000000006c0
R13: ffff88808b097000 R14: ffff88808b096fe4 R15: 000000000000005c
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f83e15ff000 CR3: 000000007dd16000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400