skbuff: skb_over_panic: text:ffffffff84466d07 len:40 put:40 head:ffff8881f73aae00 data:ffff8881f73aae40 tail:0x68 end:0x40 dev:syztnl1
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:112!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 124 Comm: kworker/0:2 Not tainted 5.15.74-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: mld mld_ifc_work
RIP: 0010:skb_panic+0x14c/0x150 net/core/skbuff.c:112
Code: c7 20 b5 9b 85 48 8b 75 c0 48 8b 55 b8 8b 4d d4 44 8b 45 d0 4c 8b 4d c8 31 c0 53 41 56 41 55 41 54 e8 bf ab da 00 48 83 c4 20 <0f> 0b 66 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 78 4c
RSP: 0018:ffffc90000b879b8 EFLAGS: 00010286
RAX: 0000000000000086 RBX: ffff8881224fe000 RCX: b01dc7dd020f1d00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90000b87a00 R08: ffffffff8157bf39 R09: ffffed103ee465a8
R10: ffffed103ee465a8 R11: 1ffff1103ee465a7 R12: ffff8881f73aae40
R13: 0000000000000068 R14: 0000000000000040 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011ef0c000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 skb_over_panic net/core/skbuff.c:117 [inline]
 skb_put+0x153/0x210 net/core/skbuff.c:2023
 ip6_mc_hdr net/ipv6/mcast.c:1714 [inline]
 mld_newpack+0x407/0xa00 net/ipv6/mcast.c:1765
 add_grhead net/ipv6/mcast.c:1851 [inline]
 add_grec+0xf56/0x13d0 net/ipv6/mcast.c:1989
 mld_send_cr net/ipv6/mcast.c:2115 [inline]
 mld_ifc_work+0x799/0xc30 net/ipv6/mcast.c:2653
 process_one_work+0x6db/0xc00 kernel/workqueue.c:2306
 worker_thread+0xb3e/0x1340 kernel/workqueue.c:2453
 kthread+0x41c/0x500 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30
 </TASK>
Modules linked in:
---[ end trace d3f765bc711f84bf ]---
RIP: 0010:skb_panic+0x14c/0x150 net/core/skbuff.c:112
Code: c7 20 b5 9b 85 48 8b 75 c0 48 8b 55 b8 8b 4d d4 44 8b 45 d0 4c 8b 4d c8 31 c0 53 41 56 41 55 41 54 e8 bf ab da 00 48 83 c4 20 <0f> 0b 66 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 78 4c
RSP: 0018:ffffc90000b879b8 EFLAGS: 00010286
RAX: 0000000000000086 RBX: ffff8881224fe000 RCX: b01dc7dd020f1d00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90000b87a00 R08: ffffffff8157bf39 R09: ffffed103ee465a8
R10: ffffed103ee465a8 R11: 1ffff1103ee465a7 R12: ffff8881f73aae40
R13: 0000000000000068 R14: 0000000000000040 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011ef0c000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400