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kernel BUG at net/core/skbuff.c:109!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 9624 Comm: kworker/1:4 Not tainted 5.12.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: mld mld_ifc_work
RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:109
Code: f8 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 80 ce 65 8a ff 74 24 10 ff 74 24 20 e8 7b c0 c4 ff <0f> 0b e8 e6 e4 73 f8 4c 8b 64 24 18 e8 dc b6 b7 f8 48 c7 c1 c0 da
RSP: 0018:ffffc90015f1f960 EFLAGS: 00010282
RAX: 0000000000000082 RBX: ffff88801364fa00 RCX: 0000000000000000
RDX: ffff888063908000 RSI: ffffffff815c51f5 RDI: fffff52002be3f1e
RBP: ffffffff8a65db00 R08: 0000000000000082 R09: 0000000000000000
R10: ffffffff815bdf8e R11: 0000000000000000 R12: ffffffff87bce89f
R13: 0000000000000028 R14: ffff88802cf16000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f25ffa0f280 CR3: 0000000015651000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_over_panic net/core/skbuff.c:114 [inline]
 skb_put.cold+0x24/0x24 net/core/skbuff.c:1914
 ip6_mc_hdr.constprop.0+0x11f/0x5c0 net/ipv6/mcast.c:1722
 mld_newpack+0x3d8/0x770 net/ipv6/mcast.c:1773
 add_grhead+0x265/0x330 net/ipv6/mcast.c:1859
 add_grec+0x10dd/0x14d0 net/ipv6/mcast.c:1997
 mld_send_cr net/ipv6/mcast.c:2123 [inline]
 mld_ifc_work+0x47d/0xdb0 net/ipv6/mcast.c:2660
 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
---[ end trace f5c31a5079df03ab ]---
RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:109
Code: f8 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 80 ce 65 8a ff 74 24 10 ff 74 24 20 e8 7b c0 c4 ff <0f> 0b e8 e6 e4 73 f8 4c 8b 64 24 18 e8 dc b6 b7 f8 48 c7 c1 c0 da
RSP: 0018:ffffc90015f1f960 EFLAGS: 00010282
RAX: 0000000000000082 RBX: ffff88801364fa00 RCX: 0000000000000000
RDX: ffff888063908000 RSI: ffffffff815c51f5 RDI: fffff52002be3f1e
RBP: ffffffff8a65db00 R08: 0000000000000082 R09: 0000000000000000
R10: ffffffff815bdf8e R11: 0000000000000000 R12: ffffffff87bce89f
R13: 0000000000000028 R14: ffff88802cf16000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6ea55b2018 CR3: 0000000025ce7000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400