------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:2306!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 5684 Comm: kworker/0:18 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: mld mld_ifc_work
RIP: 0010:pskb_expand_head+0x12da/0x1320 net/core/skbuff.c:2306
Code: f8 e9 81 f3 ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c e0 f3 ff ff 4c 89 ff e8 b1 b3 ba f8 e9 d3 f3 ff ff e8 87 8e 50 f8 90 <0f> 0b e8 7f 8e 50 f8 90 0f 0b 44 89 f9 80 e1 07 80 c1 03 38 c1 0f
RSP: 0018:ffffc9000c6a7590 EFLAGS: 00010293
RAX: ffffffff8974fd29 RBX: ffff88807d2a2140 RCX: ffff88809739dac0
RDX: 0000000000000000 RSI: 0000000093ca87a0 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000004c
R10: dffffc0000000000 R11: ffffffff8a32f690 R12: dffffc0000000000
R13: 0000000000000820 R14: 0000000093ca87a0 R15: 00000000000006c0
FS:  0000000000000000(0000) GS:ffff888125464000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa7c57e82f8 CR3: 000000004bbb6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ipgre_header+0xd5/0x350 net/ipv4/ip_gre.c:900
 dev_hard_header include/linux/netdevice.h:3439 [inline]
 neigh_connected_output+0x286/0x460 net/core/neighbour.c:1643
 NF_HOOK_COND include/linux/netfilter.h:307 [inline]
 ip6_output+0x340/0x550 net/ipv6/ip6_output.c:246
 dst_output include/net/dst.h:470 [inline]
 NF_HOOK+0x177/0x4f0 include/linux/netfilter.h:318
 mld_sendpack+0x8b4/0xe40 net/ipv6/mcast.c:1855
 mld_send_cr net/ipv6/mcast.c:2154 [inline]
 mld_ifc_work+0x835/0xe70 net/ipv6/mcast.c:2693
 process_one_work kernel/workqueue.c:3275 [inline]
 process_scheduled_works+0xb02/0x1830 kernel/workqueue.c:3358
 worker_thread+0xa50/0xfc0 kernel/workqueue.c:3439
 kthread+0x388/0x470 kernel/kthread.c:467
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:pskb_expand_head+0x12da/0x1320 net/core/skbuff.c:2306
Code: f8 e9 81 f3 ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c e0 f3 ff ff 4c 89 ff e8 b1 b3 ba f8 e9 d3 f3 ff ff e8 87 8e 50 f8 90 <0f> 0b e8 7f 8e 50 f8 90 0f 0b 44 89 f9 80 e1 07 80 c1 03 38 c1 0f
RSP: 0018:ffffc9000c6a7590 EFLAGS: 00010293
RAX: ffffffff8974fd29 RBX: ffff88807d2a2140 RCX: ffff88809739dac0
RDX: 0000000000000000 RSI: 0000000093ca87a0 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000004c
R10: dffffc0000000000 R11: ffffffff8a32f690 R12: dffffc0000000000
R13: 0000000000000820 R14: 0000000093ca87a0 R15: 00000000000006c0
FS:  0000000000000000(0000) GS:ffff888125464000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f68f31e6158 CR3: 000000003782e000 CR4: 00000000003526f0