------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:2306!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 789 Comm: kworker/1:2 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: mld mld_ifc_work
RIP: 0010:pskb_expand_head+0xa08/0xfe0 net/core/skbuff.c:2306
Code: 7e d4 ae f8 be 01 00 00 00 48 89 df e8 31 ec ff ff e9 ea f9 ff ff e8 67 d4 ae f8 90 0f 0b 90 45 31 ed eb 80 e8 59 d4 ae f8 90 <0f> 0b e8 51 d4 ae f8 90 0f 0b e8 49 d4 ae f8 81 cd 00 00 02 00 e9
RSP: 0018:ffffc900037d7620 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880292e3a00 RCX: ffffffff8959dcce
RDX: ffff88802688a4c0 RSI: ffffffff8959e607 RDI: ffff88802688a4c0
RBP: 0000000000000820 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000961a7380 R11: 0000000000000000 R12: ffff8880292e3a00
R13: 00000000961a7a40 R14: dffffc0000000000 R15: 00000000961a7380
FS:  0000000000000000(0000) GS:ffff888124447000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe98214da08 CR3: 0000000061f60000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ipgre_header+0xdd/0x540 net/ipv4/ip_gre.c:900
 dev_hard_header include/linux/netdevice.h:3439 [inline]
 neigh_connected_output+0x34d/0x5d0 net/core/neighbour.c:1643
 neigh_output include/net/neighbour.h:556 [inline]
 ip6_finish_output2+0xb0f/0x1ce0 net/ipv6/ip6_output.c:136
 __ip6_finish_output+0x357/0xdf0 net/ipv6/ip6_output.c:208
 ip6_finish_output net/ipv6/ip6_output.c:219 [inline]
 NF_HOOK_COND include/linux/netfilter.h:307 [inline]
 ip6_output+0x2aa/0xa60 net/ipv6/ip6_output.c:246
 dst_output include/net/dst.h:470 [inline]
 NF_HOOK include/linux/netfilter.h:318 [inline]
 NF_HOOK.constprop.0+0x115/0x5a0 include/linux/netfilter.h:312
 mld_sendpack+0x8f7/0xec0 net/ipv6/mcast.c:1855
 mld_send_cr net/ipv6/mcast.c:2154 [inline]
 mld_ifc_work+0x75a/0xc10 net/ipv6/mcast.c:2693
 process_one_work+0x9d7/0x1920 kernel/workqueue.c:3275
 process_scheduled_works kernel/workqueue.c:3358 [inline]
 worker_thread+0x5da/0xe40 kernel/workqueue.c:3439
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x754/0xd80 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+0xa08/0xfe0 net/core/skbuff.c:2306
Code: 7e d4 ae f8 be 01 00 00 00 48 89 df e8 31 ec ff ff e9 ea f9 ff ff e8 67 d4 ae f8 90 0f 0b 90 45 31 ed eb 80 e8 59 d4 ae f8 90 <0f> 0b e8 51 d4 ae f8 90 0f 0b e8 49 d4 ae f8 81 cd 00 00 02 00 e9
RSP: 0018:ffffc900037d7620 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880292e3a00 RCX: ffffffff8959dcce
RDX: ffff88802688a4c0 RSI: ffffffff8959e607 RDI: ffff88802688a4c0
RBP: 0000000000000820 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000961a7380 R11: 0000000000000000 R12: ffff8880292e3a00
R13: 00000000961a7a40 R14: dffffc0000000000 R15: 00000000961a7380
FS:  0000000000000000(0000) GS:ffff888124447000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fc11ff8 CR3: 0000000080c17000 CR4: 00000000003526f0