skbuff: skb_under_panic: text:ffffffff8a83963b len:-1812855336 put:-1812855452 head:ffff88807e61b000 data:ffff887fea6fab5c tail:0x134 end:0x6c0 dev:bond0
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:209!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 26 Comm: kworker/1:0 Not tainted 6.14.0-rc6-syzkaller-00103-g4003c9e78778 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: mld mld_ifc_work
RIP: 0010:skb_panic net/core/skbuff.c:209 [inline]
RIP: 0010:skb_under_panic+0x14b/0x150 net/core/skbuff.c:219
Code: 2e 8d 48 c7 c6 63 5b 4c 8e 48 8b 54 24 08 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 41 54 41 57 41 56 e8 6a da 62 f7 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:ffffc90000a0f490 EFLAGS: 00010286
RAX: 0000000000000099 RBX: dffffc0000000000 RCX: 3997c0b68b919900
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff888028814510 R08: ffffffff81a1358c R09: fffffbfff1d3a69c
R10: dffffc0000000000 R11: fffffbfff1d3a69c R12: 00000000000006c0
R13: ffff88807e61b000 R14: ffff887fea6fab5c R15: 0000000000000134
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdbb00d68e5 CR3: 0000000066a2e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 skb_push+0xe5/0x100 net/core/skbuff.c:2546
 ipgre_header+0x6b/0x290 net/ipv4/ip_gre.c:891
 dev_hard_header include/linux/netdevice.h:3365 [inline]
 neigh_connected_output+0x27f/0x450 net/core/neighbour.c:1538
 neigh_output include/net/neighbour.h:539 [inline]
 ip6_finish_output2+0x12bc/0x17c0 net/ipv6/ip6_output.c:141
 ip6_finish_output+0x41e/0x840 net/ipv6/ip6_output.c:226
 NF_HOOK+0x9e/0x430 include/linux/netfilter.h:314
 mld_sendpack+0x843/0xdb0 net/ipv6/mcast.c:1868
 mld_send_cr net/ipv6/mcast.c:2169 [inline]
 mld_ifc_work+0x7d9/0xd90 net/ipv6/mcast.c:2702
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd30 kernel/workqueue.c:3400
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:skb_panic net/core/skbuff.c:209 [inline]
RIP: 0010:skb_under_panic+0x14b/0x150 net/core/skbuff.c:219
Code: 2e 8d 48 c7 c6 63 5b 4c 8e 48 8b 54 24 08 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 41 54 41 57 41 56 e8 6a da 62 f7 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:ffffc90000a0f490 EFLAGS: 00010286
RAX: 0000000000000099 RBX: dffffc0000000000 RCX: 3997c0b68b919900
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff888028814510 R08: ffffffff81a1358c R09: fffffbfff1d3a69c
R10: dffffc0000000000 R11: fffffbfff1d3a69c R12: 00000000000006c0
R13: ffff88807e61b000 R14: ffff887fea6fab5c R15: 0000000000000134
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdbaff5e440 CR3: 000000000e938000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400