bond1: (slave gre1): Setting fail_over_mac to active for active-backup mode
bond1: (slave gre1): making interface the new active one
gre1: entered promiscuous mode
bond1: (slave gre1): Enslaving as an active interface with an up link
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:2306!
Oops: invalid opcode: 0000 [#2] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6108 Comm: syz-executor.0 Tainted: G      D             syzkaller #0 PREEMPT(full) 
Tainted: [D]=DIE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
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 b4 ba f8 e9 d3 f3 ff ff e8 87 8f 50 f8 90 <0f> 0b e8 7f 8f 50 f8 90 0f 0b 44 89 f9 80 e1 07 80 c1 03 38 c1 0f
RSP: 0018:ffffc90004a9f590 EFLAGS: 00010293

RAX: ffffffff8974fc29 RBX: ffff88806427c640 RCX: ffff888031ffdac0
RDX: 0000000000000000 RSI: 0000000093ca7030 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a32d7b0 R12: dffffc0000000000
R13: 0000000000000820 R14: 0000000093ca7030 R15: 0000000000000180
FS:  00007f3075c4e6c0(0000) GS:ffff888125564000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c476b64908 CR3: 000000006496c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ipgre_header+0xd5/0x350 net/ipv4/ip_gre.c:900
 dev_hard_header include/linux/netdevice.h:3439 [inline]
 packet_snd net/packet/af_packet.c:3028 [inline]
 packet_sendmsg+0x361f/0x50f0 net/packet/af_packet.c:3108
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xa68/0xad0 net/socket.c:2592
 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2646
 __sys_sendmsg net/socket.c:2678 [inline]
 __do_sys_sendmsg net/socket.c:2683 [inline]
 __se_sys_sendmsg net/socket.c:2681 [inline]
 __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2681
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3074a698a9
Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3075c4e0b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3074b8c030 RCX: 00007f3074a698a9
RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000004
RBP: 00007f3074adef7c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3074b8c030 R15: 00007ffc7a974638
 </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 b4 ba f8 e9 d3 f3 ff ff e8 87 8f 50 f8 90 <0f> 0b e8 7f 8f 50 f8 90 0f 0b 44 89 f9 80 e1 07 80 c1 03 38 c1 0f
RSP: 0018:ffffc90000117470 EFLAGS: 00010293

RAX: ffffffff8974fc29 RBX: ffff888076824280 RCX: ffff88801dab8000
RDX: 0000000000000000 RSI: 0000000093ca7030 RDI: 0000000000000000