skbuff: skb_under_panic: text:ffff80000b8acdc4 len:44 put:40 head:ffff0000c7b18800 data:ffff0000c7b187ea tail:0x16 end:0xc0 dev:bond1
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kernel BUG at net/core/skbuff.c:120!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 2658 Comm: dhcpcd Not tainted 6.1.0-rc5-syzkaller-32269-g9500fc6e9e60 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : skb_panic+0x4c/0x50 net/core/skbuff.c:116
lr : skb_panic+0x4c/0x50 net/core/skbuff.c:116
sp : ffff800016a3b810
x29: ffff800016a3b820 x28: ffff800016a3bc60 x27: ffff80000cbdbaec
x26: ffff80000d8f23a8 x25: 000000000000003f x24: ffff0000c7a9ea00
x23: 0000000000006000 x22: ffff0000c7b187ea x21: ffff80000b8acdc4
x20: ffff0000c7a9ea00 x19: 0000000000000028 x18: 00000000000000c0
x17: ffff80000ddda198 x16: ffff80000dc18158 x15: ffff0000c3879a40
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c3879a40
x11: ff808000081c6510 x10: 0000000000000000 x9 : eced11face243b00
x8 : eced11face243b00 x7 : ffff80000c0b2b74 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000100000201 x0 : 0000000000000085
Call trace:
 skb_panic+0x4c/0x50 net/core/skbuff.c:116
 skb_under_panic net/core/skbuff.c:130 [inline]
 skb_pull+0x0/0xbc net/core/skbuff.c:2171
 ip6gre_header+0x58/0x24c net/ipv6/ip6_gre.c:1403
 dev_hard_header include/linux/netdevice.h:3060 [inline]
 lapbeth_data_transmit+0xb4/0xe4 drivers/net/wan/lapbether.c:257
 lapb_data_transmit+0x3c/0x60 net/lapb/lapb_iface.c:447
 lapb_transmit_buffer+0x154/0x1a0 net/lapb/lapb_out.c:149
 lapb_send_control+0x170/0x18c net/lapb/lapb_subr.c:251
 lapb_establish_data_link+0x50/0x70
 lapb_device_event+0x2ac/0x380
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455
 __dev_notify_flags+0x170/0x2e8
 dev_change_flags+0x78/0x9c net/core/dev.c:8619
 devinet_ioctl+0x620/0xa10 net/ipv4/devinet.c:1146
 inet_ioctl+0x1e8/0x3a0 net/ipv4/af_inet.c:979
 sock_do_ioctl+0x68/0x194 net/socket.c:1169
 sock_ioctl+0x384/0x5c0 net/socket.c:1286
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
Code: 9122a400 aa0803e1 a90027ea 9438c5ab (d4210000) 
---[ end trace 0000000000000000 ]---