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kernel BUG at net/core/skbuff.c:1208!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 5374 Comm: syz-executor926 Not tainted 4.9.118-g47b77b8 #20
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d7001800 task.stack: ffff8801d7080000
RIP: 0010:[<ffffffff8303e95c>]  [<ffffffff8303e95c>] pskb_expand_head+0x86c/0x930 net/core/skbuff.c:1208
RSP: 0018:ffff8801d70877a8  EFLAGS: 00010293
RAX: ffff8801d7001800 RBX: ffff8801d908d780 RCX: 0000000002080020
RDX: 0000000000000000 RSI: ffffffff8303e95c RDI: ffff8801d908d85c
RBP: ffff8801d7087820 R08: 0000000000000001 R09: ffffed003ae18000
R10: ffffed003ae18000 R11: ffff8801d70c0003 R12: 00000000000000c0
R13: ffff8801d908d844 R14: ffff8801b7888fc0 R15: 0000000002080020
FS:  00007f69d6d9a700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f69d6d78e78 CR3: 00000001d7b8b000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d70020c8 1ffff1003ae10ef8 ffffffff8556c0e8 0000000041b58ab3
 ffffffff843c4868 ffffffff81236190 ffff8801d70877e8 0000000000000286
 ffff8801d7087808 ffffffff00000000 0000000000000000 ffff8801d908d780
Call Trace:
 [<ffffffff8303fac8>] __pskb_pull_tail+0xc8/0x1250 net/core/skbuff.c:1615
 [<ffffffff836191ef>] pskb_may_pull include/linux/skbuff.h:1966 [inline]
 [<ffffffff836191ef>] ip6_datagram_recv_specific_ctl+0x135f/0x15b0 net/ipv6/datagram.c:702
 [<ffffffff8361a5b3>] ip6_datagram_recv_ctl+0x33/0x40 net/ipv6/datagram.c:726
 [<ffffffff835d26c6>] rawv6_recvmsg+0x926/0xac0 net/ipv6/raw.c:516
 [<ffffffff8301f652>] sock_common_recvmsg+0x112/0x1e0 net/core/sock.c:2690
 [<ffffffff830184c6>] sock_recvmsg_nosec net/socket.c:738 [inline]
 [<ffffffff830184c6>] sock_recvmsg+0xc6/0x110 net/socket.c:745
 [<ffffffff83018b8c>] SYSC_recvfrom+0x1fc/0x350 net/socket.c:1723
 [<ffffffff8301c360>] SyS_recvfrom+0x40/0x50 net/socket.c:1695
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839fca93>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: e8 6a d5 4f fe e9 9b fc ff ff 48 8b 7d c0 e8 5c d5 4f fe e9 91 fd ff ff 48 8b 7d c0 e8 4e d5 4f fe e9 19 fc ff ff e8 54 01 32 fe <0f> 0b 48 8b 7d c0 89 55 a8 e8 36 d5 4f fe 8b 55 a8 e9 1a f9 ff 
RIP  [<ffffffff8303e95c>] pskb_expand_head+0x86c/0x930 net/core/skbuff.c:1208
 RSP <ffff8801d70877a8>
---[ end trace 1e662d40f7140fa2 ]---