sshd (8083) used greatest stack depth: 15720 bytes left
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:1459!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8099 Comm: syz-executor805 Not tainted 4.20.0-rc7-next-20181224 #190
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:pskb_expand_head+0xc24/0x10d0 net/core/skbuff.c:1459
Code: 8b 85 20 fe ff ff 48 85 c0 0f 84 44 fe ff ff e8 a2 87 64 fb 4d 8d 74 24 ff e9 35 fe ff ff e8 93 87 64 fb 0f 0b e8 8c 87 64 fb <0f> 0b e8 85 87 64 fb 31 f6 31 ff e8 4c 88 64 fb e9 6a fd ff ff 4c
RSP: 0018:ffff888090027190 EFLAGS: 00010293
RAX: ffff88808f9b2080 RBX: ffff88809776c7c0 RCX: ffffffff861d605a
RDX: 0000000000000000 RSI: ffffffff861d6ad4 RDI: 0000000000000005
RBP: ffff888090027390 R08: ffff88808f9b2080 R09: ffffed1012eed912
R10: ffffed1012eed912 R11: ffff88809776c897 R12: ffff88809776c87c
R13: 0000000000000002 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f3970b46700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000300 CR3: 00000000a0e0d000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __pskb_pull_tail+0x156/0x18a0 net/core/skbuff.c:1896
 pskb_may_pull include/linux/skbuff.h:2188 [inline]
 ip6_datagram_recv_specific_ctl+0x1953/0x1bf0 net/ipv6/datagram.c:707
 ip6_datagram_recv_ctl+0x33/0x40 net/ipv6/datagram.c:736
 rawv6_recvmsg+0xc4b/0xea0 net/ipv6/raw.c:520
 sock_common_recvmsg+0x13a/0x2a0 net/core/sock.c:2970
 sock_recvmsg_nosec net/socket.c:794 [inline]
 sock_recvmsg+0xd0/0x110 net/socket.c:801
 ___sys_recvmsg+0x2b6/0x680 net/socket.c:2278
 __sys_recvmsg+0x11a/0x280 net/socket.c:2327
 __do_sys_recvmsg net/socket.c:2337 [inline]
 __se_sys_recvmsg net/socket.c:2334 [inline]
 __x64_sys_recvmsg+0x78/0xb0 net/socket.c:2334
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4457e9
Code: e8 6c b6 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 2b 12 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3970b45da8 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00000000006dac38 RCX: 00000000004457e9
RDX: 0000000000000002 RSI: 0000000020000140 RDI: 0000000000000004
RBP: 00000000006dac30 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dac3c
R13: 0100000000000000 R14: 00007f3970b469c0 R15: 00000000006dad2c
Modules linked in:
---[ end trace 06f0b8b11d5c661f ]---
RIP: 0010:pskb_expand_head+0xc24/0x10d0 net/core/skbuff.c:1459
Code: 8b 85 20 fe ff ff 48 85 c0 0f 84 44 fe ff ff e8 a2 87 64 fb 4d 8d 74 24 ff e9 35 fe ff ff e8 93 87 64 fb 0f 0b e8 8c 87 64 fb <0f> 0b e8 85 87 64 fb 31 f6 31 ff e8 4c 88 64 fb e9 6a fd ff ff 4c
RSP: 0018:ffff888090027190 EFLAGS: 00010293
RAX: ffff88808f9b2080 RBX: ffff88809776c7c0 RCX: ffffffff861d605a
RDX: 0000000000000000 RSI: ffffffff861d6ad4 RDI: 0000000000000005
RBP: ffff888090027390 R08: ffff88808f9b2080 R09: ffffed1012eed912
R10: ffffed1012eed912 R11: ffff88809776c897 R12: ffff88809776c87c
R13: 0000000000000002 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f3970b46700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000071b000 CR3: 00000000a0e0d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400