BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 9fd7a067 P4D 9fd7a067 PUD 8de8b067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 20430 Comm: syz-executor.1 Not tainted 5.6.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffffc90006d67d10 EFLAGS: 00010246
RAX: 1ffff110126fe700 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffff888093c2a298 RSI: 0000000000000000 RDI: ffff8880937f3180
RBP: ffffc90006d67d68 R08: ffffffff87025f8e R09: fffffbfff140652a
R10: fffffbfff140652a R11: 0000000000000000 R12: ffff8880937f3610
R13: ffff8880937f3180 R14: dffffc0000000000 R15: 1ffff110126fe6c2
FS:  00007fe5a6790700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000098b11000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 cipso_v4_sock_setattr+0x34b/0x470 net/ipv4/cipso_ipv4.c:1888
 netlbl_sock_setattr+0x2a7/0x310 net/netlabel/netlabel_kapi.c:989
 smack_netlabel security/smack/smack_lsm.c:2425 [inline]
 smack_socket_post_create+0x184/0x290 security/smack/smack_lsm.c:2767
 security_socket_post_create+0x6c/0xd0 security/security.c:2013
 __sock_create+0x676/0x910 net/socket.c:1449
 sock_create net/socket.c:1484 [inline]
 __sys_socket+0xe7/0x2e0 net/socket.c:1526
 __do_sys_socket net/socket.c:1535 [inline]
 __se_sys_socket net/socket.c:1533 [inline]
 __x64_sys_socket+0x7a/0x90 net/socket.c:1533
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c449
Code: ad b6 fb 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe5a678fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fe5a67906d4 RCX: 000000000045c449
RDX: 0000000000000106 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000b78 R14: 00000000004cd69e R15: 000000000076bf2c
Modules linked in:
CR2: 0000000000000000
---[ end trace 43415658dcc6574b ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffffc90006d67d10 EFLAGS: 00010246
RAX: 1ffff110126fe700 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffff888093c2a298 RSI: 0000000000000000 RDI: ffff8880937f3180
RBP: ffffc90006d67d68 R08: ffffffff87025f8e R09: fffffbfff140652a
R10: fffffbfff140652a R11: 0000000000000000 R12: ffff8880937f3610
R13: ffff8880937f3180 R14: dffffc0000000000 R15: 1ffff110126fe6c2
FS:  00007fe5a6790700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000098b11000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400