SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=12778 comm=syz-executor2
BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
IP: __crypto_alg_lookup+0x43/0x190 crypto/api.c:63
PGD 1ddc96067 P4D 1ddc96067 PUD 21221e067 PMD 0 
Oops: 0000 [#1] SMP
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 12759 Comm: syz-executor4 Not tainted 4.15.0-rc3-next-20171214+ #67
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__crypto_alg_lookup+0x43/0x190 crypto/api.c:63
RSP: 0018:ffffc90000edba90 EFLAGS: 00010216
RAX: 0000000000010000 RBX: 0000000000000000 RCX: ffffffff816741f3
RDX: 0000000000000e9d RSI: ffffc90002f7b000 RDI: ffff8801e0bbf239
RBP: ffffc90000edbad8 R08: 0000000000000001 R09: 0000000000000001
R10: ffffc90000edba58 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000c85 R14: 000000000000260c R15: 0000000000002404
FS:  00007f3701f45700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000020 CR3: 00000001ddec1000 CR4: 00000000001406e0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 crypto_alg_lookup+0x31/0x50 crypto/api.c:201
 crypto_larval_lookup.part.8+0xa0/0x1c0 crypto/api.c:226
 crypto_larval_lookup crypto/api.c:212 [inline]
 crypto_alg_mod_lookup+0x77/0x120 crypto/api.c:271
 crypto_alloc_base+0x2d/0x110 crypto/api.c:417
 cryptd_alloc_ablkcipher+0x7e/0xd0 crypto/cryptd.c:1176
 ablk_init_common crypto/ablk_helper.c:126 [inline]
 ablk_init+0x4d/0xa0 crypto/ablk_helper.c:146
 __crypto_alloc_tfm+0xdd/0x1d0 crypto/api.c:369
 crypto_init_skcipher_ops_ablkcipher crypto/skcipher.c:751 [inline]
 crypto_skcipher_init_tfm+0xdd/0x200 crypto/skcipher.c:829
 crypto_create_tfm+0x53/0x120 crypto/api.c:462
 crypto_alloc_tfm+0x82/0x180 crypto/api.c:540
 crypto_alloc_skcipher+0x2c/0x40 crypto/skcipher.c:927
 skcipher_bind+0x51/0x90 crypto/algif_skcipher.c:323
 alg_bind+0x94/0x180 crypto/af_alg.c:179
 SYSC_bind+0xa8/0x130 net/socket.c:1454
 SyS_bind+0x24/0x30 net/socket.c:1440
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452a39
RSP: 002b:00007f3701f44c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007f3701f424f0 RCX: 0000000000452a39
RDX: 0000000000000058 RSI: 0000000020bc5000 RDI: 0000000000000015
RBP: 00007f3701f424c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b7733
R13: 00007f3701f44ba0 R14: 00000000004b7734 R15: 0000000000000000
Code: 89 7d d0 e8 70 61 c4 ff 48 8b 1d 89 df a6 01 48 81 fb 60 21 0e 83 0f 84 4c 01 00 00 c7 45 c4 fe ff ff ff 45 31 e4 e8 4d 61 c4 ff <44> 8b 6b 20 41 f6 c5 60 0f 85 03 01 00 00 e8 3a 61 c4 ff 44 89 
RIP: __crypto_alg_lookup+0x43/0x190 crypto/api.c:63 RSP: ffffc90000edba90
CR2: 0000000000000020
---[ end trace c6f35c0aefdfe203 ]---