BUG: unable to handle kernel paging request at ffffffff00000001
IP: crypto_chacha20_init crypto/chacha20_generic.c:58 [inline]
IP: crypto_chacha20_crypt+0x557/0xbd0 crypto/chacha20_generic.c:91
PGD 5e28067 P4D 5e28067 PUD 0 
Oops: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 21797 Comm: syz-executor1 Not tainted 4.15.0-rc2+ #216
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:crypto_chacha20_init crypto/chacha20_generic.c:58 [inline]
RIP: 0010:crypto_chacha20_crypt+0x557/0xbd0 crypto/chacha20_generic.c:91
RSP: 0018:ffff8801c0637680 EFLAGS: 00010246
RAX: ffff8801c06376f0 RBX: 00000000e6000000 RCX: ffffffff8226ba5b
RDX: 0000000000000000 RSI: ffffc900025b0000 RDI: ffff8801c063771c
RBP: ffff8801c06378a0 R08: ffffed003b0e3fec R09: ffff8801d871ff40
R10: ffff8801c06378b8 R11: ffffed003b0e3feb R12: 0000000000000000
R13: ffffffff00000001 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f4fb5ad2700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff00000001 CR3: 00000001d6472000 CR4: 00000000001426f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 crypto_skcipher_encrypt include/crypto/skcipher.h:445 [inline]
 _skcipher_recvmsg crypto/algif_skcipher.c:126 [inline]
 skcipher_recvmsg+0xb1e/0xf20 crypto/algif_skcipher.c:165
 sock_recvmsg_nosec net/socket.c:809 [inline]
 sock_recvmsg+0xc9/0x110 net/socket.c:816
 sock_read_iter+0x361/0x560 net/socket.c:893
 call_read_iter include/linux/fs.h:1766 [inline]
 aio_read+0x2b0/0x3a0 fs/aio.c:1501
 io_submit_one fs/aio.c:1611 [inline]
 do_io_submit+0xf99/0x14f0 fs/aio.c:1682
 ? aio_read+0x3a0/