syzbot

kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 4253 Comm: syzkaller254960 Not tainted 4.15.0-rc4+ #227
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__le32_to_cpup include/uapi/linux/byteorder/little_endian.h:58 [inline]
RIP: 0010:le32_to_cpuvp crypto/chacha20_generic.c:19 [inline]
RIP: 0010:crypto_chacha20_init crypto/chacha20_generic.c:58 [inline]
RIP: 0010:crypto_chacha20_crypt+0x537/0xbd0 crypto/chacha20_generic.c:91
RSP: 0018:ffff8801c49ff4a0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 00000000e6000000 RCX: ffffffff8226421b
RDX: 0000000000000000 RSI: ffff8801c41dbe40 RDI: ffff8801c49ff53c
RBP: ffff8801c49ff6c0 R08: ffffed003978202c R09: ffff8801cbc10140
R10: ffff8801c49ff6e0 R11: ffffed003978202b R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
FS:  00000000020b6880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f972ed02000 CR3: 00000001c4728001 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 chacha20_simd+0xe4/0x410 arch/x86/crypto/chacha20_glue.c:78
 crypto_skcipher_decrypt include/crypto/skcipher.h:463 [inline]
 _skcipher_recvmsg crypto/algif_skcipher.c:126 [inline]
 skcipher_recvmsg+0x733/0xf10 crypto/algif_skcipher.c:165
 sock_recvmsg_nosec net/socket.c:809 [inline]
 sock_recvmsg+0xc9/0x110 net/socket.c:816
 sock_read_iter+0x35b/0x560 net/socket.c:893
 call_read_iter include/linux/fs.h:1766 [inline]
 aio_read+0x2aa/0x3a0 fs/aio.c:1501
 io_submit_one fs/aio.c:1611 [inline]
 do_io_submit+0xf8d/0x14f0 fs/aio.c:1682
 SYSC_io_submit fs/aio.c:1707 [inline]
 SyS_io_submit+0x27/0x30 fs/aio.c:1704
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x440919
RSP: 002b:00007ffd91397ae8 EFLAGS: 00000213 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440919
RDX: 0000000020738000 RSI: 0000000000000001 RDI: 00007f972ed02000
RBP: 00000000000063e8 R08: 0000000000000000 R09: 0000000000000005
R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000000000
R13: 0000000000401da0 R14: 0000000000000000 R15: 0000000000000000
Code: 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d6 05 00 00 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 89 9d 7c fe ff ff 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 
RIP: __le32_to_cpup include/uapi/linux/byteorder/little_endian.h:58 [inline] RSP: ffff8801c49ff4a0
RIP: le32_to_cpuvp crypto/chacha20_generic.c:19 [inline] RSP: ffff8801c49ff4a0
RIP: crypto_chacha20_init crypto/chacha20_generic.c:58 [inline] RSP: ffff8801c49ff4a0
RIP: crypto_chacha20_crypt+0x537/0xbd0 crypto/chacha20_generic.c:91 RSP: ffff8801c49ff4a0
---[ end trace f6c022a06f21d721 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..