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:
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Modules linked in:
CPU: 0 PID: 7704 Comm: syzkaller231876 Not tainted 4.15.0-rc2-mm1+ #39
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:scatterwalk_start include/crypto/scatterwalk.h:86 [inline]
RIP: 0010:blkcipher_walk_first+0x17a/0x570 crypto/blkcipher.c:341
RSP: 0018:ffff8801c8ef7700 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8801c8ef78e8 RCX: ffffffff82267f11
RDX: 0000000000000001 RSI: 1ffff100391def09 RDI: 0000000000000008
RBP: ffff8801c8ef7748 R08: 0000000000000000 R09: ffff8801d320a950
R10: ffff8801c8ef78b8 R11: ffffed003a641531 R12: 0000000000000000
R13: ffff8801c8ef7848 R14: 0000000000000010 R15: ffff8801c8ef77d0
FS:  00007f72c96ff700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200fd000 CR3: 00000001d9869000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 blkcipher_walk_virt+0x219/0x2a0 crypto/blkcipher.c:307
 skcipher_null_crypt+0x10e/0x2d0 crypto/crypto_null.c:85
 skcipher_crypt_blkcipher crypto/skcipher.c:622 [inline]
 skcipher_encrypt_blkcipher+0x213/0x310 crypto/skcipher.c:631
 crypto_skcipher_encrypt include/crypto/skcipher.h:445 [inline]
 crypto_aead_copy_sgl crypto/algif_aead.c:90 [inline]
 _aead_recvmsg crypto/algif_aead.c:243 [inline]
 aead_recvmsg+0x7ed/0x1bc0 crypto/algif_aead.c:329
 sock_recvmsg_nosec net/socket.c:809 [inline]
 sock_recvmsg+0xc9/0x110 net/socket.c:816
 ___sys_recvmsg+0x29b/0x630 net/socket.c:2185
 __sys_recvmsg+0xe2/0x210 net/socket.c:2230
 SYSC_recvmsg net/socket.c:2242 [inline]
 SyS_recvmsg+0x2d/0x50 net/socket.c:2237
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x448229
RSP: 002b:00007f72c96fed08 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000448229
RDX: 0000000000002002 RSI: 0000000020fd9fc8 RDI: 000000000000008e
RBP: 0000000000000000 R08: 00007f72c96ff700 R09: 00007f72c96ff700
R10: 00007f72c96ff700 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc9fe339ff R14: 00007f72c96ff9c0 R15: 0000000000000000
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 a7 03 00 00 4d 8b 67 20 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 18 03 00 00 49 8d 7f 28 48 
RIP: scatterwalk_start include/crypto/scatterwalk.h:86 [inline] RSP: ffff8801c8ef7700
RIP: blkcipher_walk_first+0x17a/0x570 crypto/blkcipher.c:341 RSP: ffff8801c8ef7700
---[ end trace 936cd9db95b6f033 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
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Kernel Offset: disabled
Rebooting in 86400 seconds..