device gre0 entered promiscuous mode
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: 17802 Comm: syz-executor5 Not tainted 4.15.0-rc3+ #217
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:scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline]
RIP: 0010:scatterwalk_done include/crypto/scatterwalk.h:119 [inline]
RIP: 0010:blkcipher_walk_done+0x300/0xde0 crypto/blkcipher.c:124
RSP: 0018:ffff88019055f4a0 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 00000000b9083f15 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffc900028ae000 RDI: 0000000000000008
RBP: ffff88019055f4f0 R08: ffff88019055f5b0 R09: 0000000000000000
R10: ffff8801c58032b0 R11: 0000000000000000 R12: ffff88019055f6a8
R13: ffff88019055f590 R14: ffff88019055f5d8 R15: ffff88019055f5b8
FS:  00007f6c6e3bd700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b9bc22000 CR3: 00000001d829a000 CR4: 00000000001406f0
DR0: 0000000020001000 DR1: 0000000020001008 DR2: 0000000020001010
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
netlink: 14 bytes leftover after parsing attributes in process `syz-executor1'.
Call Trace:
 crypto_ctr_crypt+0x3ca/0x840 crypto/ctr.c:146
 skcipher_crypt_blkcipher crypto/skcipher.c:622 [inline]
 skcipher_decrypt_blkcipher+0x213/0x310 crypto/skcipher.c:640
 crypto_skcipher_decrypt include/crypto/skcipher.h:463 [inline]
 chacha_decrypt crypto/chacha20poly1305.c:152 [inline]
 poly_tail_continue+0x42a/0x6b0 crypto/chacha20poly1305.c:167
 poly_tail+0x40f/0x520 crypto/chacha20poly1305.c:201
 poly_cipherpad+0x33e/0x470 crypto/chacha20poly1305.c:231
 poly_cipher+0x303/0x440 crypto/chacha20poly1305.c:262
 poly_adpad+0x347/0x480 crypto/chacha20poly1305.c:292
 poly_ad+0x25c/0x300 crypto/chacha20poly1305.c:316
 poly_setkey+0x2fc/0x3e0 crypto/chacha20poly1305.c:343
 poly_init+0x16c/0x1d0 crypto/chacha20poly1305.c:366
 poly_genkey+0x422/0x590 crypto/chacha20poly1305.c:406
 chacha_encrypt crypto/chacha20poly1305.c:446 [inline]
 chachapoly_encrypt+0x418/0x620 crypto/chacha20poly1305.c:467
 crypto_aead_encrypt include/crypto/aead.h:330 [inline]
 _aead_recvmsg crypto/algif_aead.c:308 [inline]
 aead_recvmsg+0x1295/0x1bc0 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: 0033:0x452a39
RSP: 002b:00007f6c6e3bcc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39
RDX: 0000000000000002 RSI: 000000002022efc8 RDI: 0000000000000016
RBP: 0000000000000048 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006ee760
R13: 00000000ffffffff R14: 00007f6c6e3bd6d4 R15: 0000000000000000
Code: 00 fc ff df 48 c1 e9 03 80 3c 11 00 0f 85 7a 09 00 00 48 8d 78 08 48 ba 00 00 00 00 00 fc ff df 49 89 45 20 48 89 f9 48 c1 e9 03 <0f> b6 14 11 84 d2 74 09 80 fa 03 0f 8e 3e 09 00 00 4c 89 f9 8b 
RIP: scatterwalk_start include/crypto/scatterwalk.h:86 [inline] RSP: ffff88019055f4a0
RIP: scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline] RSP: ffff88019055f4a0
RIP: scatterwalk_done include/crypto/scatterwalk.h:119 [inline] RSP: ffff88019055f4a0
RIP: blkcipher_walk_done+0x300/0xde0 crypto/blkcipher.c:124 RSP: ffff88019055f4a0
---[ end trace 2ec37e128062f6b5 ]---