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: 20499 Comm: syz-executor1 Not tainted 4.15.0-rc4-mm1+ #49
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:123
RSP: 0018:ffff8801c248f390 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 000000009263123e RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffc9000186e000 RDI: 0000000000000008
RBP: ffff8801c248f3e0 R08: ffff8801c248f4a0 R09: 0000000000000000
R10: ffff8801bef3c530 R11: 0000000000000000 R12: ffff8801c248f5b8
R13: ffff8801c248f480 R14: ffff8801c248f4c8 R15: ffff8801c248f4a8
FS:  00007f18cc95a700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000718020 CR3: 00000001c333f004 CR4: 00000000001626f0
DR0: 0000000020001000 DR1: 0000000020001000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 crypto_ctr_crypt+0x3dc/0x870 crypto/ctr.c:146
 skcipher_crypt_blkcipher crypto/skcipher.c:620 [inline]
 skcipher_decrypt_blkcipher+0x213/0x310 crypto/skcipher.c:638
 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
 chachapoly_decrypt+0x73/0x90 crypto/chacha20poly1305.c:488
 crypto_aead_decrypt include/crypto/aead.h:362 [inline]
 _aead_recvmsg crypto/algif_aead.c:314 [inline]
 aead_recvmsg+0x154a/0x1cf0 crypto/algif_aead.c:335
 sock_recvmsg_nosec net/socket.c:801 [inline]
 sock_recvmsg+0xc9/0x110 net/socket.c:808
 sock_read_iter+0x35b/0x560 net/socket.c:885
 call_read_iter include/linux/fs.h:1770 [inline]
 do_iter_readv_writev+0x5fb/0x7f0 fs/read_write.c:651
 do_iter_read+0x21a/0x5a0 fs/read_write.c:895
 vfs_readv+0x121/0x1c0 fs/read_write.c:959
 do_readv+0xfc/0x2a0 fs/read_write.c:992
 SYSC_readv fs/read_write.c:1079 [inline]
 SyS_readv+0x27/0x30 fs/read_write.c:1076
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452ac9
RSP: 002b:00007f18cc959c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000013
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452ac9
RDX: 0000000000000005 RSI: 0000000020b3a000 RDI: 0000000000000014
RBP: 000000000000039b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f2728
R13: 00000000ffffffff R14: 00007f18cc95a6d4 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: ffff8801c248f390
RIP: scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline] RSP: ffff8801c248f390
RIP: scatterwalk_done include/crypto/scatterwalk.h:119 [inline] RSP: ffff8801c248f390
RIP: blkcipher_walk_done+0x300/0xde0 crypto/blkcipher.c:123 RSP: ffff8801c248f390
---[ end trace 29ff4e41df12ed83 ]---
device gre0 entered promiscuous mode
netlink: 4 bytes leftover after parsing attributes in process `syz-executor7'.
tc_dump_action: action bad kind
netlink: 4 bytes leftover after parsing attributes in process `syz-executor7'.
tc_dump_action: action bad kind
device gre0 entered promiscuous mode
device gre0 entered promiscuous mode