netlink: 6 bytes leftover after parsing attributes in process `syz-executor3'. 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: 8505 Comm: syz-executor6 Not tainted 4.15.0-rc2+ #143 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: 00000000542dbc24 task.stack: 000000009798763f 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:ffff8801a0707720 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 000000000000000f RCX: 0000000000000001 RDX: dffffc0000000000 RSI: ffffc90003bc6000 RDI: 0000000000000008 RBP: ffff8801a0707770 R08: ffffed00331481e2 R09: 0000000000000000 R10: 0000000000000001 R11: ffffed00331481e1 R12: ffff8801a07078e8 R13: ffff8801a07077d0 R14: ffff8801a0707818 R15: ffff8801a07077f8 FS: 00007f39670e9700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe55f32a638 CR3: 00000001d137c000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skcipher_null_crypt+0x1da/0x2d0 crypto/crypto_null.c:91 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:805 [inline] sock_recvmsg+0xc9/0x110 net/socket.c:812 ___sys_recvmsg+0x29b/0x630 net/socket.c:2207 __sys_recvmsg+0xe2/0x210 net/socket.c:2252 SYSC_recvmsg net/socket.c:2264 [inline] SyS_recvmsg+0x2d/0x50 net/socket.c:2259 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f39670e8c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39 RDX: 0000000000000000 RSI: 00000000200a9fc8 RDI: 0000000000000014 RBP: 000000000000039b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f2728 R13: 00000000ffffffff R14: 00007f39670e96d4 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: ffff8801a0707720 RIP: scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline] RSP: ffff8801a0707720 RIP: scatterwalk_done include/crypto/scatterwalk.h:119 [inline] RSP: ffff8801a0707720 RIP: blkcipher_walk_done+0x300/0xde0 crypto/blkcipher.c:124 RSP: ffff8801a0707720 ---[ end trace 66653dd8255a43af ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..