random: sshd: uninitialized urandom read (32 bytes read) audit: type=1400 audit(1572342749.159:36): avc: denied { map } for pid=6818 comm="syz-executor705" path="/root/syz-executor705276554" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 BUG: unable to handle kernel NULL pointer dereference at (null) IP: (null) PGD 91392067 P4D 91392067 PUD 9b9d6067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 6818 Comm: syz-executor705 Not tainted 4.14.151 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880a5ad6280 task.stack: ffff8880a60c0000 RIP: 0010: (null) RSP: 0018:ffff8880a60c7d48 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffffffff88151060 RCX: 1ffff11014b5ad64 RDX: 1ffffffff102a223 RSI: 0000000000000000 RDI: ffff88809b53a000 RBP: ffff8880a60c7d68 R08: 0000000000000001 R09: ffff8880a5ad6b20 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809b53a000 R13: ffff88809b53a00e R14: 000000000000001c R15: 0000000000000002 FS: 0000000002376880(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000009430e000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inet_autobind+0xae/0x180 net/ipv4/af_inet.c:181 inet_dgram_connect+0x136/0x1e0 net/ipv4/af_inet.c:538 SYSC_connect+0x1f6/0x2d0 net/socket.c:1655 SyS_connect+0x24/0x30 net/socket.c:1636 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x440179 RSP: 002b:00007ffdc3563d68 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440179 RDX: 000000000000001c RSI: 0000000020d83fe4 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a00 R13: 0000000000401a90 R14: 0000000000000000 R15: 0000000000000000 Code: Bad RIP value. RIP: (null) RSP: ffff8880a60c7d48 CR2: 0000000000000000 ---[ end trace 805502f50c3d4606 ]---