random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 PGD 1ad279067 P4D 1ad279067 PUD 1ad278067 PMD 0 Oops: 0010 [#1] SMP KASAN CPU: 1 PID: 4572 Comm: syz-executor900 Not tainted 4.17.0+ #84 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010: (null) Code: Bad RIP value. RSP: 0018:ffff8801c7267590 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8801ad305800 RCX: 1ffffffff10ea9fd RDX: ffff8801c7267ab0 RSI: ffff8801a7ec8040 RDI: ffff8801b2823840 RBP: ffff8801c7267700 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff10038e4ceb7 R13: ffff8801c7267ab0 R14: ffff8801ad305812 R15: ffff8801ad305c58 FS: 0000000001609880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 00000001acdaa000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sock_poll+0x1d1/0x710 net/socket.c:1168 vfs_poll+0x77/0x2a0 fs/select.c:40 do_pollfd fs/select.c:848 [inline] do_poll fs/select.c:896 [inline] do_sys_poll+0x6fd/0x1100 fs/select.c:990 __do_sys_poll fs/select.c:1048 [inline] __se_sys_poll fs/select.c:1036 [inline] __x64_sys_poll+0x189/0x510 fs/select.c:1036 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x43fd29 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 6b 45 00 00 c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffe98ae49d8 EFLAGS: 00000213 ORIG_RAX: 0000000000000007 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fd29 RDX: 00000000000000ec RSI: 0000000000000004 RDI: 0000000020000080 RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 00000000004002c8 R11: 0000000000000213 R12: 0000000000401650 R13: 00000000004016e0 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) CR2: 0000000000000000 ---[ end trace 0b3f2eea693d89be ]--- RIP: 0010: (null) Code: Bad RIP value. RSP: 0018:ffff8801c7267590 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8801ad305800 RCX: 1ffffffff10ea9fd RDX: ffff8801c7267ab0 RSI: ffff8801a7ec8040 RDI: ffff8801b2823840 RBP: ffff8801c7267700 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff10038e4ceb7 R13: ffff8801c7267ab0 R14: ffff8801ad305812 R15: ffff8801ad305c58 FS: 0000000001609880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 00000001acdaa000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400