random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
random: cc1: uninitialized urandom read (8 bytes read)
IPVS: ftp: loaded support on port[0] = 21
------------[ cut here ]------------
kernel BUG at fs/userfaultfd.c:883!
invalid opcode: 0000 [#1] SMP KASAN
CPU: 0 PID: 4580 Comm: syz-executor0 Not tainted 4.18.0-rc4+ #51
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:userfaultfd_release+0x5fb/0x770 fs/userfaultfd.c:882
Code: 00 31 c0 48 8b 4d d0 65 48 33 0c 25 28 00 00 00 0f 85 a1 00 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 75 be a0 ff <0f> 0b 4c 89 f7 e8 0b 9e de ff e9 11 fc ff ff 4c 89 e7 e8 5e 9d de 
RSP: 0018:ffff8801d8b5fa30 EFLAGS: 00010293
RAX: ffff8801d868a3c0 RBX: dffffc0000000000 RCX: ffffffff81db4a59
RDX: 0000000000000000 RSI: ffffffff81db4ccb RDI: 0000000000000000
RBP: ffff8801d8b5fb80 R08: ffff8801d868a3c0 R09: 0000000000000000
R10: ffff8801d868abf8 R11: 16fb0df9f74494d6 R12: ffff8801d8458840
R13: 0000000000000000 R14: ffff8801d8458738 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8801dae00000(0063) knlGS:00000000095c4900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000008140000 CR3: 00000001d4ba8000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __fput+0x355/0x8b0 fs/file_table.c:209
 ____fput+0x15/0x20 fs/file_table.c:243
 task_work_run+0x1ec/0x2a0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:192 [inline]
 exit_to_usermode_loop+0x313/0x370 arch/x86/entry/common.c:166
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_32_irqs_on arch/x86/entry/common.c:341 [inline]
 do_fast_syscall_32+0xcd5/0xfb2 arch/x86/entry/common.c:397
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f49cb9
Code: 55 08 8b 88 64 cd ff ff 8b 98 68 cd ff ff 89 c8 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 1c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 
RSP: 002b:00000000ff9f0a0c EFLAGS: 00000296 ORIG_RAX: 0000000000000006
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000
RDX: 0000000000000006 RSI: 00000000ff9f0a5c RDI: 00000000ff9f16ec
RBP: 00000000ff9f10c8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace 0f09d4a4b896e98c ]---
RIP: 0010:userfaultfd_release+0x5fb/0x770 fs/userfaultfd.c:882
Code: 00 31 c0 48 8b 4d d0 65 48 33 0c 25 28 00 00 00 0f 85 a1 00 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 75 be a0 ff <0f> 0b 4c 89 f7 e8 0b 9e de ff e9 11 fc ff ff 4c 89 e7 e8 5e 9d de 
RSP: 0018:ffff8801d8b5fa30 EFLAGS: 00010293
RAX: ffff8801d868a3c0 RBX: dffffc0000000000 RCX: ffffffff81db4a59
RDX: 0000000000000000 RSI: ffffffff81db4ccb RDI: 0000000000000000
RBP: ffff8801d8b5fb80 R08: ffff8801d868a3c0 R09: 0000000000000000
R10: ffff8801d868abf8 R11: 16fb0df9f74494d6 R12: ffff8801d8458840
R13: 0000000000000000 R14: ffff8801d8458738 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8801dae00000(0063) knlGS:00000000095c4900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000008140000 CR3: 00000001d4ba8000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400