random: sshd: uninitialized urandom read (32 bytes read)
audit: type=1400 audit(1555093810.240:36): avc:  denied  { map } for  pid=7168 comm="syz-executor564" path="/root/syz-executor564431398" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 7168 Comm: syz-executor564 Not tainted 4.14.111 #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888091624740 task.stack: ffff888078080000
RIP: 0010:vhost_del_umem_range drivers/vhost/vhost.c:949 [inline]
RIP: 0010:vhost_process_iotlb_msg drivers/vhost/vhost.c:1020 [inline]
RIP: 0010:vhost_chr_write_iter drivers/vhost/vhost.c:1049 [inline]
RIP: 0010:vhost_chr_write_iter+0x4a9/0x1260 drivers/vhost/vhost.c:1033
RSP: 0018:ffff888078087b90 EFLAGS: 00010246
RAX: 0000000000000002 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff888074a60240
RBP: ffff888078087cb0 R08: dffffc0000000000 R09: 0000000000000000
R10: ffff888078087b80 R11: ffff888091624740 R12: ffff888074a64940
R13: 0000000000000000 R14: ffff888074a60180 R15: 0000000000000000
FS:  0000000001477880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000080 CR3: 00000000a6f50000 CR4: 00000000001406e0
Call Trace:
 vhost_net_chr_write_iter+0x59/0x70 drivers/vhost/net.c:1360
 call_write_iter include/linux/fs.h:1774 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x4ae/0x6c0 fs/read_write.c:482
 vfs_write+0x198/0x500 fs/read_write.c:544
 SYSC_write fs/read_write.c:589 [inline]
 SyS_write+0xb8/0x180 fs/read_write.c:581
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x440209
RSP: 002b:00007ffc0de061c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440209
RDX: 0000000000000068 RSI: 0000000020000280 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a90
R13: 0000000000401b20 R14: 0000000000000000 R15: 0000000000000000
Code: ff ff 48 89 f9 48 c1 e9 03 80 3c 11 00 0f 85 9c 0c 00 00 49 8b 8e c0 00 00 00 48 ba 00 00 00 00 00 fc ff df 49 89 cf 48 c1 e9 03 <80> 3c 11 00 0f 85 61 0c 00 00 4d 8b 27 4d 85 e4 0f 84 27 09 00 
RIP: vhost_del_umem_range drivers/vhost/vhost.c:949 [inline] RSP: ffff888078087b90
RIP: vhost_process_iotlb_msg drivers/vhost/vhost.c:1020 [inline] RSP: ffff888078087b90
RIP: vhost_chr_write_iter drivers/vhost/vhost.c:1049 [inline] RSP: ffff888078087b90
RIP: vhost_chr_write_iter+0x4a9/0x1260 drivers/vhost/vhost.c:1033 RSP: ffff888078087b90
---[ end trace d220b034738c198e ]---