kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
kvm [27984]: vcpu0, guest rIP: 0x14c Hyper-V uhandled wrmsr: 0x4000003c data 0xa7
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 28009 Comm: syz-executor.1 Not tainted 4.14.227-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kvm [27984]: vcpu0, guest rIP: 0x14c Hyper-V uhandled wrmsr: 0x40000012 data 0x79
task: ffff8880b2880040 task.stack: ffff8880a2018000
RIP: 0010:vhost_umem_interval_tree_iter_first drivers/vhost/vhost.c:53 [inline]
RIP: 0010:vhost_del_umem_range drivers/vhost/vhost.c:971 [inline]
RIP: 0010:vhost_process_iotlb_msg drivers/vhost/vhost.c:1042 [inline]
RIP: 0010:vhost_chr_write_iter drivers/vhost/vhost.c:1071 [inline]
RIP: 0010:vhost_chr_write_iter+0x863/0x10f0 drivers/vhost/vhost.c:1055
RSP: 0018:ffff8880a201fc00 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff888046246580 RCX: 0000000000000000
RDX: 0000000000000002 RSI: ffffffff857c9895 RDI: ffff888046246640
RBP: ffffed1008c48cc1 R08: 0000000000000000 R09: 0000000000040a01
R10: ffff8880b2880918 R11: ffff8880b2880040 R12: 0000000000000002
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff11014403f87
FS:  00007f663c1fb700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004e4a62 CR3: 00000000219d2000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kvm [27984]: vcpu0, guest rIP: 0x14c Hyper-V uhandled wrmsr: 0x40000043 data 0x25
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kvm [27984]: vcpu0, guest rIP: 0x14c Hyper-V uhandled wrmsr: 0x40000009 data 0x87
 call_write_iter include/linux/fs.h:1778 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x44c/0x630 fs/read_write.c:482
kvm [27984]: vcpu0, guest rIP: 0x14c Hyper-V uhandled wrmsr: 0x40000087 data 0xbd
 vfs_write+0x17f/0x4d0 fs/read_write.c:544
 SYSC_write fs/read_write.c:590 [inline]
 SyS_write+0xf2/0x210 fs/read_write.c:582
kvm [27984]: vcpu0, guest rIP: 0x14c Hyper-V uhandled wrmsr: 0x4000007c data 0x89
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x466459
kvm [27984]: vcpu0, guest rIP: 0x14c Hyper-V uhandled wrmsr: 0x4000002b data 0xf9
RSP: 002b:00007f663c1fb188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000000000048 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007fffba424b0f R14: 00007f663c1fb300 R15: 0000000000022000
Code: 
netlink: 584 bytes leftover after parsing attributes in process `syz-executor.3'.
ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 cd 06 00 00 4c 8b ab c0 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e9 48 c1 e9 03 <80> 3c 01 00 0f 85 96 06 00 00 49 8b 6d 00 48 85 ed 0f 84 e4 03 
RIP: vhost_umem_interval_tree_iter_first drivers/vhost/vhost.c:53 [inline] RSP: ffff8880a201fc00
RIP: vhost_del_umem_range drivers/vhost/vhost.c:971 [inline] RSP: ffff8880a201fc00
RIP: vhost_process_iotlb_msg drivers/vhost/vhost.c:1042 [inline] RSP: ffff8880a201fc00
RIP: vhost_chr_write_iter drivers/vhost/vhost.c:1071 [inline] RSP: ffff8880a201fc00
RIP: vhost_chr_write_iter+0x863/0x10f0 drivers/vhost/vhost.c:1055 RSP: ffff8880a201fc00
netlink: 584 bytes leftover after parsing attributes in process `syz-executor.3'.
---[ end trace 020899edaa9fe22a ]---