Extracting prog: 1m59.35660232s
Minimizing prog: 23m55.159637697s
Simplifying prog options: 0s
Extracting C: 58.901306416s
Simplifying C: 5m36.588933153s


extracting reproducer from 30 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_REGS-ioctl$KVM_SET_VCPU_EVENTS-ioctl$KVM_RUN
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000040)={[0x0, 0x101, 0x80, 0x25, 0x20000004, 0x7f, 0x44233, 0x7, 0x8000000000002, 0x9c1, 0x8002, 0x1005, 0x400, 0x4db6, 0x0, 0xfffffdfffffffffd], 0x6001, 0x152783})
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
single: successfully extracted reproducer
found reproducer with 9 syscalls
minimizing guilty program
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_REGS-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000040)={[0x0, 0x101, 0x80, 0x25, 0x20000004, 0x7f, 0x44233, 0x7, 0x8000000000002, 0x9c1, 0x8002, 0x1005, 0x400, 0x4db6, 0x0, 0xfffffdfffffffffd], 0x6001, 0x152783})
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_REGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000040)={[0x0, 0x101, 0x80, 0x25, 0x20000004, 0x7f, 0x44233, 0x7, 0x8000000000002, 0x9c1, 0x8002, 0x1005, 0x400, 0x4db6, 0x0, 0xfffffdfffffffffd], 0x6001, 0x152783})

program did not crash
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program did not crash
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program did not crash
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program did not crash
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(0xffffffffffffffff, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(0xffffffffffffffff, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program did not crash
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r0 = ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r0, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r0, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r0, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program did not crash
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0)
r1 = ioctl$KVM_CREATE_VCPU(r0, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r0, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r1, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r1, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r1, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program did not crash
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program did not crash
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, 0x0, 0x0, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program did not crash
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, 0x0, 0x0, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program did not crash
testing program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.184999005s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
simplifying C reproducer
testing compiled C program (duration=45.184999005s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
testing compiled C program (duration=45.184999005s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
testing compiled C program (duration=45.184999005s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
testing compiled C program (duration=45.184999005s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
testing compiled C program (duration=45.184999005s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
testing compiled C program (duration=45.184999005s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
testing compiled C program (duration=45.184999005s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
testing program (duration=45.184999005s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
validation run: crashed=true
testing program (duration=45.184999005s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
validation run: crashed=true
testing program (duration=45.184999005s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN-ioctl$KVM_SET_VCPU_EVENTS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, 0x0}], 0x1, 0x7, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, 0x0}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4040aea0, &(0x7f00000002c0)=@x86={0x3, 0x0, 0xff, 0x0, 0xffffffff, 0xe, 0x8, 0xf2, 0xd5, 0x5, 0x4, 0x9, 0x0, 0x6adc01cd, 0xd, 0x9, 0x7, 0xa, 0x1c, '\x00', 0x9, 0x7})

program crashed: WARNING: suspicious RCU usage in kvm_vcpu_memslots
validation run: crashed=true
reproducing took 35m42.168867457s
repro crashed as (corrupted=false):
L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details.
=============================
WARNING: suspicious RCU usage
syzkaller #0 Not tainted
-----------------------------
include/linux/kvm_host.h:889 suspicious rcu_dereference_check() usage!

other info that might help us debug this:


rcu_scheduler_active = 2, debug_locks = 1
1 lock held by syz.0.17/4315:
 #0: ffff888078bac0c8 (&vcpu->mutex){+.+.}-{3:3}, at: kvm_vcpu_ioctl+0x1c8/0xb80 virt/kvm/kvm_main.c:3871

stack backtrace:
CPU: 0 PID: 4315 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
 __kvm_memslots include/linux/kvm_host.h:887 [inline]
 kvm_vcpu_memslots+0x1b6/0x200 include/linux/kvm_host.h:901
 kvm_vcpu_gfn_to_memslot+0x2b/0x3c0 virt/kvm/kvm_main.c:2158
 kvm_vcpu_unmap+0x5b/0x80 virt/kvm/kvm_main.c:2773
 nested_vmx_vmexit+0x13f5/0x28d0 arch/x86/kvm/vmx/nested.c:4676
 vmx_leave_nested+0x7e/0xc0 arch/x86/kvm/vmx/nested.c:6342
 kvm_leave_nested arch/x86/kvm/x86.c:618 [inline]
 kvm_vcpu_ioctl_x86_set_vcpu_events+0x95b/0x1190 arch/x86/kvm/x86.c:4812
 kvm_arch_vcpu_ioctl+0x1092/0x19d0 arch/x86/kvm/x86.c:5297
 kvm_vcpu_ioctl+0x6b1/0xb80 virt/kvm/kvm_main.c:4050
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f7f401eb749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffea1c02408 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7f40441fa0 RCX: 00007f7f401eb749
RDX: 00002000000002c0 RSI: 000000004040aea0 RDI: 0000000000000005
RBP: 00007f7f4026ff91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7f40441fa0 R14: 00007f7f40441fa0 R15: 0000000000000003
 </TASK>

final repro crashed as (corrupted=false):
L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details.
=============================
WARNING: suspicious RCU usage
syzkaller #0 Not tainted
-----------------------------
include/linux/kvm_host.h:889 suspicious rcu_dereference_check() usage!

other info that might help us debug this:


rcu_scheduler_active = 2, debug_locks = 1
1 lock held by syz.0.17/4315:
 #0: ffff888078bac0c8 (&vcpu->mutex){+.+.}-{3:3}, at: kvm_vcpu_ioctl+0x1c8/0xb80 virt/kvm/kvm_main.c:3871

stack backtrace:
CPU: 0 PID: 4315 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
 __kvm_memslots include/linux/kvm_host.h:887 [inline]
 kvm_vcpu_memslots+0x1b6/0x200 include/linux/kvm_host.h:901
 kvm_vcpu_gfn_to_memslot+0x2b/0x3c0 virt/kvm/kvm_main.c:2158
 kvm_vcpu_unmap+0x5b/0x80 virt/kvm/kvm_main.c:2773
 nested_vmx_vmexit+0x13f5/0x28d0 arch/x86/kvm/vmx/nested.c:4676
 vmx_leave_nested+0x7e/0xc0 arch/x86/kvm/vmx/nested.c:6342
 kvm_leave_nested arch/x86/kvm/x86.c:618 [inline]
 kvm_vcpu_ioctl_x86_set_vcpu_events+0x95b/0x1190 arch/x86/kvm/x86.c:4812
 kvm_arch_vcpu_ioctl+0x1092/0x19d0 arch/x86/kvm/x86.c:5297
 kvm_vcpu_ioctl+0x6b1/0xb80 virt/kvm/kvm_main.c:4050
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f7f401eb749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffea1c02408 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7f40441fa0 RCX: 00007f7f401eb749
RDX: 00002000000002c0 RSI: 000000004040aea0 RDI: 0000000000000005
RBP: 00007f7f4026ff91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7f40441fa0 R14: 00007f7f40441fa0 R15: 0000000000000003
 </TASK>