Extracting prog: 2m5.725437812s
Minimizing prog: 14m15.302876812s
Simplifying prog options: 0s
Extracting C: 34.844153607s
Simplifying C: 8m17.637458969s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect-syz_usb_control_io-syz_usb_control_io$printer
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r2, 0x4048aecb, &(0x7f0000000240)={0x7, 0x0, [{0x7, 0xffffffff, 0x2dc43c0faeff3249, 0x0, 0x6, 0x6, 0x2}, {0x80000007, 0x4, 0x0, 0x8001, 0x27, 0x7, 0x7f}, {0x40000001, 0x8, 0x0, 0x3, 0x7fffffff, 0x5, 0xffff}, {0xb, 0xe5f, 0x1, 0x7, 0xdf4, 0x6, 0x7fffffff}, {0x80000000, 0x0, 0x5, 0x6, 0x80000000, 0x0, 0xffffffff}, {0xd, 0x2bb, 0x1, 0xd, 0x3, 0x7ff, 0xffffffff}, {0x80000008, 0x3bf, 0x0, 0xf9, 0xffffa15c, 0xa524, 0x7}]})
r3 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)
syz_usb_control_io(r3, 0x0, 0x0)
syz_usb_control_io$printer(r3, 0x0, 0x0)

program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=47.50636627s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect-syz_usb_control_io
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r2, 0x4048aecb, &(0x7f0000000240)={0x7, 0x0, [{0x7, 0xffffffff, 0x2dc43c0faeff3249, 0x0, 0x6, 0x6, 0x2}, {0x80000007, 0x4, 0x0, 0x8001, 0x27, 0x7, 0x7f}, {0x40000001, 0x8, 0x0, 0x3, 0x7fffffff, 0x5, 0xffff}, {0xb, 0xe5f, 0x1, 0x7, 0xdf4, 0x6, 0x7fffffff}, {0x80000000, 0x0, 0x5, 0x6, 0x80000000, 0x0, 0xffffffff}, {0xd, 0x2bb, 0x1, 0xd, 0x3, 0x7ff, 0xffffffff}, {0x80000008, 0x3bf, 0x0, 0xf9, 0xffffa15c, 0xa524, 0x7}]})
r3 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)
syz_usb_control_io(r3, 0x0, 0x0)

program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
testing program (duration=47.50636627s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r2, 0x4048aecb, &(0x7f0000000240)={0x7, 0x0, [{0x7, 0xffffffff, 0x2dc43c0faeff3249, 0x0, 0x6, 0x6, 0x2}, {0x80000007, 0x4, 0x0, 0x8001, 0x27, 0x7, 0x7f}, {0x40000001, 0x8, 0x0, 0x3, 0x7fffffff, 0x5, 0xffff}, {0xb, 0xe5f, 0x1, 0x7, 0xdf4, 0x6, 0x7fffffff}, {0x80000000, 0x0, 0x5, 0x6, 0x80000000, 0x0, 0xffffffff}, {0xd, 0x2bb, 0x1, 0xd, 0x3, 0x7ff, 0xffffffff}, {0x80000008, 0x3bf, 0x0, 0xf9, 0xffffa15c, 0xa524, 0x7}]})
syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)

program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
testing program (duration=47.50636627s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r2, 0x4048aecb, &(0x7f0000000240)={0x7, 0x0, [{0x7, 0xffffffff, 0x2dc43c0faeff3249, 0x0, 0x6, 0x6, 0x2}, {0x80000007, 0x4, 0x0, 0x8001, 0x27, 0x7, 0x7f}, {0x40000001, 0x8, 0x0, 0x3, 0x7fffffff, 0x5, 0xffff}, {0xb, 0xe5f, 0x1, 0x7, 0xdf4, 0x6, 0x7fffffff}, {0x80000000, 0x0, 0x5, 0x6, 0x80000000, 0x0, 0xffffffff}, {0xd, 0x2bb, 0x1, 0xd, 0x3, 0x7ff, 0xffffffff}, {0x80000008, 0x3bf, 0x0, 0xf9, 0xffffa15c, 0xa524, 0x7}]})

program did not crash
testing program (duration=47.50636627s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$KVM_CREATE_VCPU-syz_usb_connect
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)

program did not crash
testing program (duration=47.50636627s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$KVM_SET_CPUID2-syz_usb_connect
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_CPUID2(0xffffffffffffffff, 0x4048aecb, &(0x7f0000000240)={0x7, 0x0, [{0x7, 0xffffffff, 0x2dc43c0faeff3249, 0x0, 0x6, 0x6, 0x2}, {0x80000007, 0x4, 0x0, 0x8001, 0x27, 0x7, 0x7f}, {0x40000001, 0x8, 0x0, 0x3, 0x7fffffff, 0x5, 0xffff}, {0xb, 0xe5f, 0x1, 0x7, 0xdf4, 0x6, 0x7fffffff}, {0x80000000, 0x0, 0x5, 0x6, 0x80000000, 0x0, 0xffffffff}, {0xd, 0x2bb, 0x1, 0xd, 0x3, 0x7ff, 0xffffffff}, {0x80000008, 0x3bf, 0x0, 0xf9, 0xffffa15c, 0xa524, 0x7}]})
syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)

program did not crash
testing program (duration=47.50636627s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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-ioctl$KVM_SET_CPUID2-syz_usb_connect
detailed listing:
executing program 0:
openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
r0 = ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r0, 0x4048aecb, &(0x7f0000000240)={0x7, 0x0, [{0x7, 0xffffffff, 0x2dc43c0faeff3249, 0x0, 0x6, 0x6, 0x2}, {0x80000007, 0x4, 0x0, 0x8001, 0x27, 0x7, 0x7f}, {0x40000001, 0x8, 0x0, 0x3, 0x7fffffff, 0x5, 0xffff}, {0xb, 0xe5f, 0x1, 0x7, 0xdf4, 0x6, 0x7fffffff}, {0x80000000, 0x0, 0x5, 0x6, 0x80000000, 0x0, 0xffffffff}, {0xd, 0x2bb, 0x1, 0xd, 0x3, 0x7ff, 0xffffffff}, {0x80000008, 0x3bf, 0x0, 0xf9, 0xffffa15c, 0xa524, 0x7}]})
syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)

program did not crash
testing program (duration=47.50636627s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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-ioctl$KVM_SET_CPUID2-syz_usb_connect
detailed listing:
executing program 0:
r0 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0)
r1 = ioctl$KVM_CREATE_VCPU(r0, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r1, 0x4048aecb, &(0x7f0000000240)={0x7, 0x0, [{0x7, 0xffffffff, 0x2dc43c0faeff3249, 0x0, 0x6, 0x6, 0x2}, {0x80000007, 0x4, 0x0, 0x8001, 0x27, 0x7, 0x7f}, {0x40000001, 0x8, 0x0, 0x3, 0x7fffffff, 0x5, 0xffff}, {0xb, 0xe5f, 0x1, 0x7, 0xdf4, 0x6, 0x7fffffff}, {0x80000000, 0x0, 0x5, 0x6, 0x80000000, 0x0, 0xffffffff}, {0xd, 0x2bb, 0x1, 0xd, 0x3, 0x7ff, 0xffffffff}, {0x80000008, 0x3bf, 0x0, 0xf9, 0xffffa15c, 0xa524, 0x7}]})
syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)

program did not crash
testing program (duration=47.50636627s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, 0x0, 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r2, 0x4048aecb, &(0x7f0000000240)={0x7, 0x0, [{0x7, 0xffffffff, 0x2dc43c0faeff3249, 0x0, 0x6, 0x6, 0x2}, {0x80000007, 0x4, 0x0, 0x8001, 0x27, 0x7, 0x7f}, {0x40000001, 0x8, 0x0, 0x3, 0x7fffffff, 0x5, 0xffff}, {0xb, 0xe5f, 0x1, 0x7, 0xdf4, 0x6, 0x7fffffff}, {0x80000000, 0x0, 0x5, 0x6, 0x80000000, 0x0, 0xffffffff}, {0xd, 0x2bb, 0x1, 0xd, 0x3, 0x7ff, 0xffffffff}, {0x80000008, 0x3bf, 0x0, 0xf9, 0xffffa15c, 0xa524, 0x7}]})
syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)

program did not crash
testing program (duration=47.50636627s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r2, 0x4048aecb, 0x0)
syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)

program did not crash
testing program (duration=47.50636627s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r2, 0x4048aecb, &(0x7f0000000240))
syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)

program did not crash
testing program (duration=47.50636627s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r2, 0x4048aecb, &(0x7f0000000240)={0x7, 0x0, [{0x7, 0xffffffff, 0x2dc43c0faeff3249, 0x0, 0x6, 0x6, 0x2}, {0x80000007, 0x4, 0x0, 0x8001, 0x27, 0x7, 0x7f}, {0x40000001, 0x8, 0x0, 0x3, 0x7fffffff, 0x5, 0xffff}, {0xb, 0xe5f, 0x1, 0x7, 0xdf4, 0x6, 0x7fffffff}, {0x80000000, 0x0, 0x5, 0x6, 0x80000000, 0x0, 0xffffffff}, {0xd, 0x2bb, 0x1, 0xd, 0x3, 0x7ff, 0xffffffff}, {0x80000008, 0x3bf, 0x0, 0xf9, 0xffffa15c, 0xa524, 0x7}]})
syz_usb_connect(0x0, 0x3f, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=47.50636627s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
simplifying C reproducer
testing compiled C program (duration=47.50636627s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
testing compiled C program (duration=47.50636627s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace 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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
testing compiled C program (duration=47.50636627s, {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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
testing compiled C program (duration=47.50636627s, {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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
testing compiled C program (duration=47.50636627s, {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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
testing compiled C program (duration=47.50636627s, {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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
testing compiled C program (duration=47.50636627s, {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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
testing compiled C program (duration=47.50636627s, {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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
testing program (duration=47.50636627s, {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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r2, 0x4048aecb, &(0x7f0000000240)={0x7, 0x0, [{0x7, 0xffffffff, 0x2dc43c0faeff3249, 0x0, 0x6, 0x6, 0x2}, {0x80000007, 0x4, 0x0, 0x8001, 0x27, 0x7, 0x7f}, {0x40000001, 0x8, 0x0, 0x3, 0x7fffffff, 0x5, 0xffff}, {0xb, 0xe5f, 0x1, 0x7, 0xdf4, 0x6, 0x7fffffff}, {0x80000000, 0x0, 0x5, 0x6, 0x80000000, 0x0, 0xffffffff}, {0xd, 0x2bb, 0x1, 0xd, 0x3, 0x7ff, 0xffffffff}, {0x80000008, 0x3bf, 0x0, 0xf9, 0xffffa15c, 0xa524, 0x7}]})
syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)

program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
validation run: crashed=true
testing program (duration=47.50636627s, {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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r2, 0x4048aecb, &(0x7f0000000240)={0x7, 0x0, [{0x7, 0xffffffff, 0x2dc43c0faeff3249, 0x0, 0x6, 0x6, 0x2}, {0x80000007, 0x4, 0x0, 0x8001, 0x27, 0x7, 0x7f}, {0x40000001, 0x8, 0x0, 0x3, 0x7fffffff, 0x5, 0xffff}, {0xb, 0xe5f, 0x1, 0x7, 0xdf4, 0x6, 0x7fffffff}, {0x80000000, 0x0, 0x5, 0x6, 0x80000000, 0x0, 0xffffffff}, {0xd, 0x2bb, 0x1, 0xd, 0x3, 0x7ff, 0xffffffff}, {0x80000008, 0x3bf, 0x0, 0xf9, 0xffffa15c, 0xa524, 0x7}]})
syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)

program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
validation run: crashed=true
testing program (duration=47.50636627s, {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$KVM_CREATE_VCPU-ioctl$KVM_SET_CPUID2-syz_usb_connect
detailed listing:
executing program 0:
r0 = openat$kvm(0x0, &(0x7f0000000100), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_CPUID2(r2, 0x4048aecb, &(0x7f0000000240)={0x7, 0x0, [{0x7, 0xffffffff, 0x2dc43c0faeff3249, 0x0, 0x6, 0x6, 0x2}, {0x80000007, 0x4, 0x0, 0x8001, 0x27, 0x7, 0x7f}, {0x40000001, 0x8, 0x0, 0x3, 0x7fffffff, 0x5, 0xffff}, {0xb, 0xe5f, 0x1, 0x7, 0xdf4, 0x6, 0x7fffffff}, {0x80000000, 0x0, 0x5, 0x6, 0x80000000, 0x0, 0xffffffff}, {0xd, 0x2bb, 0x1, 0xd, 0x3, 0x7ff, 0xffffffff}, {0x80000008, 0x3bf, 0x0, 0xf9, 0xffffa15c, 0xa524, 0x7}]})
syz_usb_connect(0x0, 0x3f, &(0x7f0000000540)=ANY=[@ANYBLOB], 0x0)

program crashed: WARNING: locking bug in kvm_xen_set_evtchn_fast
validation run: crashed=true
reproducing took 29m16.009174293s
repro crashed as (corrupted=false):
=============================
[ BUG: Invalid wait context ]
syzkaller #0 Not tainted
-----------------------------
swapper/1/0 is trying to lock:
ffff88807e7552e0 (&gpc->lock){....}-{3:3}, at: kvm_xen_set_evtchn_fast+0x1fb/0x9b0 arch/x86/kvm/xen.c:1820
other info that might help us debug this:
context-{2:2}
1 lock held by swapper/1/0:
 #0: ffff88807e755838 (&kvm->srcu){.?.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:185 [inline]
 #0: ffff88807e755838 (&kvm->srcu){.?.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:277 [inline]
 #0: ffff88807e755838 (&kvm->srcu){.?.+}-{0:0}, at: kvm_xen_set_evtchn_fast+0x1c3/0x9b0 arch/x86/kvm/xen.c:1818
stack backtrace:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <IRQ>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_lock_invalid_wait_context kernel/locking/lockdep.c:4830 [inline]
 check_wait_context kernel/locking/lockdep.c:4902 [inline]
 __lock_acquire+0xec2/0x2cf0 kernel/locking/lockdep.c:5187
 lock_acquire+0x107/0x340 kernel/locking/lockdep.c:5868
 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
 _raw_read_lock_irqsave+0x48/0x60 kernel/locking/spinlock.c:236
 kvm_xen_set_evtchn_fast+0x1fb/0x9b0 arch/x86/kvm/xen.c:1820
 xen_timer_callback+0x109/0x220 arch/x86/kvm/xen.c:140
 __run_hrtimer kernel/time/hrtimer.c:1777 [inline]
 __hrtimer_run_queues+0x4d0/0xc30 kernel/time/hrtimer.c:1841
 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1903
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1045 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x3e0 arch/x86/kernel/apic/apic.c:1062
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:82
Code: 13 e3 02 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 73 c1 0e 00 f3 0f 1e fa fb f4 <c3> cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000197e20 EFLAGS: 000002c2
RAX: 0000000000064249 RBX: ffffffff819713ee RCX: 0000000080000001
RDX: 0000000000000001 RSI: ffffffff8d79207b RDI: ffffffff8bc083e0
RBP: ffffc90000197f10 R08: ffff8880b87336db R09: 1ffff110170e66db
R10: dffffc0000000000 R11: ffffed10170e66dc R12: ffffffff8f822270
R13: 1ffff110038d4b70 R14: 0000000000000001 R15: 0000000000000001
 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
 default_idle+0x13/0x20 arch/x86/kernel/process.c:767
 default_idle_call+0x73/0xb0 kernel/sched/idle.c:122
 cpuidle_idle_call kernel/sched/idle.c:191 [inline]
 do_idle+0x1be/0x4d0 kernel/sched/idle.c:332
 cpu_startup_entry+0x44/0x60 kernel/sched/idle.c:430
 start_secondary+0x101/0x110 arch/x86/kernel/smpboot.c:312
 common_startup_64+0x13e/0x147
 </TASK>
----------------
Code disassembly (best guess):
   0:	13 e3                	adc    %ebx,%esp
   2:	02 00                	add    (%rax),%al
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	f3 0f 1e fa          	endbr64
  1b:	66 90                	xchg   %ax,%ax
  1d:	0f 00 2d 73 c1 0e 00 	verw   0xec173(%rip)        # 0xec197
  24:	f3 0f 1e fa          	endbr64
  28:	fb                   	sti
  29:	f4                   	hlt
* 2a:	c3                   	ret <-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	cc                   	int3
  31:	cc                   	int3
  32:	cc                   	int3
  33:	cc                   	int3
  34:	cc                   	int3
  35:	cc                   	int3
  36:	cc                   	int3
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

final repro crashed as (corrupted=false):
=============================
[ BUG: Invalid wait context ]
syzkaller #0 Not tainted
-----------------------------
swapper/1/0 is trying to lock:
ffff88807e7552e0 (&gpc->lock){....}-{3:3}, at: kvm_xen_set_evtchn_fast+0x1fb/0x9b0 arch/x86/kvm/xen.c:1820
other info that might help us debug this:
context-{2:2}
1 lock held by swapper/1/0:
 #0: ffff88807e755838 (&kvm->srcu){.?.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:185 [inline]
 #0: ffff88807e755838 (&kvm->srcu){.?.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:277 [inline]
 #0: ffff88807e755838 (&kvm->srcu){.?.+}-{0:0}, at: kvm_xen_set_evtchn_fast+0x1c3/0x9b0 arch/x86/kvm/xen.c:1818
stack backtrace:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <IRQ>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_lock_invalid_wait_context kernel/locking/lockdep.c:4830 [inline]
 check_wait_context kernel/locking/lockdep.c:4902 [inline]
 __lock_acquire+0xec2/0x2cf0 kernel/locking/lockdep.c:5187
 lock_acquire+0x107/0x340 kernel/locking/lockdep.c:5868
 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
 _raw_read_lock_irqsave+0x48/0x60 kernel/locking/spinlock.c:236
 kvm_xen_set_evtchn_fast+0x1fb/0x9b0 arch/x86/kvm/xen.c:1820
 xen_timer_callback+0x109/0x220 arch/x86/kvm/xen.c:140
 __run_hrtimer kernel/time/hrtimer.c:1777 [inline]
 __hrtimer_run_queues+0x4d0/0xc30 kernel/time/hrtimer.c:1841
 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1903
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1045 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x3e0 arch/x86/kernel/apic/apic.c:1062
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:82
Code: 13 e3 02 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 73 c1 0e 00 f3 0f 1e fa fb f4 <c3> cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000197e20 EFLAGS: 000002c2
RAX: 0000000000064249 RBX: ffffffff819713ee RCX: 0000000080000001
RDX: 0000000000000001 RSI: ffffffff8d79207b RDI: ffffffff8bc083e0
RBP: ffffc90000197f10 R08: ffff8880b87336db R09: 1ffff110170e66db
R10: dffffc0000000000 R11: ffffed10170e66dc R12: ffffffff8f822270
R13: 1ffff110038d4b70 R14: 0000000000000001 R15: 0000000000000001
 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
 default_idle+0x13/0x20 arch/x86/kernel/process.c:767
 default_idle_call+0x73/0xb0 kernel/sched/idle.c:122
 cpuidle_idle_call kernel/sched/idle.c:191 [inline]
 do_idle+0x1be/0x4d0 kernel/sched/idle.c:332
 cpu_startup_entry+0x44/0x60 kernel/sched/idle.c:430
 start_secondary+0x101/0x110 arch/x86/kernel/smpboot.c:312
 common_startup_64+0x13e/0x147
 </TASK>
----------------
Code disassembly (best guess):
   0:	13 e3                	adc    %ebx,%esp
   2:	02 00                	add    (%rax),%al
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	f3 0f 1e fa          	endbr64
  1b:	66 90                	xchg   %ax,%ax
  1d:	0f 00 2d 73 c1 0e 00 	verw   0xec173(%rip)        # 0xec197
  24:	f3 0f 1e fa          	endbr64
  28:	fb                   	sti
  29:	f4                   	hlt
* 2a:	c3                   	ret <-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	cc                   	int3
  31:	cc                   	int3
  32:	cc                   	int3
  33:	cc                   	int3
  34:	cc                   	int3
  35:	cc                   	int3
  36:	cc                   	int3
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop