Extracting prog: 5m25.445986646s
Minimizing prog: 1h56m24.336569499s
Simplifying prog options: 5m40.559924085s
Extracting C: 2m48.48766397s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program crashed: INFO: rcu detected stall in sys_openat
single: successfully extracted reproducer
found reproducer with 11 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(0xffffffffffffffff, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(0xffffffffffffffff, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(0xffffffffffffffff, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r1 = ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r1, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r1, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r1 = ioctl$KVM_CREATE_VCPU(r0, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r0, 0xffffffffffffffff, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r1, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r1, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, 0x0, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, 0x0, 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, 0x0, 0x0, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, 0x0}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
program crashed: INFO: rcu detected stall in corrupted
a never seen crash title: INFO: rcu detected stall in corrupted, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program crashed: INFO: rcu detected stall in security_file_open
a never seen crash title: INFO: rcu detected stall in security_file_open, ignore
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program crashed: WARNING in rcu_check_gp_start_stall
a never seen crash title: WARNING in rcu_check_gp_start_stall, ignore
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program crashed: INFO: rcu detected stall in gc_worker
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
reproducing took 2h18m40.794792724s
repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5960/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=13001, q=767 ncpus=2)
task:syz-executor    state:R  running task     stack:19312 pid:5960  tgid:5960  ppid:5954   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5282 [inline]
 __schedule+0x14ed/0x5040 kernel/sched/core.c:6894
 preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:7078
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
 __local_bh_enable_ip+0xe1/0x130 kernel/softirq.c:457
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:924 [inline]
 __dev_queue_xmit+0x19cb/0x31c0 net/core/dev.c:4847
 dev_queue_xmit include/linux/netdevice.h:3387 [inline]
 __netlink_deliver_tap_skb net/netlink/af_netlink.c:307 [inline]
 __netlink_deliver_tap+0x5d9/0x8b0 net/netlink/af_netlink.c:325
 netlink_deliver_tap+0x19c/0x1b0 net/netlink/af_netlink.c:338
 netlink_deliver_tap_kernel net/netlink/af_netlink.c:347 [inline]
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x7fa/0x9e0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec+0x18f/0x1d0 net/socket.c:737
 __sock_sendmsg net/socket.c:752 [inline]
 __sys_sendto+0x3ce/0x540 net/socket.c:2221
 __do_sys_sendto net/socket.c:2228 [inline]
 __se_sys_sendto net/socket.c:2224 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2224
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feaafb915dc
RSP: 002b:00007ffeee5bdbc0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007feab0914620 RCX: 00007feaafb915dc
RDX: 0000000000000040 RSI: 00007feab0914670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffeee5bdc14 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007feab0914670 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10405 jiffies! g13001 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27640 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5282 [inline]
 __schedule+0x14ed/0x5040 kernel/sched/core.c:6894
 __schedule_loop kernel/sched/core.c:6976 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6991
 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x301/0x11b0 kernel/rcu/tree.c:2095
 rcu_gp_kthread+0x9b/0x2d0 kernel/rcu/tree.c:2297
 kthread+0x389/0x480 kernel/kthread.c:467
 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
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
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:82
Code: cc cc cc cc 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 43 ce 21 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: 00000000000d2783 RBX: ffffffff8197571e RCX: 0000000080000001
RDX: 0000000000000001 RSI: ffffffff8dab1bdb RDI: ffffffff8be253e0
RBP: ffffc90000197f10 R08: ffff8880b873375b R09: 1ffff110170e66eb
R10: dffffc0000000000 R11: ffffed10170e66ec R12: ffffffff8fc3e770
R13: 1ffff11003b54b58 R14: 0000000000000001 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff888125ac0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000737ee000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000400
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 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>

report is corrupted, running repro again
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-openat$vnet-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_SET_GUEST_DEBUG_x86-ioctl$KVM_RUN
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, r0, &(0x7f00003a1000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, &(0x7f0000000000)="9a01000000f800b8d58800000f23d00f21f8351000000d0f23f864640f79ea66baf80cb8c85f5480ef66bafc0cecc4c2adac17b9550200000f320f2860c7c4e11751df0f2e2d00000080b9800000c00f3235008000000f30", 0x58}], 0x1, 0x4a, 0x0, 0x0)
ioctl$KVM_SET_GUEST_DEBUG_x86(r2, 0x4048ae9b, &(0x7f0000000080)={0x40003, 0x0, {[0xffffffffffffffff, 0x0, 0x8, 0xfffffffdefffff16, 0x3, 0x10, 0x4, 0x4]}})
ioctl$KVM_RUN(r2, 0xae80, 0x0)

program crashed: INFO: rcu detected stall in netlink_sendmsg
final repro crashed as (corrupted=false):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5918/2:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=14153, q=606 ncpus=2)
task:udevd           state:R  running task     stack:25864 pid:5918  tgid:5918  ppid:5191   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5282 [inline]
 __schedule+0x14ed/0x5040 kernel/sched/core.c:6894
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7221
 irqentry_exit+0x5e3/0x670 kernel/entry/common.c:216
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lockdep_rht_mutex_is_held+0x27/0x90 lib/rhashtable.c:49
Code: 90 90 90 f3 0f 1e fa 55 53 48 89 fb e8 d2 ac 29 fd 48 c7 c0 80 17 c4 8f 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 75 40 8b 2d 5f c8 2c 0b 31 ff 89 ee e8 e6 b0 29 fd 85 ed 74
RSP: 0018:ffffc900043bf648 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffff88801e2a98d8 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88801e2a98d8
RBP: ffffc900043bf760 R08: ffffffff8984581d R09: ffffffff8e33efa0
R10: ffffc900043bf6e0 R11: fffff52000877ede R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88801e2a98d8 R15: ffff8880331ffc00
 __rhashtable_lookup include/linux/rhashtable.h:632 [inline]
 rhashtable_lookup include/linux/rhashtable.h:677 [inline]
 rhashtable_lookup_fast include/linux/rhashtable.h:715 [inline]
 __netlink_lookup+0x19b/0x8a0 net/netlink/af_netlink.c:498
 netlink_lookup+0xdb/0x200 net/netlink/af_netlink.c:518
 netlink_getsockbyportid net/netlink/af_netlink.c:1141 [inline]
 netlink_unicast+0x180/0x9e0 net/netlink/af_netlink.c:1338
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec+0x18f/0x1d0 net/socket.c:737
 __sock_sendmsg net/socket.c:752 [inline]
 ____sys_sendmsg+0x577/0x880 net/socket.c:2610
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2664
 __sys_sendmsg net/socket.c:2696 [inline]
 __do_sys_sendmsg net/socket.c:2701 [inline]
 __se_sys_sendmsg net/socket.c:2699 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2699
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0a00ca7407
RSP: 002b:00007ffdc3f69830 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f0a01474880 RCX: 00007f0a00ca7407
RDX: 0000000000000000 RSI: 00007ffdc3f69890 RDI: 000000000000000c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000000cb
R13: 000055d6c669f4d0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10439 jiffies! g14153 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:28080 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5282 [inline]
 __schedule+0x14ed/0x5040 kernel/sched/core.c:6894
 __schedule_loop kernel/sched/core.c:6976 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6991
 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x301/0x11b0 kernel/rcu/tree.c:2095
 rcu_gp_kthread+0x9b/0x2d0 kernel/rcu/tree.c:2297
 kthread+0x389/0x480 kernel/kthread.c:467
 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
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
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:82
Code: cc cc cc cc 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 43 ce 21 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: 00000000000d6a2f RBX: ffffffff8197571e RCX: 0000000080000001
RDX: 0000000000000001 RSI: ffffffff8dab1bdb RDI: ffffffff8be253e0
RBP: ffffc90000197f10 R08: ffff8880b873375b R09: 1ffff110170e66eb
R10: dffffc0000000000 R11: ffffed10170e66ec R12: ffffffff8fc3e770
R13: 1ffff11003adcb58 R14: 0000000000000001 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff888125ac0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000795be000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000400
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 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>