Extracting prog: 1m9.105120308s
Minimizing prog: 8m33.324452991s
Simplifying prog options: 0s
Extracting C: 41.872593576s
Simplifying C: 7m54.476509588s
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: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:false Wifi:false IEEE802154:false 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$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r1, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(r1, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r1, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
ioctl$KVM_RESET_DIRTY_RINGS(r1, 0xaec7)
program crashed: general protection fault in __rmap_write_protect
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r1, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(r1, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r1, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
program did not crash
testing program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r1, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(r1, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_RESET_DIRTY_RINGS(r1, 0xaec7)
program did not crash
testing program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r1, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r1, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
ioctl$KVM_RESET_DIRTY_RINGS(r1, 0xaec7)
program did not crash
testing program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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$KVM_CAP_DIRTY_LOG_RING-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r1, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r1, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
ioctl$KVM_RESET_DIRTY_RINGS(r1, 0xaec7)
program did not crash
testing program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(r1, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r1, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
ioctl$KVM_RESET_DIRTY_RINGS(r1, 0xaec7)
program did not crash
testing program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(0xffffffffffffffff, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
r0 = ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r0, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(0xffffffffffffffff, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
ioctl$KVM_RESET_DIRTY_RINGS(0xffffffffffffffff, 0xaec7)
program did not crash
testing program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r0, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
r1 = ioctl$KVM_CREATE_VCPU(r0, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(r0, r1, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r0, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
ioctl$KVM_RESET_DIRTY_RINGS(r0, 0xaec7)
program did not crash
testing program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r1, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(r1, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r1, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
ioctl$KVM_RESET_DIRTY_RINGS(r1, 0xaec7)
program did not crash
testing program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r1, 0x4068aea3, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(r1, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r1, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
ioctl$KVM_RESET_DIRTY_RINGS(r1, 0xaec7)
program did not crash
testing program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r1, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(r1, r2, &(0x7f0000fe8000/0x18000)=nil, 0x0, 0x0, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r1, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
ioctl$KVM_RESET_DIRTY_RINGS(r1, 0xaec7)
program did not crash
testing program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r1, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(r1, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r1, 0x4068aea3, 0x0)
ioctl$KVM_RESET_DIRTY_RINGS(r1, 0xaec7)
program did not crash
extracting C reproducer
testing compiled C program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
program crashed: general protection fault in __rmap_write_protect
simplifying C reproducer
testing compiled C program (duration=31.303033956s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
program crashed: general protection fault in __rmap_write_protect
testing compiled C program (duration=31.303033956s, {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:false Wifi:false IEEE802154:false 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$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
program crashed: general protection fault in __rmap_write_protect
testing compiled C program (duration=31.303033956s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
program crashed: general protection fault in __rmap_write_protect
testing compiled C program (duration=31.303033956s, {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$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
program crashed: general protection fault in __rmap_write_protect
testing compiled C program (duration=31.303033956s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
program crashed: general protection fault in __rmap_write_protect
testing compiled C program (duration=31.303033956s, {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$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
program crashed: general protection fault in __rmap_write_protect
testing program (duration=31.303033956s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r1, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(r1, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r1, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
ioctl$KVM_RESET_DIRTY_RINGS(r1, 0xaec7)
program crashed: general protection fault in __rmap_write_protect
validation run: crashed=true
testing program (duration=31.303033956s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r1, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(r1, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r1, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
ioctl$KVM_RESET_DIRTY_RINGS(r1, 0xaec7)
program crashed: general protection fault in __rmap_write_protect
validation run: crashed=true
testing program (duration=31.303033956s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CAP_DIRTY_LOG_RING-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2-ioctl$KVM_RESET_DIRTY_RINGS
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CAP_DIRTY_LOG_RING(r1, 0x4068aea3, &(0x7f0000000100)={0xc0, 0x0, 0x10000})
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(r1, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x21, 0x0, 0x0)
ioctl$KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2(r1, 0x4068aea3, &(0x7f0000000380)={0xa8, 0x0, 0x3})
ioctl$KVM_RESET_DIRTY_RINGS(r1, 0xaec7)
program crashed: general protection fault in __rmap_write_protect
validation run: crashed=true
reproducing took 20m53.588686078s
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.
general protection fault, probably for non-canonical address 0xe06ff51e00048600: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x037fc8f000243000-0x037fc8f000243007]
CPU: 0 PID: 369 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:rmap_get_first arch/x86/kvm/mmu/mmu.c:1120 [inline]
RIP: 0010:__rmap_write_protect+0x2d/0x3a0 arch/x86/kvm/mmu/mmu.c:1242
Code: e5 41 57 41 56 41 55 41 54 53 48 83 ec 18 41 89 f4 48 89 fb 49 be 00 00 00 00 00 fc ff df e8 ea 91 4f 00 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 b4 0d 8e 00 4c 8b 33 31 ff 4c 89
RSP: 0018:ffffc90000c37898 EFLAGS: 00010206
RAX: 006ff91e00048600 RBX: 037fc8f000243000 RCX: ffff88810d912780
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 037fc8f000243000
RBP: ffffc90000c378d8 R08: 0000000000000004 R09: 0000000000000003
R10: fffff52000186f28 R11: 1ffff92000186f28 R12: 0000000000000001
R13: 037fc8f000243000 R14: dffffc0000000000 R15: ffff888122510818
FS: 000055558c893500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000fe9008 CR3: 000000011cc0d000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kvm_mmu_slot_gfn_write_protect+0x14a/0x270 arch/x86/kvm/mmu/mmu.c:1415
kvm_arch_mmu_enable_log_dirty_pt_masked+0x10c/0x3d0 arch/x86/kvm/mmu/mmu.c:1388
kvm_reset_dirty_gfn+0x19d/0x210 virt/kvm/dirty_ring.c:65
kvm_dirty_ring_reset+0x4a9/0x620 virt/kvm/dirty_ring.c:152
kvm_vm_ioctl_reset_dirty_pages+0x1a3/0x3b0 virt/kvm/kvm_main.c:4368
kvm_vm_ioctl+0x385/0xa80 virt/kvm/kvm_main.c:4643
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0x121/0x1a0 fs/ioctl.c:860
__x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860
x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
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: 0033:0x7ff99c46eec9
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:00007fff8d0ec948 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff99c6c5fa0 RCX: 00007ff99c46eec9
RDX: 0000000000000000 RSI: 000000000000aec7 RDI: 0000000000000004
RBP: 00007ff99c4f1f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff99c6c5fa0 R14: 00007ff99c6c5fa0 R15: 0000000000000002
Modules linked in:
---[ end trace 91f44d867aff5b79 ]---
RIP: 0010:rmap_get_first arch/x86/kvm/mmu/mmu.c:1120 [inline]
RIP: 0010:__rmap_write_protect+0x2d/0x3a0 arch/x86/kvm/mmu/mmu.c:1242
Code: e5 41 57 41 56 41 55 41 54 53 48 83 ec 18 41 89 f4 48 89 fb 49 be 00 00 00 00 00 fc ff df e8 ea 91 4f 00 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 b4 0d 8e 00 4c 8b 33 31 ff 4c 89
RSP: 0018:ffffc90000c37898 EFLAGS: 00010206
RAX: 006ff91e00048600 RBX: 037fc8f000243000 RCX: ffff88810d912780
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 037fc8f000243000
RBP: ffffc90000c378d8 R08: 0000000000000004 R09: 0000000000000003
R10: fffff52000186f28 R11: 1ffff92000186f28 R12: 0000000000000001
R13: 037fc8f000243000 R14: dffffc0000000000 R15: ffff888122510818
FS: 000055558c893500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000fe9008 CR3: 000000011cc0d000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: e5 41 in $0x41,%eax
2: 57 push %rdi
3: 41 56 push %r14
5: 41 55 push %r13
7: 41 54 push %r12
9: 53 push %rbx
a: 48 83 ec 18 sub $0x18,%rsp
e: 41 89 f4 mov %esi,%r12d
11: 48 89 fb mov %rdi,%rbx
14: 49 be 00 00 00 00 00 movabs $0xdffffc0000000000,%r14
1b: fc ff df
1e: e8 ea 91 4f 00 call 0x4f920d
23: 48 89 d8 mov %rbx,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 df mov %rbx,%rdi
34: e8 b4 0d 8e 00 call 0x8e0ded
39: 4c 8b 33 mov (%rbx),%r14
3c: 31 ff xor %edi,%edi
3e: 4c rex.WR
3f: 89 .byte 0x89
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.
general protection fault, probably for non-canonical address 0xe06ff51e00048600: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x037fc8f000243000-0x037fc8f000243007]
CPU: 0 PID: 369 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:rmap_get_first arch/x86/kvm/mmu/mmu.c:1120 [inline]
RIP: 0010:__rmap_write_protect+0x2d/0x3a0 arch/x86/kvm/mmu/mmu.c:1242
Code: e5 41 57 41 56 41 55 41 54 53 48 83 ec 18 41 89 f4 48 89 fb 49 be 00 00 00 00 00 fc ff df e8 ea 91 4f 00 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 b4 0d 8e 00 4c 8b 33 31 ff 4c 89
RSP: 0018:ffffc90000c37898 EFLAGS: 00010206
RAX: 006ff91e00048600 RBX: 037fc8f000243000 RCX: ffff88810d912780
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 037fc8f000243000
RBP: ffffc90000c378d8 R08: 0000000000000004 R09: 0000000000000003
R10: fffff52000186f28 R11: 1ffff92000186f28 R12: 0000000000000001
R13: 037fc8f000243000 R14: dffffc0000000000 R15: ffff888122510818
FS: 000055558c893500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000fe9008 CR3: 000000011cc0d000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kvm_mmu_slot_gfn_write_protect+0x14a/0x270 arch/x86/kvm/mmu/mmu.c:1415
kvm_arch_mmu_enable_log_dirty_pt_masked+0x10c/0x3d0 arch/x86/kvm/mmu/mmu.c:1388
kvm_reset_dirty_gfn+0x19d/0x210 virt/kvm/dirty_ring.c:65
kvm_dirty_ring_reset+0x4a9/0x620 virt/kvm/dirty_ring.c:152
kvm_vm_ioctl_reset_dirty_pages+0x1a3/0x3b0 virt/kvm/kvm_main.c:4368
kvm_vm_ioctl+0x385/0xa80 virt/kvm/kvm_main.c:4643
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0x121/0x1a0 fs/ioctl.c:860
__x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860
x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
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: 0033:0x7ff99c46eec9
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:00007fff8d0ec948 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff99c6c5fa0 RCX: 00007ff99c46eec9
RDX: 0000000000000000 RSI: 000000000000aec7 RDI: 0000000000000004
RBP: 00007ff99c4f1f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff99c6c5fa0 R14: 00007ff99c6c5fa0 R15: 0000000000000002
Modules linked in:
---[ end trace 91f44d867aff5b79 ]---
RIP: 0010:rmap_get_first arch/x86/kvm/mmu/mmu.c:1120 [inline]
RIP: 0010:__rmap_write_protect+0x2d/0x3a0 arch/x86/kvm/mmu/mmu.c:1242
Code: e5 41 57 41 56 41 55 41 54 53 48 83 ec 18 41 89 f4 48 89 fb 49 be 00 00 00 00 00 fc ff df e8 ea 91 4f 00 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 b4 0d 8e 00 4c 8b 33 31 ff 4c 89
RSP: 0018:ffffc90000c37898 EFLAGS: 00010206
RAX: 006ff91e00048600 RBX: 037fc8f000243000 RCX: ffff88810d912780
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 037fc8f000243000
RBP: ffffc90000c378d8 R08: 0000000000000004 R09: 0000000000000003
R10: fffff52000186f28 R11: 1ffff92000186f28 R12: 0000000000000001
R13: 037fc8f000243000 R14: dffffc0000000000 R15: ffff888122510818
FS: 000055558c893500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000fe9008 CR3: 000000011cc0d000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: e5 41 in $0x41,%eax
2: 57 push %rdi
3: 41 56 push %r14
5: 41 55 push %r13
7: 41 54 push %r12
9: 53 push %rbx
a: 48 83 ec 18 sub $0x18,%rsp
e: 41 89 f4 mov %esi,%r12d
11: 48 89 fb mov %rdi,%rbx
14: 49 be 00 00 00 00 00 movabs $0xdffffc0000000000,%r14
1b: fc ff df
1e: e8 ea 91 4f 00 call 0x4f920d
23: 48 89 d8 mov %rbx,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 df mov %rbx,%rdi
34: e8 b4 0d 8e 00 call 0x8e0ded
39: 4c 8b 33 mov (%rbx),%r14
3c: 31 ff xor %edi,%edi
3e: 4c rex.WR
3f: 89 .byte 0x89