Extracting prog: 1m11.618049451s
Minimizing prog: 11m50.022368064s
Simplifying prog options: 2m13.753977628s
Extracting C: 35.849504092s
Simplifying C: 0s


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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program crashed: general protection fault in kernfs_find_ns
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
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}}): mount-mkdirat-openat-write-openat$dm_control
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)

program did not crash
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}}): mount-mkdirat-openat-write-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
ioctl$DM_DEV_CREATE(0xffffffffffffffff, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
write(0xffffffffffffffff, &(0x7f0000000a40)='27', 0x2) (async)
r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, 0x0, &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', 0x0, 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, 0x0, 0x0) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40), 0x0) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, 0x0, 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, 0x0)

program did not crash
extracting C reproducer
testing compiled C 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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
program did not crash
simplifying guilty program options
testing program (duration=30s, {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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
testing program (duration=30s, {Threaded:true 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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
testing program (duration=30s, {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: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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program did not crash
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program crashed: general protection fault in kernfs_find_ns
validation run: crashed=true
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program crashed: general protection fault in del_gendisk
validation run: crashed=true
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}}): mount-mkdirat-openat-write-openat$dm_control-ioctl$DM_DEV_CREATE
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000700)='./proc\x00', &(0x7f0000000740)='proc\x00', 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000a40)='27', 0x2) (async)
r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f0000000a80), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000b00)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}})

program crashed: general protection fault in del_gendisk
validation run: crashed=true
reproducing took 18m34.496584333s
repro crashed as (corrupted=false):
R13: 00007f3349597128 R14: 00007f3349597090 R15: 00007ffcaa4edc98
---[ end trace 448ea984a7992ed8 ]---
general protection fault, probably for non-canonical address 0xdffffc000000001a: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000000d0-0x00000000000000d7]
CPU: 1 PID: 697 Comm: syz.1.80 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:kill_device drivers/base/core.c:3388 [inline]
RIP: 0010:device_del+0xe0/0xe60 drivers/base/core.c:3416
Code: 42 80 3c 30 00 74 08 4c 89 ef e8 5b f4 ef fe 41 bf d0 00 00 00 4d 03 7d 00 4d 89 fe 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 06 84 c0 0f 85 b7 0c 00 00 45 0f b6 27 44 89 e6 83 e6
RSP: 0018:ffffc900018f7980 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888116468108 RCX: ffffffff84823af2
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc900018f7900
RBP: ffffc900018f7a78 R08: ffffc900018f7907 R09: 1ffff9200031ef20
R10: dffffc0000000000 R11: fffff5200031ef21 R12: ffff888116468068
R13: ffff8881164680d0 R14: 000000000000001a R15: 00000000000000d0
FS:  00007f334914f6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa0af5fa200 CR3: 0000000114704000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 del_gendisk+0x85d/0xa10 block/genhd.c:953
 cleanup_mapped_device+0x16c/0x270 drivers/md/dm.c:1771
 alloc_dev drivers/md/dm.c:1903 [inline]
 dm_create+0xb03/0xdd0 drivers/md/dm.c:2081
 dev_create+0x12e/0x2c0 drivers/md/dm-ioctl.c:784
 ctl_ioctl drivers/md/dm-ioctl.c:1925 [inline]
 dm_ctl_ioctl+0x8ee/0xca0 drivers/md/dm-ioctl.c:1947
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl+0x121/0x1a0 fs/ioctl.c:739
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f3349310b19
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f334914f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3349597090 RCX: 00007f3349310b19
RDX: 0000200000000b00 RSI: 00000000c138fd03 RDI: 0000000000000004
RBP: 00007f33493a8b70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3349597128 R14: 00007f3349597090 R15: 00007ffcaa4edc98
Modules linked in:
---[ end trace 448ea984a7992eda ]---
RIP: 0010:kill_device drivers/base/core.c:3388 [inline]
RIP: 0010:device_del+0xe0/0xe60 drivers/base/core.c:3416
Code: 42 80 3c 30 00 74 08 4c 89 ef e8 5b f4 ef fe 41 bf d0 00 00 00 4d 03 7d 00 4d 89 fe 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 06 84 c0 0f 85 b7 0c 00 00 45 0f b6 27 44 89 e6 83 e6
RSP: 0018:ffffc900018f7980 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888116468108 RCX: ffffffff84823af2
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc900018f7900
RBP: ffffc900018f7a78 R08: ffffc900018f7907 R09: 1ffff9200031ef20
R10: dffffc0000000000 R11: fffff5200031ef21 R12: ffff888116468068
R13: ffff8881164680d0 R14: 000000000000001a R15: 00000000000000d0
FS:  00007f334914f6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdffd0a0d58 CR3: 0000000114704000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1)
   5:	74 08                	je     0xf
   7:	4c 89 ef             	mov    %r13,%rdi
   a:	e8 5b f4 ef fe       	call   0xfeeff46a
   f:	41 bf d0 00 00 00    	mov    $0xd0,%r15d
  15:	4d 03 7d 00          	add    0x0(%r13),%r15
  19:	4d 89 fe             	mov    %r15,%r14
  1c:	49 c1 ee 03          	shr    $0x3,%r14
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	41 0f b6 04 06       	movzbl (%r14,%rax,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 b7 0c 00 00    	jne    0xcee
  37:	45 0f b6 27          	movzbl (%r15),%r12d
  3b:	44 89 e6             	mov    %r12d,%esi
  3e:	83                   	.byte 0x83
  3f:	e6                   	.byte 0xe6

final repro crashed as (corrupted=false):
R13: 00007f3349597128 R14: 00007f3349597090 R15: 00007ffcaa4edc98
---[ end trace 448ea984a7992ed8 ]---
general protection fault, probably for non-canonical address 0xdffffc000000001a: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000000d0-0x00000000000000d7]
CPU: 1 PID: 697 Comm: syz.1.80 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:kill_device drivers/base/core.c:3388 [inline]
RIP: 0010:device_del+0xe0/0xe60 drivers/base/core.c:3416
Code: 42 80 3c 30 00 74 08 4c 89 ef e8 5b f4 ef fe 41 bf d0 00 00 00 4d 03 7d 00 4d 89 fe 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 06 84 c0 0f 85 b7 0c 00 00 45 0f b6 27 44 89 e6 83 e6
RSP: 0018:ffffc900018f7980 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888116468108 RCX: ffffffff84823af2
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc900018f7900
RBP: ffffc900018f7a78 R08: ffffc900018f7907 R09: 1ffff9200031ef20
R10: dffffc0000000000 R11: fffff5200031ef21 R12: ffff888116468068
R13: ffff8881164680d0 R14: 000000000000001a R15: 00000000000000d0
FS:  00007f334914f6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa0af5fa200 CR3: 0000000114704000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 del_gendisk+0x85d/0xa10 block/genhd.c:953
 cleanup_mapped_device+0x16c/0x270 drivers/md/dm.c:1771
 alloc_dev drivers/md/dm.c:1903 [inline]
 dm_create+0xb03/0xdd0 drivers/md/dm.c:2081
 dev_create+0x12e/0x2c0 drivers/md/dm-ioctl.c:784
 ctl_ioctl drivers/md/dm-ioctl.c:1925 [inline]
 dm_ctl_ioctl+0x8ee/0xca0 drivers/md/dm-ioctl.c:1947
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl+0x121/0x1a0 fs/ioctl.c:739
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f3349310b19
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f334914f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3349597090 RCX: 00007f3349310b19
RDX: 0000200000000b00 RSI: 00000000c138fd03 RDI: 0000000000000004
RBP: 00007f33493a8b70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3349597128 R14: 00007f3349597090 R15: 00007ffcaa4edc98
Modules linked in:
---[ end trace 448ea984a7992eda ]---
RIP: 0010:kill_device drivers/base/core.c:3388 [inline]
RIP: 0010:device_del+0xe0/0xe60 drivers/base/core.c:3416
Code: 42 80 3c 30 00 74 08 4c 89 ef e8 5b f4 ef fe 41 bf d0 00 00 00 4d 03 7d 00 4d 89 fe 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 06 84 c0 0f 85 b7 0c 00 00 45 0f b6 27 44 89 e6 83 e6
RSP: 0018:ffffc900018f7980 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888116468108 RCX: ffffffff84823af2
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc900018f7900
RBP: ffffc900018f7a78 R08: ffffc900018f7907 R09: 1ffff9200031ef20
R10: dffffc0000000000 R11: fffff5200031ef21 R12: ffff888116468068
R13: ffff8881164680d0 R14: 000000000000001a R15: 00000000000000d0
FS:  00007f334914f6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdffd0a0d58 CR3: 0000000114704000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1)
   5:	74 08                	je     0xf
   7:	4c 89 ef             	mov    %r13,%rdi
   a:	e8 5b f4 ef fe       	call   0xfeeff46a
   f:	41 bf d0 00 00 00    	mov    $0xd0,%r15d
  15:	4d 03 7d 00          	add    0x0(%r13),%r15
  19:	4d 89 fe             	mov    %r15,%r14
  1c:	49 c1 ee 03          	shr    $0x3,%r14
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	41 0f b6 04 06       	movzbl (%r14,%rax,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 b7 0c 00 00    	jne    0xcee
  37:	45 0f b6 27          	movzbl (%r15),%r12d
  3b:	44 89 e6             	mov    %r12d,%esi
  3e:	83                   	.byte 0x83
  3f:	e6                   	.byte 0xe6