Extracting prog: 2m11.439280707s
Minimizing prog: 36m23.873081511s
Simplifying prog options: 3m6.067107604s
Extracting C: 1m34.652849209s
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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program crashed: general protection fault in kernfs_find_ns
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
ioctl(0xffffffffffffffff, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r0, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
write(0xffffffffffffffff, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r0, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', 0x0, 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, 0x0, 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0), 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) (async)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program crashed: general protection fault in kernfs_find_ns
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./dev\x00', 0x0, 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, 0x0)

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100))

program did not crash
extracting C reproducer
testing compiled C program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
program did not crash
simplifying guilty program options
testing program (duration=1m30.710357418s, {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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program did not crash
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program crashed: general protection fault in kernfs_find_ns
validation run: crashed=true
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program crashed: general protection fault in kernfs_find_ns
validation run: crashed=true
testing program (duration=1m30.710357418s, {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-mount-openat-write-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='27', 0x2) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./dev\x00', &(0x7f0000000080)='devtmpfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r1, 0xc138fd03, &(0x7f0000000100)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")

program crashed: general protection fault in kernfs_find_ns
validation run: crashed=true
reproducing took 46m58.863263486s
repro crashed as (corrupted=false):
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 883 Comm: syz.0.159 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
RIP: 0010:strlen+0x29/0x70 lib/string.c:568
Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00
RSP: 0018:ffffc9000263f9a8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: ffff888118136400 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000263f9c8 R08: ffff888100059b77 R09: 1ffff1102000b36e
R10: dffffc0000000000 R11: ffffed102000b36f R12: ffff8881069a5c30
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffffffffffff
FS:  00007f8f2a28a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd149da2dac CR3: 0000000117231000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kernfs_name_hash fs/kernfs/dir.c:309 [inline]
 kernfs_find_ns+0x95/0x4b0 fs/kernfs/dir.c:892
 kernfs_remove_by_name_ns+0x89/0x160 fs/kernfs/dir.c:1595
 kernfs_remove_by_name include/linux/kernfs.h:623 [inline]
 sysfs_remove_link+0x50/0x60 fs/sysfs/symlink.c:152
 del_gendisk+0x84b/0xa10 block/genhd.c:951
 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: 0033:0x7f8f2a42ab19
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:00007f8f2a28a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8f2a6b0fa0 RCX: 00007f8f2a42ab19
RDX: 0000200000000100 RSI: 00000000c138fd03 RDI: 0000000000000004
RBP: 00007f8f2a4c2b70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8f2a6b1038 R14: 00007f8f2a6b0fa0 R15: 00007ffc0711a458
Modules linked in:
---[ end trace 9679ecd67b944777 ]---
RIP: 0010:strlen+0x29/0x70 lib/string.c:568
Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00
RSP: 0018:ffffc9000263f9a8 EFLAGS: 00010246

RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: ffff888118136400 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000263f9c8 R08: ffff888100059b77 R09: 1ffff1102000b36e
R10: dffffc0000000000 R11: ffffed102000b36f R12: ffff8881069a5c30
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffffffffffff
FS:  00007f8f2a28a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1c82570ff8 CR3: 0000000117231000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 55 48             	add    %dl,0x48(%rbp)
   3:	89 e5                	mov    %esp,%ebp
   5:	41 57                	push   %r15
   7:	41 56                	push   %r14
   9:	41 54                	push   %r12
   b:	53                   	push   %rbx
   c:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
  13:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
  1a:	fc ff df
  1d:	48 89 fb             	mov    %rdi,%rbx
  20:	49 89 c7             	mov    %rax,%r15
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	75 11                	jne    0x44
  33:	48 ff c3             	inc    %rbx
  36:	49 8d 47 01          	lea    0x1(%r15),%rax
  3a:	42 80 7c 3f 01 00    	cmpb   $0x0,0x1(%rdi,%r15,1)

final repro crashed as (corrupted=false):
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 883 Comm: syz.0.159 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
RIP: 0010:strlen+0x29/0x70 lib/string.c:568
Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00
RSP: 0018:ffffc9000263f9a8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: ffff888118136400 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000263f9c8 R08: ffff888100059b77 R09: 1ffff1102000b36e
R10: dffffc0000000000 R11: ffffed102000b36f R12: ffff8881069a5c30
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffffffffffff
FS:  00007f8f2a28a6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd149da2dac CR3: 0000000117231000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kernfs_name_hash fs/kernfs/dir.c:309 [inline]
 kernfs_find_ns+0x95/0x4b0 fs/kernfs/dir.c:892
 kernfs_remove_by_name_ns+0x89/0x160 fs/kernfs/dir.c:1595
 kernfs_remove_by_name include/linux/kernfs.h:623 [inline]
 sysfs_remove_link+0x50/0x60 fs/sysfs/symlink.c:152
 del_gendisk+0x84b/0xa10 block/genhd.c:951
 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: 0033:0x7f8f2a42ab19
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:00007f8f2a28a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8f2a6b0fa0 RCX: 00007f8f2a42ab19
RDX: 0000200000000100 RSI: 00000000c138fd03 RDI: 0000000000000004
RBP: 00007f8f2a4c2b70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8f2a6b1038 R14: 00007f8f2a6b0fa0 R15: 00007ffc0711a458
Modules linked in:
---[ end trace 9679ecd67b944777 ]---
RIP: 0010:strlen+0x29/0x70 lib/string.c:568
Code: 00 55 48 89 e5 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00
RSP: 0018:ffffc9000263f9a8 EFLAGS: 00010246

RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: ffff888118136400 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000263f9c8 R08: ffff888100059b77 R09: 1ffff1102000b36e
R10: dffffc0000000000 R11: ffffed102000b36f R12: ffff8881069a5c30
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffffffffffff
FS:  00007f8f2a28a6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1c82570ff8 CR3: 0000000117231000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 55 48             	add    %dl,0x48(%rbp)
   3:	89 e5                	mov    %esp,%ebp
   5:	41 57                	push   %r15
   7:	41 56                	push   %r14
   9:	41 54                	push   %r12
   b:	53                   	push   %rbx
   c:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
  13:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
  1a:	fc ff df
  1d:	48 89 fb             	mov    %rdi,%rbx
  20:	49 89 c7             	mov    %rax,%r15
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	75 11                	jne    0x44
  33:	48 ff c3             	inc    %rbx
  36:	49 8d 47 01          	lea    0x1(%r15),%rax
  3a:	42 80 7c 3f 01 00    	cmpb   $0x0,0x1(%rdi,%r15,1)