Extracting prog: 1m12.724590174s
Minimizing prog: 10m44.20248489s
Simplifying prog options: 0s
Extracting C: 26.534013429s
Simplifying C: 5m54.12738194s
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:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program crashed: general protection fault in vsscanf
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
program did not crash
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program did not crash
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program did not crash
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program did not crash
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$ptmx
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program did not crash
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program did not crash
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program did not crash
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program did not crash
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program did not crash
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program did not crash
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, 0x0, 0x0) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program did not crash
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140), 0x0) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program did not crash
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
openat$ptmx(0xffffffffffffff9c, 0x0, 0x100, 0x0)
program did not crash
extracting C reproducer
testing compiled C program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-openat$ptmx
program crashed: general protection fault in vsscanf
simplifying C reproducer
testing compiled C program (duration=36.106483518s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat$ptmx
program did not crash
testing compiled C program (duration=36.106483518s, {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}}): mkdirat-mount-openat-write-openat$ptmx
program did not crash
testing compiled C program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat$ptmx
program did not crash
testing compiled C program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): mkdirat-mount-openat-write-openat$ptmx
program crashed: general protection fault in vsscanf
testing compiled C program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat$ptmx
program crashed: general protection fault in vsscanf
testing compiled C program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): mkdirat-mount-openat-write-openat$ptmx
program crashed: general protection fault in vsscanf
testing compiled C program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat$ptmx
program crashed: general protection fault in vsscanf
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): mkdirat-mount-openat-write-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program crashed: general protection fault in vsscanf
validation run: crashed=true
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): mkdirat-mount-openat-write-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program crashed: general protection fault in vsscanf
validation run: crashed=true
testing program (duration=36.106483518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): mkdirat-mount-openat-write-openat$ptmx
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./debug/split_huge_pages\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='0,0x0,0x0,0,0\x00', 0x10) (async)
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x100, 0x0)
program crashed: general protection fault in vsscanf
validation run: crashed=true
reproducing took 21m5.064963895s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 403 Comm: syz.0.21 Not tainted syzkaller #0 28bb5670a1b4a83370a1b0f1e6655e31af14d592
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:vsscanf+0x18c/0x24b0 lib/vsprintf.c:3444
Code: 48 c7 c6 70 bf e3 87 e8 a2 c2 e5 fb 41 83 fe 25 74 4d 45 85 f6 0f 84 a4 21 00 00 48 ff c3 48 89 5c 24 58 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 8e 1b 00 00 41 0f b6 1f 45 0f b6 f6 44
RSP: 0018:ffffc90001a3f5a0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffff86364c21 RCX: 0000000000000001
RDX: ffffffff85a1b41e RSI: ffffffff87e3bf70 RDI: 0000000000000030
RBP: ffffc90001a3f6b0 R08: ffff8881157eb900 R09: 0000000000000002
R10: 0000000000000025 R11: 0000000000000000 R12: ffffffff86364c20
R13: dffffc0000000000 R14: 0000000000000030 R15: 0000000000000000
FS: 00007f11b3f456c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f11b3f24d58 CR3: 00000001178e2000 CR4: 00000000003526b0
Call Trace:
sscanf+0xe3/0x150 lib/vsprintf.c:3700
split_huge_pages_write+0x3c7/0x1220 mm/huge_memory.c:4139
full_proxy_write+0x125/0x1e0 fs/debugfs/file.c:328
vfs_write+0x3c1/0xfd0 fs/read_write.c:682
ksys_write+0x145/0x260 fs/read_write.c:737
__do_sys_write fs/read_write.c:749 [inline]
__se_sys_write fs/read_write.c:746 [inline]
__x64_sys_write+0x7f/0x90 fs/read_write.c:746
x64_sys_call+0x271c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:2
do_syscall_x64 arch/x86/entry/common.c:47 [inline]
do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f11b2f9e159
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:00007f11b3f45028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f11b3225fa0 RCX: 00007f11b2f9e159
RDX: 0000000000000010 RSI: 0000200000000140 RDI: 0000000000000003
RBP: 00007f11b3035024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f11b3226038 R14: 00007f11b3225fa0 R15: 00007ffda42ebd18
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:vsscanf+0x18c/0x24b0 lib/vsprintf.c:3444
Code: 48 c7 c6 70 bf e3 87 e8 a2 c2 e5 fb 41 83 fe 25 74 4d 45 85 f6 0f 84 a4 21 00 00 48 ff c3 48 89 5c 24 58 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 8e 1b 00 00 41 0f b6 1f 45 0f b6 f6 44
RSP: 0018:ffffc90001a3f5a0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffff86364c21 RCX: 0000000000000001
RDX: ffffffff85a1b41e RSI: ffffffff87e3bf70 RDI: 0000000000000030
RBP: ffffc90001a3f6b0 R08: ffff8881157eb900 R09: 0000000000000002
R10: 0000000000000025 R11: 0000000000000000 R12: ffffffff86364c20
R13: dffffc0000000000 R14: 0000000000000030 R15: 0000000000000000
FS: 00007f11b3f456c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc7068b4d58 CR3: 00000001178e2000 CR4: 00000000003526b0
----------------
Code disassembly (best guess):
0: 48 c7 c6 70 bf e3 87 mov $0xffffffff87e3bf70,%rsi
7: e8 a2 c2 e5 fb call 0xfbe5c2ae
c: 41 83 fe 25 cmp $0x25,%r14d
10: 74 4d je 0x5f
12: 45 85 f6 test %r14d,%r14d
15: 0f 84 a4 21 00 00 je 0x21bf
1b: 48 ff c3 inc %rbx
1e: 48 89 5c 24 58 mov %rbx,0x58(%rsp)
23: 4c 89 f8 mov %r15,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 0f 85 8e 1b 00 00 jne 0x1bc5
37: 41 0f b6 1f movzbl (%r15),%ebx
3b: 45 0f b6 f6 movzbl %r14b,%r14d
3f: 44 rex.R
final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 403 Comm: syz.0.21 Not tainted syzkaller #0 28bb5670a1b4a83370a1b0f1e6655e31af14d592
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:vsscanf+0x18c/0x24b0 lib/vsprintf.c:3444
Code: 48 c7 c6 70 bf e3 87 e8 a2 c2 e5 fb 41 83 fe 25 74 4d 45 85 f6 0f 84 a4 21 00 00 48 ff c3 48 89 5c 24 58 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 8e 1b 00 00 41 0f b6 1f 45 0f b6 f6 44
RSP: 0018:ffffc90001a3f5a0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffff86364c21 RCX: 0000000000000001
RDX: ffffffff85a1b41e RSI: ffffffff87e3bf70 RDI: 0000000000000030
RBP: ffffc90001a3f6b0 R08: ffff8881157eb900 R09: 0000000000000002
R10: 0000000000000025 R11: 0000000000000000 R12: ffffffff86364c20
R13: dffffc0000000000 R14: 0000000000000030 R15: 0000000000000000
FS: 00007f11b3f456c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f11b3f24d58 CR3: 00000001178e2000 CR4: 00000000003526b0
Call Trace:
sscanf+0xe3/0x150 lib/vsprintf.c:3700
split_huge_pages_write+0x3c7/0x1220 mm/huge_memory.c:4139
full_proxy_write+0x125/0x1e0 fs/debugfs/file.c:328
vfs_write+0x3c1/0xfd0 fs/read_write.c:682
ksys_write+0x145/0x260 fs/read_write.c:737
__do_sys_write fs/read_write.c:749 [inline]
__se_sys_write fs/read_write.c:746 [inline]
__x64_sys_write+0x7f/0x90 fs/read_write.c:746
x64_sys_call+0x271c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:2
do_syscall_x64 arch/x86/entry/common.c:47 [inline]
do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f11b2f9e159
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:00007f11b3f45028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f11b3225fa0 RCX: 00007f11b2f9e159
RDX: 0000000000000010 RSI: 0000200000000140 RDI: 0000000000000003
RBP: 00007f11b3035024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f11b3226038 R14: 00007f11b3225fa0 R15: 00007ffda42ebd18
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:vsscanf+0x18c/0x24b0 lib/vsprintf.c:3444
Code: 48 c7 c6 70 bf e3 87 e8 a2 c2 e5 fb 41 83 fe 25 74 4d 45 85 f6 0f 84 a4 21 00 00 48 ff c3 48 89 5c 24 58 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 8e 1b 00 00 41 0f b6 1f 45 0f b6 f6 44
RSP: 0018:ffffc90001a3f5a0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffff86364c21 RCX: 0000000000000001
RDX: ffffffff85a1b41e RSI: ffffffff87e3bf70 RDI: 0000000000000030
RBP: ffffc90001a3f6b0 R08: ffff8881157eb900 R09: 0000000000000002
R10: 0000000000000025 R11: 0000000000000000 R12: ffffffff86364c20
R13: dffffc0000000000 R14: 0000000000000030 R15: 0000000000000000
FS: 00007f11b3f456c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc7068b4d58 CR3: 00000001178e2000 CR4: 00000000003526b0
----------------
Code disassembly (best guess):
0: 48 c7 c6 70 bf e3 87 mov $0xffffffff87e3bf70,%rsi
7: e8 a2 c2 e5 fb call 0xfbe5c2ae
c: 41 83 fe 25 cmp $0x25,%r14d
10: 74 4d je 0x5f
12: 45 85 f6 test %r14d,%r14d
15: 0f 84 a4 21 00 00 je 0x21bf
1b: 48 ff c3 inc %rbx
1e: 48 89 5c 24 58 mov %rbx,0x58(%rsp)
23: 4c 89 f8 mov %r15,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 0f 85 8e 1b 00 00 jne 0x1bc5
37: 41 0f b6 1f movzbl (%r15),%ebx
3b: 45 0f b6 f6 movzbl %r14b,%r14d
3f: 44 rex.R