diff options
Diffstat (limited to 'afl-system-config')
| -rwxr-xr-x | afl-system-config | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/afl-system-config b/afl-system-config index 7538bc29..366762ef 100755 --- a/afl-system-config +++ b/afl-system-config @@ -1,5 +1,9 @@ #!/bin/sh echo This reconfigures the system to have a better fuzzing performance +if [ '!' "$EUID" = 0 ] && [ '!' `id -u` = 0 ] ; then + echo Error you need to be root to run this + exit 1 +fi sysctl -w kernel.core_pattern=core sysctl -w kernel.randomize_va_space=0 sysctl -w kernel.sched_child_runs_first=1 @@ -7,8 +11,11 @@ sysctl -w kernel.sched_autogroup_enabled=1 sysctl -w kernel.sched_migration_cost_ns=50000000 sysctl -w kernel.sched_latency_ns=250000000 echo never > /sys/kernel/mm/transparent_hugepage/enabled -echo performance | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor > /dev/null +test -e /sys/devices/system/cpu/cpufreq/scaling_governor && echo performance | tee /sys/devices/system/cpu/cpufreq/scaling_governor +test -e /sys/devices/system/cpu/cpufreq/policy0/scaling_governor && echo performance | tee /sys/devices/system/cpu/cpufreq/policy*/scaling_governor +test -e /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor && echo performance | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor test -e /sys/devices/system/cpu/intel_pstate/no_turbo && echo 0 > /sys/devices/system/cpu/intel_pstate/no_turbo +test -e /sys/devices/system/cpu/cpufreq/boost && echo 1 > /sys/devices/system/cpu/cpufreq/boost echo echo It is recommended to boot the kernel with lots of security off - if you are running a machine that is in a secured network - so set this: echo '/etc/default/grub:GRUB_CMDLINE_LINUX_DEFAULT="ibpb=off ibrs=off kpti=off l1tf=off mds=off mitigations=off no_stf_barrier noibpb noibrs nopcid nopti nospec_store_bypass_disable nospectre_v1 nospectre_v2 pcid=off pti=off spec_store_bypass_disable=off spectre_v2=off stf_barrier=off"' |