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Enable panic_on_warn=1

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Raja Grewal 2024-08-29 01:57:32 +10:00
parent 9c918eb431
commit 3101035a3f
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2 changed files with 9 additions and 8 deletions
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7
README.md
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@ -43,9 +43,10 @@ Kernel space:
- Restrict kernel profiling and the performance events system to `CAP_PERFMON`. - Restrict kernel profiling and the performance events system to `CAP_PERFMON`.
- Force the kernel to panic on "oopses" that can potentially indicate and thwart - Force the kernel to panic on both "oopses", which can potentially indicate and thwart
certain kernel exploitation attempts. Optional - Force immediate reboot on the certain kernel exploitation attempts, and also kernel warnings in the `WARN()` path.
occurrence of a kernel panic and also set panic limit to one (when using Linux kernel >= 6.2). Optional - Force immediate reboot on the occurrence of a single kernel panic and also
(when using Linux kernel >= 6.2) limit the number of allowed panics to one.
- Disable the use of legacy TIOCSTI operations which can be used to inject keypresses. - Disable the use of legacy TIOCSTI operations which can be used to inject keypresses.

10
usr/libexec/security-misc/panic-on-oops
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@ -12,12 +12,12 @@ if [ -f /usr/libexec/helper-scripts/pre.bsh ]; then
source /usr/libexec/helper-scripts/pre.bsh source /usr/libexec/helper-scripts/pre.bsh
fi fi
## Makes the kernel panic on oopses. This prevents the kernel ## Makes the kernel panic on oopses and warnings. This prevents the
## from continuing to run a flawed processes. Many kernel exploits ## kernel from continuing to run a flawed processes. Many kernel
## will also cause an oops which this will make the kernel kill ## exploits will also cause an oops, these settings will make the
## the offending processes. ## kernel kill the offending processes.
#sysctl kernel.panic=-1 #sysctl kernel.panic=-1
sysctl kernel.panic_on_oops=1 sysctl kernel.panic_on_oops=1
#sysctl kernel.panic_on_warn=1 sysctl kernel.panic_on_warn=1
#sysctl kernel.oops_limit=1 #sysctl kernel.oops_limit=1
#sysctl kernel.warn_limit=1 #sysctl kernel.warn_limit=1