How OpenBSD and Linux Mitigate Security Bugs
The talk will focus on two similar solutions implemented in Linux and OpenBSD kernels, designed to prevent a program from calling syscalls they should not call to improve security of software.
In both kernels (Linux and OpenBSD), unwanted syscalls can be blocked and the offending program terminated, but there are some differences between Linux and OpenBSD’s solution of the problem.
During my talk, I will analyze the differences between two similar techniques that are present in Linux and OpenBSD kernels that are used to mitigate security bugs (that could be used to attack software and escalate privileges on a machine).
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