Schedguard: Protecting against schedule leaks using linux containers

J Chen, T Kloda, A Bansal, R Tabish… - 2021 IEEE 27th Real …, 2021 - ieeexplore.ieee.org
Real-time systems have recently been shown to be vulnerable to timing inference attacks,
mainly due to their predictable behavioral patterns. Existing solutions such as schedule
randomization lack the ability to protect against such attacks, often limited by the system's
real-time nature. This paper presents “SchedGuard”: a temporal protection framework for
Linux-based hard real-time systems that protects against posterior scheduler side-channel
attacks by preventing untrusted tasks from executing during specific time segments …

SchedGuard++: Protecting against schedule leaks using Linux containers on multi-core processors

J Chen, T Kloda, R Tabish, A Bansal, CY Chen… - ACM Transactions on …, 2023 - dl.acm.org
Timing correctness is crucial in a multi-criticality real-time system, such as an autonomous
driving system. It has been recently shown that these systems can be vulnerable to timing
inference attacks, mainly due to their predictable behavioral patterns. Existing solutions like
schedule randomization cannot protect against such attacks, often limited by the system's
real-time nature. This article presents “SchedGuard++”: a temporal protection framework for
Linux-based real-time systems that protects against posterior schedule-based attacks by …
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