Linux Kernel Vulnerabilities in Netfilter Affecting Kernel Mechanisms

CVE-2023-53304

What is CVE-2023-53304?

A vulnerability in the Linux kernel's netfilter component has been identified, compromising the lazy garbage collection process responsible for managing timed-out entries within network sets. Specifically, the issue arises when the insertion process fails to adequately release overlapping intervals, leading to potential memory management anomalies. Additionally, incorrect handling of the 'rbe_prev' pointer could result in elements not being accurately identified for removal during garbage collection, which may affect the stability and integrity of network filtering operations. This can be particularly observed in testing scenarios with enabled kmemleak within the kernel.

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