Memory Management Vulnerability in Linux Kernel Affecting Various Distros

CVE-2023-53353

What is CVE-2023-53353?

A memory management vulnerability in the Linux kernel arises from improper handling of the memory manager IDR during file descriptor release. This issue can lead to memory leaks, as the IDR is destroyed while user contexts and memory buffers may still be active. To mitigate this risk, the IDR destruction process has been adjusted, ensuring it occurs only after all user contexts are released and memory buffers are no longer in use. This change enhances the stability and reliability of memory management within the kernel.

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