Use After Free Vulnerability in Linux Kernel Network Scheduler

CVE-2022-49921

What is CVE-2022-49921?

A use after free vulnerability exists in the Linux kernel's network scheduler due to improper management of socket buffers (skb) during the enqueueing process. Specifically, after a socket buffer is passed to the qdisc_enqueue, it should not be accessed again, as this can lead to memory corruption and potential system instability. This flaw has been addressed in recent kernel updates, emphasizing the importance of timely patches and updates to maintain system security.

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