Improper Memory Handling in Linux Kernel's TUN Driver by Google

CVE-2024-56372

Summary

A vulnerability has been identified in the Linux kernel's TUN driver, where improper memory handling can lead to crashes and unexpected system behavior. The issue arises from the mishandling of input/output vector (iov) components, resulting in the split buffer mechanism pulling an incorrect data segment which manifests as a malformed socket buffer (skb). This flaw can trigger kernel panics if exploited, disrupting services on affected systems. Comprehensive patches have been released to mitigate this risk, and users are advised to update their systems to the latest kernel versions.

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