CVE-2023-52937
Linux Kernel vulnerability analysis and mitigation

Overview

A memory leak vulnerability was identified in the Linux kernel's Hyper-V balloon driver (CVE-2023-52937). The issue occurs when calling debugfs_lookup() without properly calling dput() on the result, causing memory to leak over time (NVD).

Technical details

The vulnerability exists in the hvballoon component of the Linux kernel. When debugfslookup() is called, the result must have dput() called on it to prevent memory leakage. The fix involves replacing the problematic code with debugfslookupand_remove() which handles all the cleanup logic in a single call (NVD).

Impact

The vulnerability results in a memory leak that gradually consumes system memory over time when the affected component is used (NVD).

Mitigation and workarounds

The issue has been resolved by modifying the code to use debugfslookupandremove() instead of the separate debugfslookup() call. Users should update to patched versions of the Linux kernel (NVD).

Additional resources


SourceThis report was generated using AI

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