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Vulnerability DatabaseCVE-2022-50042
CVE-2022-50042:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2022-50042 affects the Linux kernel and involves a memory leak vulnerability in the netlink policy dumping functionality. The issue occurs in the net: genl subsystem when constructing an array of policies fails during the recording of non-first policy entries (NVD). The vulnerability was disclosed on June 18, 2025.
Technical details
The vulnerability specifically relates to an error path memory leak in policy dumping within the netlinkpolicydumpaddpolicy() function. When construction of the array of policies fails while recording non-first policy entries, the system needs to unwind properly. The current implementation gives up on error without recording the allocated pointer in the pstate pointer, leading to memory leaks (NVD, Wiz).
Impact
The vulnerability could result in memory leaks in the Linux kernel, potentially leading to resource exhaustion over time if repeatedly triggered (NVD).
Mitigation and workarounds
The vulnerability has been addressed through patches in various Linux kernel versions. Multiple Linux distributions have released updates to address this issue (Wiz).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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