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Vulnerability DatabaseCVE-2022-50181
CVE-2022-50181:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2022-50181 is a vulnerability discovered in the Linux kernel's virtio-gpu component that involves a missing NULL pointer check. The issue was identified in the virtiogpucmdgetcapset() function where 'cacheent' could be set to NULL, leading to a potential NULL pointer dereference when accessing cacheent->caps_cache (Wiz Database).
Technical details
The vulnerability exists in the virtio-gpu driver of the Linux kernel where a missing NULL pointer check in the virtiogpucmdgetcapset() function can lead to a NULL pointer dereference. The issue occurs when 'cacheent' is set to NULL and later accessed through ptr = cacheent->caps_cache without proper validation (NVD).
Impact
If exploited, this vulnerability could lead to a system crash through NULL pointer dereference, potentially causing a denial of service condition in affected systems (Wiz Database).
Mitigation and workarounds
The vulnerability has been fixed in multiple Linux distributions. Debian has released fixes in versions bullseye 5.10.237-1, bookworm 6.1.140-1, and trixie 6.12.31-1. Users are advised to upgrade to the patched versions (Debian Tracker).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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