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Vulnerability DatabaseCVE-2022-50378
CVE-2022-50378:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2022-50378 is a use-after-free vulnerability discovered in the Linux kernel's DRM (Direct Rendering Manager) Meson driver. The issue specifically affects the driver deinit sequence and was identified when unloading the driver triggered a KASAN (Kernel Address Sanitizer) warning (NVD).
Technical details
The vulnerability manifests as a use-after-free bug in the _listdelentryvalid function during the driver's deinitialization sequence. The issue was detected through KASAN, which reported a read of size 8 at a specific memory address when executing the rmmod command. The bug occurs in the context of the DRM subsystem's atomic object finalization process (NVD).
Impact
When exploited, this vulnerability could lead to memory corruption in the kernel space, potentially causing system instability or crashes. The issue specifically affects systems using the Meson DRM driver (NVD).
Mitigation and workarounds
The vulnerability has been resolved by reordering the driver deinitialization sequence in the Meson DRM driver. The fix was implemented through patches in the Linux kernel (NVD).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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