Bug 2454815 (CVE-2026-23430)

Summary: CVE-2026-23430 kernel: drm/vmwgfx: Don't overwrite KMS surface dirty tracker
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel, specifically within the `drm/vmwgfx` component. This vulnerability occurs when the kernel incorrectly overwrites the Kernel Mode Setting (KMS) surface dirty tracker. This error leads to a memory leak, which can degrade system performance and potentially cause system instability over an extended period.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-04-03 16:02:15 UTC
In the Linux kernel, the following vulnerability has been resolved:

drm/vmwgfx: Don't overwrite KMS surface dirty tracker

We were overwriting the surface's dirty tracker here causing a memory leak.