UnratedRed Hat & Ubuntu Linux
Mesa vulnerability
USN-8427-1 Published Jun 15, 2026
CVE-2026-40393
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
It was discovered that Mesa did not properly validate memory allocation sizes in WebGPU under certain circumstances. An attacker could use this issue to cause Mesa to crash, resulting in a denial of service, or possibly execute arbitrary code. Affected Ubuntu releases: 25.10, 24.04, 22.04. CVEs: CVE-2026-40393.
Affected versions
- Ubuntu 25.10
- Ubuntu 24.04
- Ubuntu 22.04
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Apply available updates: `sudo apt update && sudo apt upgrade` (a standard system update installs the fix).
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
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