{"id":"CVE-2026-9034","state":"PUBLISHED","title":"Mali GPU Userspace Driver allows access to already freed memory","description":"Use After Free vulnerability in Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a non-privileged user process to perform valid GPU processing operations, including via WebGL or WebGPU, to access already freed memory.\n\n\n\nThis issue affects Bifrost GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p3; Valhall GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0.","publishedAt":"2026-09-08T14:20:53.547Z","updatedAt":"2026-09-10T18:03:49.974Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"Arm","products":["Arm Ltd Bifrost GPU Userspace Driver","Arm Ltd Valhall GPU Userspace Driver","Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver"],"affected":[{"vendor":"Arm Ltd","product":"Bifrost GPU Userspace Driver","defaultStatus":"unaffected","versions":[{"version":"r42p0","status":"affected","lessThanOrEqual":"r49p5","versionType":"patch"},{"version":"r50p0","status":"affected","lessThanOrEqual":"r51p0","versionType":"patch"},{"version":"r54p1","status":"affected","lessThanOrEqual":"r54p3","versionType":"patch"}]},{"vendor":"Arm Ltd","product":"Valhall GPU Userspace Driver","defaultStatus":"unaffected","versions":[{"version":"r42p0","status":"affected","lessThanOrEqual":"r49p5","versionType":"patch"},{"version":"r50p0","status":"affected","lessThanOrEqual":"r54p3","versionType":"patch"},{"version":"r55p0","status":"affected","versionType":"patch"},{"version":"r56p0","status":"unaffected","versionType":"patch"}]},{"vendor":"Arm Ltd","product":"Arm 5th Gen GPU Architecture Userspace Driver","defaultStatus":"unaffected","versions":[{"version":"r42p0","status":"affected","lessThanOrEqual":"r49p5","versionType":"patch"},{"version":"r50p0","status":"affected","lessThanOrEqual":"r54p3","versionType":"patch"},{"version":"r55p0","status":"affected","versionType":"patch"},{"version":"r56p0","status":"unaffected","versionType":"patch"}]}],"references":["https://support.arm.com/documentation/111552/1-0/?lang=en"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-29T20:13:52.441Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/9xxx/CVE-2026-9034.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-9034","state":"PUBLISHED","datePublished":"2026-09-08T14:20:53.547Z","dateUpdated":"2026-09-10T18:03:49.974Z","assignerShortName":"Arm","assignerOrgId":"56a131ea-b967-4a0d-a41e-5f3549952846","dateReserved":"2026-05-19T16:30:46.525Z"},"containers":{"cna":{"title":"Mali GPU Userspace Driver allows access to already freed memory","descriptions":[{"lang":"en","value":"Use After Free vulnerability in Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a non-privileged user process to perform valid GPU processing operations, including via WebGL or WebGPU, to access already freed memory.\n\n\n\nThis issue affects Bifrost GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p3; Valhall GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0."}],"affected":[{"vendor":"Arm Ltd","product":"Bifrost GPU Userspace Driver","defaultStatus":"unaffected","versions":[{"version":"r42p0","status":"affected","lessThanOrEqual":"r49p5","versionType":"patch"},{"version":"r50p0","status":"affected","lessThanOrEqual":"r51p0","versionType":"patch"},{"version":"r54p1","status":"affected","lessThanOrEqual":"r54p3","versionType":"patch"}]},{"vendor":"Arm Ltd","product":"Valhall GPU Userspace Driver","defaultStatus":"unaffected","versions":[{"version":"r42p0","status":"affected","lessThanOrEqual":"r49p5","versionType":"patch"},{"version":"r50p0","status":"affected","lessThanOrEqual":"r54p3","versionType":"patch"},{"version":"r55p0","status":"affected","versionType":"patch"},{"version":"r56p0","status":"unaffected","versionType":"patch"}]},{"vendor":"Arm Ltd","product":"Arm 5th Gen GPU Architecture Userspace Driver","defaultStatus":"unaffected","versions":[{"version":"r42p0","status":"affected","lessThanOrEqual":"r49p5","versionType":"patch"},{"version":"r50p0","status":"affected","lessThanOrEqual":"r54p3","versionType":"patch"},{"version":"r55p0","status":"affected","versionType":"patch"},{"version":"r56p0","status":"unaffected","versionType":"patch"}]}],"references":[{"url":"https://support.arm.com/documentation/111552/1-0/?lang=en"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","lang":"en","description":"CWE-416 Use After Free","type":"CWE"}]}],"providerMetadata":{"shortName":"Arm","orgId":"56a131ea-b967-4a0d-a41e-5f3549952846","dateUpdated":"2026-09-08T14:20:53.547Z"},"solutions":[{"lang":"en","value":"This issue has been fixed in the following versions: Valhall GPU Userspace Driver: r56p0; Arm 5th Gen GPU Architecture Userspace Driver: r56p0. Arm partners are recommended to upgrade to the latest applicable version as soon as possible.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>This issue has been fixed in the following versions: Valhall GPU Userspace Driver: r56p0; Arm 5th Gen GPU Architecture Userspace Driver: r56p0. Arm partners are recommended to upgrade to the latest applicable version as soon as possible.</p>"}]}],"credits":[{"lang":"en","value":"Florian Schweitzer (aff. Certitude Consulting GmbH)","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.8,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T18:02:25.753459Z","id":"CVE-2026-9034","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-10T18:03:49.974Z"}}]}}}