{"id":"CVE-2026-9040","state":"PUBLISHED","title":"Mali GPU Kernel Driver allows denial of service or disclosure of sensitive information","description":"A race condition vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU memory processing operations to cause a denial of service or disclose sensitive information.\n\n\n\nThis issue affects Bifrost GPU Kernel Driver: from r12p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r19p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0.","publishedAt":"2026-09-08T14:21:22.296Z","updatedAt":"2026-09-10T17:55:34.060Z","severity":{"score":7.7,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","source":"CISA-ADP"},"assigner":"Arm","products":["Arm Ltd Bifrost GPU Kernel Driver","Arm Ltd Valhall GPU Kernel Driver","Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver"],"affected":[{"vendor":"Arm Ltd","product":"Bifrost GPU Kernel Driver","defaultStatus":"unaffected","versions":[{"version":"r12p0","status":"affected","lessThanOrEqual":"r49p5","versionType":"patch"},{"version":"r50p0","status":"affected","lessThanOrEqual":"r51p0","versionType":"patch"},{"version":"r54p1","status":"affected","lessThanOrEqual":"r54p2","versionType":"patch"}]},{"vendor":"Arm Ltd","product":"Valhall GPU Kernel Driver","defaultStatus":"unaffected","versions":[{"version":"r19p0","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 Kernel Driver","defaultStatus":"unaffected","versions":[{"version":"r41p0","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-362"],"ingestedAt":"2026-10-29T20:13:52.441Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/9xxx/CVE-2026-9040.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-9040","state":"PUBLISHED","datePublished":"2026-09-08T14:21:22.296Z","dateUpdated":"2026-09-10T17:55:34.060Z","assignerShortName":"Arm","assignerOrgId":"56a131ea-b967-4a0d-a41e-5f3549952846","dateReserved":"2026-05-19T17:09:31.535Z"},"containers":{"cna":{"title":"Mali GPU Kernel Driver allows denial of service or disclosure of sensitive information","descriptions":[{"lang":"en","value":"A race condition vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU memory processing operations to cause a denial of service or disclose sensitive information.\n\n\n\nThis issue affects Bifrost GPU Kernel Driver: from r12p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r19p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0."}],"affected":[{"vendor":"Arm Ltd","product":"Bifrost GPU Kernel Driver","defaultStatus":"unaffected","versions":[{"version":"r12p0","status":"affected","lessThanOrEqual":"r49p5","versionType":"patch"},{"version":"r50p0","status":"affected","lessThanOrEqual":"r51p0","versionType":"patch"},{"version":"r54p1","status":"affected","lessThanOrEqual":"r54p2","versionType":"patch"}]},{"vendor":"Arm Ltd","product":"Valhall GPU Kernel Driver","defaultStatus":"unaffected","versions":[{"version":"r19p0","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 Kernel Driver","defaultStatus":"unaffected","versions":[{"version":"r41p0","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-362","lang":"en","description":"CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","type":"CWE"}]}],"providerMetadata":{"shortName":"Arm","orgId":"56a131ea-b967-4a0d-a41e-5f3549952846","dateUpdated":"2026-09-08T14:21:22.296Z"},"solutions":[{"lang":"en","value":"This issue has been fixed in the following versions: Valhall GPU Kernel Driver: r56p0; Arm 5th Gen GPU Architecture Kernel 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 Kernel Driver: r56p0; Arm 5th Gen GPU Architecture Kernel Driver: r56p0. Arm partners are recommended to upgrade to the latest applicable version as soon as possible.</p>"}]}],"credits":[{"lang":"en","value":"Pumpkin from DEVCORE Research Team","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":7.7,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T17:55:31.134691Z","id":"CVE-2026-9040","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-10T17:55:34.060Z"}}]}}}