{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-15466", "assignerOrgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce", "state": "PUBLISHED", "assignerShortName": "imaginationtech", "dateReserved": "2026-07-10T21:04:03.553Z", "datePublished": "2026-10-30T01:23:24.460Z", "dateUpdated": "2026-10-30T01:53:35.071Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce", "shortName": "imaginationtech", "dateUpdated": "2026-10-30T01:53:35.071Z"}, "title": "GPU DDK - Write UAF due to a race condition caused by insufficient locking in PVRSRVRGXCloseHWPerfClientStreamKM()", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-416", "description": "CWE-416: Use After Free", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-26", "descriptions": [{"lang": "en", "value": "CAPEC-26: Leveraging Race Conditions"}]}], "affected": [{"vendor": "Imagination Technologies", "product": "Graphics DDK", "platforms": ["Linux", "Android"], "versions": [{"status": "unaffected", "version": "1.18 RTM2", "versionType": "custom"}, {"status": "unaffected", "version": "23.2 RTM2", "versionType": "custom"}, {"status": "affected", "version": "24.2 RTM2", "versionType": "custom"}, {"status": "affected", "version": "25.1 RTM2", "lessThanOrEqual": "25.3 RTM", "versionType": "custom"}, {"status": "affected", "version": "26.1 RTM2", "versionType": "custom"}, {"status": "unaffected", "version": "26.2 RTM", "versionType": "custom"}], "defaultStatus": "unknown"}], "descriptions": [{"lang": "en", "value": "Software installed and run as a non-privileged user may conduct improper GPU system calls to cause race condition in hardware performance counters buffer\u2019s destruction path leading to read and/or write UAF.\n\n\n\nThe race condition in the destruction path could lead to reference counter being decremented in non-atomical way allowing other code paths using a freed object to read and/or write kernel heap memory.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Software installed and run as a non-privileged user may conduct improper GPU system calls to cause race condition in hardware performance counters buffer\u2019s destruction path leading to read and/or write UAF.</p><p>The race condition in the destruction path could lead to reference counter being decremented in non-atomical way allowing other code paths using a freed object to read and/or write kernel heap memory.</p>"}]}], "references": [{"url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unknown", "platforms": ["Linux", "Android"], "product": "Graphics DDK", "vendor": "Imagination Technologies", "versions": [{"status": "unaffected", "version": "1.18 RTM2", "versionType": "custom"}, {"status": "unaffected", "version": "23.2 RTM2", "versionType": "custom"}, {"status": "affected", "version": "24.2 RTM2", "versionType": "custom"}, {"lessThanOrEqual": "25.3 RTM", "status": "affected", "version": "25.1 RTM2", "versionType": "custom"}, {"status": "affected", "version": "26.1 RTM2", "versionType": "custom"}, {"status": "unaffected", "version": "26.2 RTM", "versionType": "custom"}]}], "source": "367425dc-4d06-4041-9650-c2dc6aaa27ce"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Software installed and run as a non-privileged user may conduct improper GPU system calls to cause race condition in hardware performance counters buffer\u2019s destruction path leading to read and/or write UAF.\n\n\n\nThe race condition in the destruction path could lead to reference counter being decremented in non-atomical way allowing other code paths using a freed object to read and/or write kernel heap memory."}], "id": "CVE-2026-15466", "lastModified": "2026-10-30T02:17:08.980", "metrics": {}, "published": "2026-10-30T02:17:08.980", "references": [{"source": "367425dc-4d06-4041-9650-c2dc6aaa27ce", "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/"}], "sourceIdentifier": "367425dc-4d06-4041-9650-c2dc6aaa27ce", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "367425dc-4d06-4041-9650-c2dc6aaa27ce", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["linux", "android"], "status": "unaffected", "versions": {"scheme": "generic", "value": "1.18 RTM2"}}, {"platform": ["linux", "android"], "status": "unaffected", "versions": {"scheme": "generic", "value": "23.2 RTM2"}}, {"platform": ["linux", "android"], "status": "affected", "versions": {"scheme": "generic", "value": "24.2 RTM2"}}, {"platform": ["linux", "android"], "status": "affected", "versions": {"scheme": "generic", "value": "[25.1 RTM2,25.3 RTM]"}}, {"platform": ["linux", "android"], "status": "affected", "versions": {"scheme": "generic", "value": "26.1 RTM2"}}, {"platform": ["linux", "android"], "status": "unaffected", "versions": {"scheme": "generic", "value": "26.2 RTM"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Graphics DDK", "source": "cna", "vendor": "Imagination Technologies"}, "product": "graphics_ddk", "vendor": "imaginationtech"}], "created": "2026-10-30T03:00:13.015322+00:00", "updated": "2026-10-30T03:45:05.839372+00:00", "vendors": ["imaginationtech", "imaginationtech$PRODUCT$graphics_ddk"]}