{"id":"CVE-2026-15466","state":"PUBLISHED","title":"GPU DDK - Write UAF due to a race condition caused by insufficient locking in PVRSRVRGXCloseHWPerfClientStreamKM()","description":"Software installed and run as a non-privileged user may conduct improper GPU system calls to cause race condition in hardware performance counters buffer’s 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.","publishedAt":"2026-10-30T01:23:24.460Z","updatedAt":"2026-10-30T01:53:35.071Z","severity":null,"assigner":"imaginationtech","products":["Imagination Technologies Graphics DDK"],"affected":[{"vendor":"Imagination Technologies","product":"Graphics DDK","defaultStatus":"unknown","versions":[{"version":"1.18 RTM2","status":"unaffected","versionType":"custom"},{"version":"23.2 RTM2","status":"unaffected","versionType":"custom"},{"version":"24.2 RTM2","status":"affected","versionType":"custom"},{"version":"25.1 RTM2","status":"affected","lessThanOrEqual":"25.3 RTM","versionType":"custom"},{"version":"26.1 RTM2","status":"affected","versionType":"custom"},{"version":"26.2 RTM","status":"unaffected","versionType":"custom"}],"platforms":["Linux","Android"]}],"references":["https://www.imaginationtech.com/gpu-driver-vulnerabilities/"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-30T02:04:06.247Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/15xxx/CVE-2026-15466.json","commit":"e570e7f53c60ba84bcd55fd3cb9f1059a18507f5","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-15466","state":"PUBLISHED","datePublished":"2026-10-30T01:23:24.460Z","dateUpdated":"2026-10-30T01:53:35.071Z","assignerShortName":"imaginationtech","assignerOrgId":"367425dc-4d06-4041-9650-c2dc6aaa27ce","dateReserved":"2026-07-10T21:04:03.553Z"},"containers":{"cna":{"title":"GPU DDK - Write UAF due to a race condition caused by insufficient locking in PVRSRVRGXCloseHWPerfClientStreamKM()","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’s 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."}],"affected":[{"vendor":"Imagination Technologies","product":"Graphics DDK","defaultStatus":"unknown","versions":[{"version":"1.18 RTM2","status":"unaffected","versionType":"custom"},{"version":"23.2 RTM2","status":"unaffected","versionType":"custom"},{"version":"24.2 RTM2","status":"affected","versionType":"custom"},{"version":"25.1 RTM2","status":"affected","lessThanOrEqual":"25.3 RTM","versionType":"custom"},{"version":"26.1 RTM2","status":"affected","versionType":"custom"},{"version":"26.2 RTM","status":"unaffected","versionType":"custom"}],"platforms":["Linux","Android"]}],"references":[{"url":"https://www.imaginationtech.com/gpu-driver-vulnerabilities/"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","lang":"en","description":"CWE-416: Use After Free","type":"CWE"}]}],"providerMetadata":{"shortName":"imaginationtech","orgId":"367425dc-4d06-4041-9650-c2dc6aaa27ce","dateUpdated":"2026-10-30T01:53:35.071Z"},"impacts":[{"capecId":"CAPEC-26","descriptions":[{"lang":"en","value":"CAPEC-26: Leveraging Race Conditions"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.4"}}}}}