CVE-2026-15466 (GCVE-0-2026-15466)
Vulnerability from cvelistv5
Published
2026-10-30 01:23
Modified
2026-10-30 01:53
Severity ?
CWE
Summary
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. 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.
References
Impacted products
Vendor Product Version
Imagination Technologies Graphics DDK Patch: 1.18 RTM2
Patch: 23.2 RTM2
Version: 24.2 RTM2   <
Version: 25.1 RTM2   <
Version: 26.1 RTM2   <
Patch: 26.2 RTM
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      "affected": [
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              "version": "23.2 RTM2",
              "versionType": "custom"
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              "versionType": "custom"
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            {
              "lessThanOrEqual": "25.3 RTM",
              "status": "affected",
              "version": "25.1 RTM2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "26.1 RTM2",
              "versionType": "custom"
            },
            {
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      "impacts": [
        {
          "capecId": "CAPEC-26",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-26: Leveraging Race Conditions"
            }
          ]
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416: Use After Free",
              "lang": "en",
              "type": "CWE"
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          ]
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      "providerMetadata": {
        "dateUpdated": "2026-10-30T01:53:35.071Z",
        "orgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
        "shortName": "imaginationtech"
      },
      "references": [
        {
          "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "GPU DDK - Write UAF due to a race condition caused by insufficient locking in PVRSRVRGXCloseHWPerfClientStreamKM()",
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    "assignerShortName": "imaginationtech",
    "cveId": "CVE-2026-15466",
    "datePublished": "2026-10-30T01:23:24.460Z",
    "dateReserved": "2026-07-10T21:04:03.553Z",
    "dateUpdated": "2026-10-30T01:53:35.071Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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