Vulnerability-Lookup

GHSA-54WP-4FGX-PXG4

Vulnerability from github – Published: 2026-07-10 21:32 – Updated: 2026-07-10 21:32

Details

The second virtual mapping references a physical address that has been freed after the first virtual mapping has been freed. This allows the physical memory to be allocated (for example) by another process and read/written to.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-34196"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-10T21:16:54Z",
    "severity": null
  },
  "details": "Software installed and run as a non-privileged user may conduct improper GPU system calls to cause an integer overflow and map two GPU virtual addresses to the same physical address. One of these virutal mappings can be freed along with the physical page, allowing for a read/write UAF via the second mapping\n\n\n\nThe second virtual mapping references a physical address that has been freed after the first virtual mapping has been freed. This allows the physical memory to be allocated (for example) by another process and read/written to.",
  "id": "GHSA-54wp-4fgx-pxg4",
  "modified": "2026-07-10T21:32:34Z",
  "published": "2026-07-10T21:32:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34196"
    },
    {
      "type": "WEB",
      "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-34196 (GCVE-0-2026-34196)

Vulnerability from cvelistv5 – Published: 2026-07-10 20:42 – Updated: 2026-07-10 20:42

Title

GPU DDK - UAF read and/or write of arbitrary physical memory due to integer truncation in PMRDevPhysAddrOSMem

Summary

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause an integer overflow and map two GPU virtual addresses to the same physical address. One of these virutal mappings can be freed along with the physical page, allowing for a read/write UAF via the second mapping The second virtual mapping references a physical address that has been freed after the first virtual mapping has been freed. This allows the physical memory to be allocated (for example) by another process and read/written to.

Severity

No CVSS data available.

CWE

CWE-416 - Use After Free

Assigner

imaginationtech

References

1 reference

URL	Tags
https://www.imaginationtech.com/gpu-driver-vulner…

Impacted products

1 product

Vendor	Product	Version
Imagination Technologies	Graphics DDK	Affected: 1.18 RTM2 (custom) Affected: 23.2 RTM2 (custom) Affected: 24.2 RTM2 (custom) Affected: 25.1 RTM2 , ≤ 25.3 RTM (custom) Affected: 26.1 RTM1 (custom) Unaffected: 26.1 RTM2 (custom)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "platforms": [
            "Linux",
            "Android"
          ],
          "product": "Graphics DDK",
          "vendor": "Imagination Technologies",
          "versions": [
            {
              "status": "affected",
              "version": "1.18 RTM2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "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 RTM1",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "26.1 RTM2",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eSoftware installed and run as a non-privileged user may conduct improper GPU system calls to cause an integer overflow and map two GPU virtual addresses to the same physical address. One of these virutal mappings can be freed along with the physical page, allowing for a read/write UAF via the second mapping\u003c/p\u003e\u003cp\u003eThe second virtual mapping references a physical address that has been freed after the first virtual mapping has been freed. This allows the physical memory to be allocated (for example) by another process and read/written to.\u003c/p\u003e"
            }
          ],
          "value": "Software installed and run as a non-privileged user may conduct improper GPU system calls to cause an integer overflow and map two GPU virtual addresses to the same physical address. One of these virutal mappings can be freed along with the physical page, allowing for a read/write UAF via the second mapping\n\n\n\nThe second virtual mapping references a physical address that has been freed after the first virtual mapping has been freed. This allows the physical memory to be allocated (for example) by another process and read/written to."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-124",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-124: Shared Resource Manipulation"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416: Use After Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-10T20:42:17.526Z",
        "orgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
        "shortName": "imaginationtech"
      },
      "references": [
        {
          "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "GPU DDK - UAF read and/or write of arbitrary physical memory due to integer truncation in PMRDevPhysAddrOSMem",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "367425dc-4d06-4041-9650-c2dc6aaa27ce",
    "assignerShortName": "imaginationtech",
    "cveId": "CVE-2026-34196",
    "datePublished": "2026-07-10T20:42:17.526Z",
    "dateReserved": "2026-03-26T13:47:30.669Z",
    "dateUpdated": "2026-07-10T20:42:17.526Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-54WP-4FGX-PXG4

CVE-2026-34196 (GCVE-0-2026-34196)

Tags

Sightings

Nomenclature