CVE-2026-45947 (GCVE-0-2026-45947)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:18 – Updated: 2026-05-27 12:18
VLAI
Title
drm/amdgpu: Fix memory leak in amdgpu_acpi_enumerate_xcc()
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix memory leak in amdgpu_acpi_enumerate_xcc() In amdgpu_acpi_enumerate_xcc(), if amdgpu_acpi_dev_init() returns -ENOMEM, the function returns directly without releasing the allocated xcc_info, resulting in a memory leak. Fix this by ensuring that xcc_info is properly freed in the error paths. Compile tested only. Issue found using a prototype static analysis tool and code review.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4d5275ab0b18d17697392aafd93e206e6b9de647 , < e87c73a80a12d337cf5f493c0956f6c2c9eafd80 (git)
Affected: 4d5275ab0b18d17697392aafd93e206e6b9de647 , < 18a7bbd11f17a7cd4c42fd5955d3675d68c692df (git)
Affected: 4d5275ab0b18d17697392aafd93e206e6b9de647 , < d1370ef2ecf7d4df25e3e1e430cd191b1e7f8596 (git)
Affected: 4d5275ab0b18d17697392aafd93e206e6b9de647 , < 7e4b612fe7a960d610c20260c9ee220bddd1b215 (git)
Affected: 4d5275ab0b18d17697392aafd93e206e6b9de647 , < c9be63d565789b56ca7b0197e2cb78a3671f95a8 (git)
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Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.14 , ≤ 6.18.* (semver)
Unaffected: 6.19.4 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c"
          ],
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          ],
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          "vendor": "Linux",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix memory leak in amdgpu_acpi_enumerate_xcc()\n\nIn amdgpu_acpi_enumerate_xcc(), if amdgpu_acpi_dev_init() returns -ENOMEM,\nthe function returns directly without releasing the allocated xcc_info,\nresulting in a memory leak.\n\nFix this by ensuring that xcc_info is properly freed in the error paths.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:18:04.117Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/e87c73a80a12d337cf5f493c0956f6c2c9eafd80"
        },
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          "url": "https://git.kernel.org/stable/c/18a7bbd11f17a7cd4c42fd5955d3675d68c692df"
        },
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        {
          "url": "https://git.kernel.org/stable/c/c9be63d565789b56ca7b0197e2cb78a3671f95a8"
        }
      ],
      "title": "drm/amdgpu: Fix memory leak in amdgpu_acpi_enumerate_xcc()",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45947",
    "datePublished": "2026-05-27T12:18:04.117Z",
    "dateReserved": "2026-05-13T15:03:33.088Z",
    "dateUpdated": "2026-05-27T12:18:04.117Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
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      "date": "2026-05-29",
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    },
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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