Vulnerability-Lookup

GHSA-6432-66V6-M255

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33

Details

In the Linux kernel, the following vulnerability has been resolved:

accel/amdxdna: Fix memory leak in amdxdna_ubuf_map

The amdxdna_ubuf_map() function allocates memory for sg and internal sg table structures, but it fails to free them if subsequent operations (sg_alloc_table_from_pages or dma_map_sgtable) fail.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45908"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:05Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Fix memory leak in amdxdna_ubuf_map\n\nThe amdxdna_ubuf_map() function allocates memory for sg and\ninternal sg table structures, but it fails to free them if subsequent\noperations (sg_alloc_table_from_pages or dma_map_sgtable) fail.",
  "id": "GHSA-6432-66v6-m255",
  "modified": "2026-05-27T15:33:15Z",
  "published": "2026-05-27T15:33:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45908"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a68d2c99c859e6e8e36fa4e32749abf6d1fb66a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84dd57fb0359500092f1101409ca32091731490d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9f4366d2ff93b07c2571561c776bd9a708078c3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-45908 (GCVE-0-2026-45908)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:17 – Updated: 2026-05-27 12:17

Title

accel/amdxdna: Fix memory leak in amdxdna_ubuf_map

Summary

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix memory leak in amdxdna_ubuf_map The amdxdna_ubuf_map() function allocates memory for sg and internal sg table structures, but it fails to free them if subsequent operations (sg_alloc_table_from_pages or dma_map_sgtable) fail.

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/5a68d2c99c859e6e8…
https://git.kernel.org/stable/c/f9f4366d2ff93b07c…
https://git.kernel.org/stable/c/84dd57fb035950009…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: bd72d4acda1069579b35123e3cc0b21ec1193a21 , < 5a68d2c99c859e6e8e36fa4e32749abf6d1fb66a (git) Affected: bd72d4acda1069579b35123e3cc0b21ec1193a21 , < f9f4366d2ff93b07c2571561c776bd9a708078c3 (git) Affected: bd72d4acda1069579b35123e3cc0b21ec1193a21 , < 84dd57fb0359500092f1101409ca32091731490d (git)
Linux	Linux	Affected: 6.18 Unaffected: 0 , < 6.18 (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": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/amdxdna/amdxdna_ubuf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5a68d2c99c859e6e8e36fa4e32749abf6d1fb66a",
              "status": "affected",
              "version": "bd72d4acda1069579b35123e3cc0b21ec1193a21",
              "versionType": "git"
            },
            {
              "lessThan": "f9f4366d2ff93b07c2571561c776bd9a708078c3",
              "status": "affected",
              "version": "bd72d4acda1069579b35123e3cc0b21ec1193a21",
              "versionType": "git"
            },
            {
              "lessThan": "84dd57fb0359500092f1101409ca32091731490d",
              "status": "affected",
              "version": "bd72d4acda1069579b35123e3cc0b21ec1193a21",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/amdxdna/amdxdna_ubuf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "lessThan": "6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.14",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.4",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Fix memory leak in amdxdna_ubuf_map\n\nThe amdxdna_ubuf_map() function allocates memory for sg and\ninternal sg table structures, but it fails to free them if subsequent\noperations (sg_alloc_table_from_pages or dma_map_sgtable) fail."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:17:22.048Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5a68d2c99c859e6e8e36fa4e32749abf6d1fb66a"
        },
        {
          "url": "https://git.kernel.org/stable/c/f9f4366d2ff93b07c2571561c776bd9a708078c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/84dd57fb0359500092f1101409ca32091731490d"
        }
      ],
      "title": "accel/amdxdna: Fix memory leak in amdxdna_ubuf_map",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45908",
    "datePublished": "2026-05-27T12:17:22.048Z",
    "dateReserved": "2026-05-13T15:03:33.084Z",
    "dateUpdated": "2026-05-27T12:17:22.048Z",
    "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-6432-66V6-M255

CVE-2026-45908 (GCVE-0-2026-45908)

Tags

Sightings

Nomenclature