CVE-2023-54042 (GCVE-0-2023-54042)

Vulnerability from cvelistv5 – Published: 2025-12-24 10:56 – Updated: 2025-12-24 10:56
VLAI?
Title
powerpc/64s: Fix VAS mm use after free
Summary
In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Fix VAS mm use after free The refcount on mm is dropped before the coprocessor is detached.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 , < f7d92313002b2d543500cc417d8079aaed1fb0a8 (git)
Affected: 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 , < 4e82f92c349ea603736ade1e814861c0182a55ad (git)
Affected: 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 , < db8657fdd53c5e3069149d7f957cb60e63027bb2 (git)
Affected: 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 , < 421cd1544480f2458042fe7f4913a2069c4d7251 (git)
Affected: 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 , < b4bda59b47879cce38a6ec5a01cd3cac702b5331 (git)
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    Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.121 , ≤ 5.15.* (semver)
Unaffected: 6.1.39 , ≤ 6.1.* (semver)
Unaffected: 6.3.13 , ≤ 6.3.* (semver)
Unaffected: 6.4.4 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/powerpc/platforms/powernv/vas-window.c",
            "arch/powerpc/platforms/pseries/vas.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "product": "Linux",
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            "arch/powerpc/platforms/pseries/vas.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "lessThanOrEqual": "5.15.*",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
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                },
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                },
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/64s: Fix VAS mm use after free\n\nThe refcount on mm is dropped before the coprocessor is detached."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-24T10:56:07.565Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f7d92313002b2d543500cc417d8079aaed1fb0a8"
        },
        {
          "url": "https://git.kernel.org/stable/c/4e82f92c349ea603736ade1e814861c0182a55ad"
        },
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          "url": "https://git.kernel.org/stable/c/db8657fdd53c5e3069149d7f957cb60e63027bb2"
        },
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          "url": "https://git.kernel.org/stable/c/421cd1544480f2458042fe7f4913a2069c4d7251"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4bda59b47879cce38a6ec5a01cd3cac702b5331"
        }
      ],
      "title": "powerpc/64s: Fix VAS mm use after free",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54042",
    "datePublished": "2025-12-24T10:56:07.565Z",
    "dateReserved": "2025-12-24T10:53:46.181Z",
    "dateUpdated": "2025-12-24T10:56:07.565Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-54042\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-24T11:15:57.187\",\"lastModified\":\"2025-12-24T11:15:57.187\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\npowerpc/64s: Fix VAS mm use after free\\n\\nThe refcount on mm is dropped before the coprocessor is detached.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/421cd1544480f2458042fe7f4913a2069c4d7251\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4e82f92c349ea603736ade1e814861c0182a55ad\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b4bda59b47879cce38a6ec5a01cd3cac702b5331\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/db8657fdd53c5e3069149d7f957cb60e63027bb2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f7d92313002b2d543500cc417d8079aaed1fb0a8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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Sightings

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  • 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.



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