CVE-2025-68252 (GCVE-0-2025-68252)

Vulnerability from cvelistv5 – Published: 2025-12-16 14:32 – Updated: 2026-05-11 21:49
VLAI
Title
misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup
Summary
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup In fastrpc_map_lookup, dma_buf_get is called to obtain a reference to the dma_buf for comparison purposes. However, this reference is never released when the function returns, leading to a dma_buf memory leak. Fix this by adding dma_buf_put before returning from the function, ensuring that the temporarily acquired reference is properly released regardless of whether a matching map is found. Rule: add
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7018 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ec5cb80503bbfee67573699fe52fcf456fd57678 , < c2fef5ebb73f3dabae6fbc571d181914ed32c483 (git)
Affected: 6e0d6cc39f410a4d9ea774fbb254c68fe02ff4bb , < 9a297a68c3ba4a7ecb31ed52f61bd6634abb79d3 (git)
Affected: 6e0928a8988e873da9946e17f8065ad77c720186 , < e17b13387827adce7acb19ac0f07f9bcafe0ff4c (git)
Affected: 1986bba9597b3d97d3e80530dc457a1cd1994e22 , < 214e81a63a9aa0be42382ef0365ba5ed32c513ab (git)
Affected: 9031626ade38b092b72638dfe0c6ffce8d8acd43 , < fff111bf45cbeeb659324316d68554e35d350092 (git)
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Linux Linux Affected: 6.1.156 , < 6.1.158 (semver)
Affected: 6.6.112 , < 6.6.115 (semver)
Affected: 6.12.53 , < 6.12.56 (semver)
Affected: 6.17.3 , < 6.17.6 (semver)
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Show details on NVD website
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/misc/fastrpc.c"
          ],
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup\n\nIn fastrpc_map_lookup, dma_buf_get is called to obtain a reference to\nthe dma_buf for comparison purposes. However, this reference is never\nreleased when the function returns, leading to a dma_buf memory leak.\n\nFix this by adding dma_buf_put before returning from the function,\nensuring that the temporarily acquired reference is properly released\nregardless of whether a matching map is found.\n\nRule: add"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:49:46.501Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/c2fef5ebb73f3dabae6fbc571d181914ed32c483"
        },
        {
          "url": "https://git.kernel.org/stable/c/9a297a68c3ba4a7ecb31ed52f61bd6634abb79d3"
        },
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          "url": "https://git.kernel.org/stable/c/e17b13387827adce7acb19ac0f07f9bcafe0ff4c"
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        },
        {
          "url": "https://git.kernel.org/stable/c/fff111bf45cbeeb659324316d68554e35d350092"
        }
      ],
      "title": "misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68252",
    "datePublished": "2025-12-16T14:32:18.819Z",
    "dateReserved": "2025-12-16T13:41:40.266Z",
    "dateUpdated": "2026-05-11T21:49:46.501Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-11-01",
      "epss": "0.00186",
      "percentile": "0.08193"
    },
    "nvd": {
      "cve": {
        "affected": [
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            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/misc/fastrpc.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup\n\nIn fastrpc_map_lookup, dma_buf_get is called to obtain a reference to\nthe dma_buf for comparison purposes. However, this reference is never\nreleased when the function returns, leading to a dma_buf memory leak.\n\nFix this by adding dma_buf_put before returning from the function,\nensuring that the temporarily acquired reference is properly released\nregardless of whether a matching map is found.\n\nRule: add"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmisc: fastrpc: Correcci\u00f3n de fuga de objeto dma_buf en fastrpc_map_lookup\n\nEn fastrpc_map_lookup, se llama a dma_buf_get para obtener una referencia al dma_buf con fines de comparaci\u00f3n. Sin embargo, esta referencia nunca se libera cuando la funci\u00f3n retorna, lo que provoca una fuga de memoria de dma_buf.\n\nEsto se corrige a\u00f1adiendo dma_buf_put antes de retornar de la funci\u00f3n, asegurando que la referencia adquirida temporalmente se libere correctamente independientemente de si se encuentra un mapa coincidente."
          }
        ],
        "id": "CVE-2025-68252",
        "lastModified": "2026-10-14T13:10:00.187",
        "metrics": {},
        "published": "2025-12-16T15:15:54.520",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/214e81a63a9aa0be42382ef0365ba5ed32c513ab"
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
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      "aggregate_severity": "None",
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      "cve": "CVE-2025-68252",
      "id": "CVE-2025-68252",
      "initial_release_date": "2025-12-16T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68252.json",
      "version": "3"
    }
  }
}



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