CVE-2025-38095 (GCVE-0-2025-38095)
Vulnerability from cvelistv5
Published
2025-07-03 07:44
Modified
2025-07-03 07:44
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: dma-buf: insert memory barrier before updating num_fences smp_store_mb() inserts memory barrier after storing operation. It is different with what the comment is originally aiming so Null pointer dereference can be happened if memory update is reordered.
References
Impacted products
Vendor Product Version
Linux Linux Version: a590d0fdbaa56f482ff515e1040b6d9b1b200d63
Version: a590d0fdbaa56f482ff515e1040b6d9b1b200d63
Version: a590d0fdbaa56f482ff515e1040b6d9b1b200d63
Version: a590d0fdbaa56f482ff515e1040b6d9b1b200d63
Version: a590d0fdbaa56f482ff515e1040b6d9b1b200d63
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma-buf/dma-resv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.0"
            },
            {
              "lessThan": "5.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.140",
              "versionType": "semver"
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.14.8",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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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\ndma-buf: insert memory barrier before updating num_fences\n\nsmp_store_mb() inserts memory barrier after storing operation.\nIt is different with what the comment is originally aiming so Null\npointer dereference can be happened if memory update is reordered."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-03T07:44:18.214Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/3becc659f9cb76b481ad1fb71f54d5c8d6332d3f"
        },
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          "url": "https://git.kernel.org/stable/c/c9d2b9a80d06a58f37e0dc8c827075639b443927"
        },
        {
          "url": "https://git.kernel.org/stable/c/fe1bebd0edb22e3536cbc920ec713331d1367ad4"
        },
        {
          "url": "https://git.kernel.org/stable/c/08680c4dadc6e736c75bc2409d833f03f9003c51"
        },
        {
          "url": "https://git.kernel.org/stable/c/72c7d62583ebce7baeb61acce6057c361f73be4a"
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      ],
      "title": "dma-buf: insert memory barrier before updating num_fences",
      "x_generator": {
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38095",
    "datePublished": "2025-07-03T07:44:18.214Z",
    "dateReserved": "2025-04-16T04:51:23.984Z",
    "dateUpdated": "2025-07-03T07:44:18.214Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38095\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-03T08:15:26.300\",\"lastModified\":\"2025-07-03T15:13:53.147\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndma-buf: insert memory barrier before updating num_fences\\n\\nsmp_store_mb() inserts memory barrier after storing operation.\\nIt is different with what the comment is originally aiming so Null\\npointer dereference can be happened if memory update is reordered.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dma-buf: inserta una barrera de memoria antes de actualizar num_fences. smp_store_mb() inserta una barrera de memoria despu\u00e9s de la operaci\u00f3n de almacenamiento. Esto difiere del objetivo original del comentario, por lo que puede producirse una desreferencia de puntero nulo si se reordena la actualizaci\u00f3n de memoria.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/08680c4dadc6e736c75bc2409d833f03f9003c51\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3becc659f9cb76b481ad1fb71f54d5c8d6332d3f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/72c7d62583ebce7baeb61acce6057c361f73be4a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c9d2b9a80d06a58f37e0dc8c827075639b443927\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fe1bebd0edb22e3536cbc920ec713331d1367ad4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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