CVE-2025-22074 (GCVE-0-2025-22074)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2025-05-26 05:17
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix r_count dec/increment mismatch r_count is only increased when there is an oplock break wait, so r_count inc/decrement are not paired. This can cause r_count to become negative, which can lead to a problem where the ksmbd thread does not terminate.
References
Impacted products
Vendor Product Version
Linux Linux Version: 09aeab68033161cb54f194da93e51a11aee6144b
Version: a4261bbc33fbf99b99c80aa3a2c5097611802980
Version: f17d1c63a76b0fe8e9c78023a86507a3a6d62cfa
Version: 3aa660c059240e0c795217182cf7df32909dd917
Version: 3aa660c059240e0c795217182cf7df32909dd917
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/oplock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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            {
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        {
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          "product": "Linux",
          "programFiles": [
            "fs/smb/server/oplock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "lessThan": "6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.87",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.87",
                  "versionStartIncluding": "6.6.84",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.23",
                  "versionStartIncluding": "6.12.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.13.8",
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix r_count dec/increment mismatch\n\nr_count is only increased when there is an oplock break wait,\nso r_count inc/decrement are not paired. This can cause r_count\nto become negative, which can lead to a problem where the ksmbd\nthread does not terminate."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:17:54.331Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4790bcb269e5d6d88200a67c54ae6d627332a3be"
        },
        {
          "url": "https://git.kernel.org/stable/c/457db486203c90e10c3efc87fd45cc7000b1cd36"
        },
        {
          "url": "https://git.kernel.org/stable/c/20378cf48359f39dee0ef9b61470ebe77bd49c0d"
        },
        {
          "url": "https://git.kernel.org/stable/c/c2ec33d46b4d1c8085dab5d02e00b21f4f0fb8a9"
        },
        {
          "url": "https://git.kernel.org/stable/c/ddb7ea36ba7129c2ed107e2186591128618864e1"
        }
      ],
      "title": "ksmbd: fix r_count dec/increment mismatch",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-22074",
    "datePublished": "2025-04-16T14:12:25.921Z",
    "dateReserved": "2024-12-29T08:45:45.814Z",
    "dateUpdated": "2025-05-26T05:17:54.331Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-22074\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-16T15:16:01.593\",\"lastModified\":\"2025-04-17T20:22:16.240\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nksmbd: fix r_count dec/increment mismatch\\n\\nr_count is only increased when there is an oplock break wait,\\nso r_count inc/decrement are not paired. This can cause r_count\\nto become negative, which can lead to a problem where the ksmbd\\nthread does not terminate.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: se corrige la discrepancia entre r_count decrement y decrement. r_count solo aumenta cuando hay una espera de interrupci\u00f3n de oplock, por lo que r_count inc/decrement no se empareja. Esto puede provocar que r_count sea negativo, lo que puede provocar un problema donde el subproceso ksmbd no termina.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/20378cf48359f39dee0ef9b61470ebe77bd49c0d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/457db486203c90e10c3efc87fd45cc7000b1cd36\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4790bcb269e5d6d88200a67c54ae6d627332a3be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c2ec33d46b4d1c8085dab5d02e00b21f4f0fb8a9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ddb7ea36ba7129c2ed107e2186591128618864e1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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