CVE-2026-46087 (GCVE-0-2026-46087)
Vulnerability from cvelistv5
Published
2026-05-27 12:58
Modified
2026-06-14 17:53
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/damon/stat: fix memory leak on damon_start() failure in damon_stat_start() Destroy the DAMON context and reset the global pointer when damon_start() fails. Otherwise, the context allocated by damon_stat_build_ctx() is leaked, and the stale damon_stat_context pointer will be overwritten on the next enable attempt, making the old allocation permanently unreachable.
References
Impacted products
Vendor Product Version
Linux Linux Version: 369c415e60732b7c8ed33368891581246f580d7a
Version: 369c415e60732b7c8ed33368891581246f580d7a
Version: 369c415e60732b7c8ed33368891581246f580d7a
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/stat.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8a62c58411cbd748d7aeab0e5b0963e33ff47a7a",
              "status": "affected",
              "version": "369c415e60732b7c8ed33368891581246f580d7a",
              "versionType": "git"
            },
            {
              "lessThan": "50bc1d7e0f3bb6932c8dc5da0907eead0790176b",
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              "version": "369c415e60732b7c8ed33368891581246f580d7a",
              "versionType": "git"
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/stat.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "lessThan": "6.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.27",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.4",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/stat: fix memory leak on damon_start() failure in damon_stat_start()\n\nDestroy the DAMON context and reset the global pointer when damon_start()\nfails.  Otherwise, the context allocated by damon_stat_build_ctx() is\nleaked, and the stale damon_stat_context pointer will be overwritten on\nthe next enable attempt, making the old allocation permanently\nunreachable."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T17:53:23.838Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8a62c58411cbd748d7aeab0e5b0963e33ff47a7a"
        },
        {
          "url": "https://git.kernel.org/stable/c/50bc1d7e0f3bb6932c8dc5da0907eead0790176b"
        },
        {
          "url": "https://git.kernel.org/stable/c/e04ed278d25bf15769800bf6e35c6737f137186f"
        }
      ],
      "title": "mm/damon/stat: fix memory leak on damon_start() failure in damon_stat_start()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46087",
    "datePublished": "2026-05-27T12:58:30.611Z",
    "dateReserved": "2026-05-13T15:03:33.096Z",
    "dateUpdated": "2026-06-14T17:53:23.838Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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