Vulnerability-Lookup

GHSA-6F33-3FRM-64P4

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46087"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:30Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-6f33-3frm-64p4",
  "modified": "2026-05-27T15:33:23Z",
  "published": "2026-05-27T15:33:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46087"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/50bc1d7e0f3bb6932c8dc5da0907eead0790176b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a62c58411cbd748d7aeab0e5b0963e33ff47a7a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e04ed278d25bf15769800bf6e35c6737f137186f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-46087 (GCVE-0-2026-46087)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:58 – Updated: 2026-05-27 12:58

Title

mm/damon/stat: fix memory leak on damon_start() failure in damon_stat_start()

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.

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/8a62c58411cbd748d…
https://git.kernel.org/stable/c/50bc1d7e0f3bb6932…
https://git.kernel.org/stable/c/e04ed278d25bf1576…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 369c415e60732b7c8ed33368891581246f580d7a , < 8a62c58411cbd748d7aeab0e5b0963e33ff47a7a (git) Affected: 369c415e60732b7c8ed33368891581246f580d7a , < 50bc1d7e0f3bb6932c8dc5da0907eead0790176b (git) Affected: 369c415e60732b7c8ed33368891581246f580d7a , < e04ed278d25bf15769800bf6e35c6737f137186f (git)
Linux	Linux	Affected: 6.17 Unaffected: 0 , < 6.17 (semver) Unaffected: 6.18.27 , ≤ 6.18.* (semver) Unaffected: 7.0.4 , ≤ 7.0.* (semver) Unaffected: 7.1-rc1 , ≤ * (original_commit_for_fix)

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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",
              "status": "affected",
              "version": "369c415e60732b7c8ed33368891581246f580d7a",
              "versionType": "git"
            },
            {
              "lessThan": "e04ed278d25bf15769800bf6e35c6737f137186f",
              "status": "affected",
              "version": "369c415e60732b7c8ed33368891581246f580d7a",
              "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"
            },
            {
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc1",
              "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
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1-rc1",
                  "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": "2026-05-27T12:58:30.611Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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        },
        {
          "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": "2026-05-27T12:58:30.611Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-6F33-3FRM-64P4

CVE-2026-46087 (GCVE-0-2026-46087)

Tags

Sightings

Nomenclature