Vulnerability-Lookup

GHSA-PQJ5-XFRJ-PV58

Vulnerability from github – Published: 2026-04-24 15:32 – Updated: 2026-04-24 15:32

Details

In the Linux kernel, the following vulnerability has been resolved:

mm/damon/sysfs: dealloc repeat_call_control if damon_call() fails

damon_call() for repeat_call_control of DAMON_SYSFS could fail if somehow the kdamond is stopped before the damon_call(). It could happen, for example, when te damon context was made for monitroing of a virtual address processes, and the process is terminated immediately, before the damon_call() invocation. In the case, the dyanmically allocated repeat_call_control is not deallocated and leaked.

Fix the leak by deallocating the repeat_call_control under the damon_call() failure.

This issue is discovered by sashiko [1].

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31653"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-24T15:16:44Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs: dealloc repeat_call_control if damon_call() fails\n\ndamon_call() for repeat_call_control of DAMON_SYSFS could fail if somehow\nthe kdamond is stopped before the damon_call().  It could happen, for\nexample, when te damon context was made for monitroing of a virtual\naddress processes, and the process is terminated immediately, before the\ndamon_call() invocation.  In the case, the dyanmically allocated\nrepeat_call_control is not deallocated and leaked.\n\nFix the leak by deallocating the repeat_call_control under the\ndamon_call() failure.\n\nThis issue is discovered by sashiko [1].",
  "id": "GHSA-pqj5-xfrj-pv58",
  "modified": "2026-04-24T15:32:36Z",
  "published": "2026-04-24T15:32:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31653"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0199390a6b92fc21860e1b858abf525c7e73b956"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0655f5cf1735508394ef8af98ddcfab3ac1c1cc5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b9dadf026a9fb681ed32a0646adc10ab485bf3b1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-31653 (GCVE-0-2026-31653)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:45 – Updated: 2026-04-24 14:45

Title

mm/damon/sysfs: dealloc repeat_call_control if damon_call() fails

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: dealloc repeat_call_control if damon_call() fails damon_call() for repeat_call_control of DAMON_SYSFS could fail if somehow the kdamond is stopped before the damon_call(). It could happen, for example, when te damon context was made for monitroing of a virtual address processes, and the process is terminated immediately, before the damon_call() invocation. In the case, the dyanmically allocated repeat_call_control is not deallocated and leaked. Fix the leak by deallocating the repeat_call_control under the damon_call() failure. This issue is discovered by sashiko [1].

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/b9dadf026a9fb681e…
	https://git.kernel.org/stable/c/0655f5cf173550839…
	https://git.kernel.org/stable/c/0199390a6b92fc218…

Impacted products

Vendor

Product

Version

Linux

Affected: 04a06b139ec08aa63d7377f6d3e5218f8ddb1c5d , < b9dadf026a9fb681ed32a0646adc10ab485bf3b1 (git)
Affected: 04a06b139ec08aa63d7377f6d3e5218f8ddb1c5d , < 0655f5cf1735508394ef8af98ddcfab3ac1c1cc5 (git)
Affected: 04a06b139ec08aa63d7377f6d3e5218f8ddb1c5d , < 0199390a6b92fc21860e1b858abf525c7e73b956 (git)

Linux

Affected: 6.17
Unaffected: 0 , < 6.17 (semver)
Unaffected: 6.18.23 , ≤ 6.18.* (semver)
Unaffected: 6.19.13 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/sysfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b9dadf026a9fb681ed32a0646adc10ab485bf3b1",
              "status": "affected",
              "version": "04a06b139ec08aa63d7377f6d3e5218f8ddb1c5d",
              "versionType": "git"
            },
            {
              "lessThan": "0655f5cf1735508394ef8af98ddcfab3ac1c1cc5",
              "status": "affected",
              "version": "04a06b139ec08aa63d7377f6d3e5218f8ddb1c5d",
              "versionType": "git"
            },
            {
              "lessThan": "0199390a6b92fc21860e1b858abf525c7e73b956",
              "status": "affected",
              "version": "04a06b139ec08aa63d7377f6d3e5218f8ddb1c5d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/sysfs.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": "6.18.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.23",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.13",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "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/sysfs: dealloc repeat_call_control if damon_call() fails\n\ndamon_call() for repeat_call_control of DAMON_SYSFS could fail if somehow\nthe kdamond is stopped before the damon_call().  It could happen, for\nexample, when te damon context was made for monitroing of a virtual\naddress processes, and the process is terminated immediately, before the\ndamon_call() invocation.  In the case, the dyanmically allocated\nrepeat_call_control is not deallocated and leaked.\n\nFix the leak by deallocating the repeat_call_control under the\ndamon_call() failure.\n\nThis issue is discovered by sashiko [1]."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-24T14:45:05.689Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/b9dadf026a9fb681ed32a0646adc10ab485bf3b1"
        },
        {
          "url": "https://git.kernel.org/stable/c/0655f5cf1735508394ef8af98ddcfab3ac1c1cc5"
        },
        {
          "url": "https://git.kernel.org/stable/c/0199390a6b92fc21860e1b858abf525c7e73b956"
        }
      ],
      "title": "mm/damon/sysfs: dealloc repeat_call_control if damon_call() fails",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31653",
    "datePublished": "2026-04-24T14:45:05.689Z",
    "dateReserved": "2026-03-09T15:48:24.128Z",
    "dateUpdated": "2026-04-24T14:45:05.689Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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-PQJ5-XFRJ-PV58

CVE-2026-31653 (GCVE-0-2026-31653)

Tags

Sightings

Nomenclature