Vulnerability-Lookup

GHSA-WXXM-77V6-P8HQ

Vulnerability from github – Published: 2026-07-01 15:35 – Updated: 2026-07-01 15:35

Details

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

mm/damon/lru_sort: handle ctx allocation failure

DAMON_LRU_SORT allocates the damon_ctx object for its kdamond in its init function. damon_lru_sort_enabled_store() wrongly assumes the allocation will always succeed once tried. If the damon_ctx allocation was failed, therefore, code execution reaches to damon_commit_ctx() while 'ctx' is NULL. As a result, it dereferences the NULL 'ctx' pointer. Avoid the NULL dereference by returning -ENOMEM if 'ctx' is NULL.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53335"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-01T14:16:41Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/lru_sort: handle ctx allocation failure\n\nDAMON_LRU_SORT allocates the damon_ctx object for its kdamond in its init\nfunction.  damon_lru_sort_enabled_store() wrongly assumes the allocation\nwill always succeed once tried.  If the damon_ctx allocation was failed,\ntherefore, code execution reaches to damon_commit_ctx() while \u0027ctx\u0027 is\nNULL.  As a result, it dereferences the NULL \u0027ctx\u0027 pointer.  Avoid the\nNULL dereference by returning -ENOMEM if \u0027ctx\u0027 is NULL.",
  "id": "GHSA-wxxm-77v6-p8hq",
  "modified": "2026-07-01T15:35:19Z",
  "published": "2026-07-01T15:35:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53335"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d48f15659395bf1381114f01be91bc68e0be46a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab04340b5ae5d52c1d46b750538febcde9d889e7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/daab1996431a71f43219dcac48ecc9ad2aad3f1c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-53335 (GCVE-0-2026-53335)

Vulnerability from cvelistv5 – Published: 2026-07-01 13:32 – Updated: 2026-07-01 13:32

Title

mm/damon/lru_sort: handle ctx allocation failure

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/damon/lru_sort: handle ctx allocation failure DAMON_LRU_SORT allocates the damon_ctx object for its kdamond in its init function. damon_lru_sort_enabled_store() wrongly assumes the allocation will always succeed once tried. If the damon_ctx allocation was failed, therefore, code execution reaches to damon_commit_ctx() while 'ctx' is NULL. As a result, it dereferences the NULL 'ctx' pointer. Avoid the NULL dereference by returning -ENOMEM if 'ctx' is NULL.

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/6d48f15659395bf13…
https://git.kernel.org/stable/c/daab1996431a71f43…
https://git.kernel.org/stable/c/ab04340b5ae5d52c1…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: c4a8e662c839ac0003e4781aa324cb2d68ed9cb1 , < 6d48f15659395bf1381114f01be91bc68e0be46a (git) Affected: c4a8e662c839ac0003e4781aa324cb2d68ed9cb1 , < daab1996431a71f43219dcac48ecc9ad2aad3f1c (git) Affected: c4a8e662c839ac0003e4781aa324cb2d68ed9cb1 , < ab04340b5ae5d52c1d46b750538febcde9d889e7 (git)
Linux	Linux	Affected: 6.18 Unaffected: 0 , < 6.18 (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/lru_sort.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6d48f15659395bf1381114f01be91bc68e0be46a",
              "status": "affected",
              "version": "c4a8e662c839ac0003e4781aa324cb2d68ed9cb1",
              "versionType": "git"
            },
            {
              "lessThan": "daab1996431a71f43219dcac48ecc9ad2aad3f1c",
              "status": "affected",
              "version": "c4a8e662c839ac0003e4781aa324cb2d68ed9cb1",
              "versionType": "git"
            },
            {
              "lessThan": "ab04340b5ae5d52c1d46b750538febcde9d889e7",
              "status": "affected",
              "version": "c4a8e662c839ac0003e4781aa324cb2d68ed9cb1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/lru_sort.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "lessThan": "6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.36",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.13",
              "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": "6.18.36",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.18",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/lru_sort: handle ctx allocation failure\n\nDAMON_LRU_SORT allocates the damon_ctx object for its kdamond in its init\nfunction.  damon_lru_sort_enabled_store() wrongly assumes the allocation\nwill always succeed once tried.  If the damon_ctx allocation was failed,\ntherefore, code execution reaches to damon_commit_ctx() while \u0027ctx\u0027 is\nNULL.  As a result, it dereferences the NULL \u0027ctx\u0027 pointer.  Avoid the\nNULL dereference by returning -ENOMEM if \u0027ctx\u0027 is NULL."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-01T13:32:17.953Z",
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        {
          "url": "https://git.kernel.org/stable/c/ab04340b5ae5d52c1d46b750538febcde9d889e7"
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      ],
      "title": "mm/damon/lru_sort: handle ctx allocation failure",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53335",
    "datePublished": "2026-07-01T13:32:17.953Z",
    "dateReserved": "2026-06-09T07:44:35.399Z",
    "dateUpdated": "2026-07-01T13:32:17.953Z",
    "state": "PUBLISHED"
  },
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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-WXXM-77V6-P8HQ

CVE-2026-53335 (GCVE-0-2026-53335)

Tags

Sightings

Nomenclature