Vulnerability-Lookup

GHSA-JJ4R-H87W-8R6G

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:

LoongArch: Fix missing NULL checks for kstrdup()

Replace "of_find_node_by_path("/")" with "of_root" to avoid multiple calls to "of_node_put()".
Fix a potential kernel oops during early boot when memory allocation fails while parsing CPU model from device tree.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31559"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-24T15:16:30Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Fix missing NULL checks for kstrdup()\n\n1. Replace \"of_find_node_by_path(\"/\")\" with \"of_root\" to avoid multiple\ncalls to \"of_node_put()\".\n\n2. Fix a potential kernel oops during early boot when memory allocation\nfails while parsing CPU model from device tree.",
  "id": "GHSA-jj4r-h87w-8r6g",
  "modified": "2026-04-24T15:32:33Z",
  "published": "2026-04-24T15:32:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31559"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3a28daa9b7d7c2ddf2c722e9e95d7e0928bf0cd1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5e7fde2c551f86e6c3de3fd7a9b1f52806ac8db0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1da957c25cf751a2dce8fb7777f82ccbac0cb3e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b61a309743322fb57fb9afa9aa3495ac758e4f5e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-31559 (GCVE-0-2026-31559)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:35 – Updated: 2026-04-25 05:48

Title

LoongArch: Fix missing NULL checks for kstrdup()

Summary

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Fix missing NULL checks for kstrdup() 1. Replace "of_find_node_by_path("/")" with "of_root" to avoid multiple calls to "of_node_put()". 2. Fix a potential kernel oops during early boot when memory allocation fails while parsing CPU model from device tree.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/5e7fde2c551f86e6c…
	https://git.kernel.org/stable/c/a1da957c25cf751a2…
	https://git.kernel.org/stable/c/b61a309743322fb57…
	https://git.kernel.org/stable/c/3a28daa9b7d7c2ddf…

Impacted products

Vendor

Product

Version

Linux

Affected: facc69f43502c135c16b97d5ded7253f15597912 , < 5e7fde2c551f86e6c3de3fd7a9b1f52806ac8db0 (git)
Affected: 70a2365e18affc5ebdaab1ca6a0b3c4f3aac2ee8 , < a1da957c25cf751a2dce8fb7777f82ccbac0cb3e (git)
Affected: 70a2365e18affc5ebdaab1ca6a0b3c4f3aac2ee8 , < b61a309743322fb57fb9afa9aa3495ac758e4f5e (git)
Affected: 70a2365e18affc5ebdaab1ca6a0b3c4f3aac2ee8 , < 3a28daa9b7d7c2ddf2c722e9e95d7e0928bf0cd1 (git)
Affected: 620805dc674eab3055543496a7ef25beb9ffd2a8 (git)
Affected: 8dfeedf9eceadc1a2fc9066b4c5230690d1cad48 (git)

Linux

Affected: 6.17
Unaffected: 0 , < 6.17 (semver)
Unaffected: 6.12.80 , ≤ 6.12.* (semver)
Unaffected: 6.18.21 , ≤ 6.18.* (semver)
Unaffected: 6.19.11 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/kernel/env.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5e7fde2c551f86e6c3de3fd7a9b1f52806ac8db0",
              "status": "affected",
              "version": "facc69f43502c135c16b97d5ded7253f15597912",
              "versionType": "git"
            },
            {
              "lessThan": "a1da957c25cf751a2dce8fb7777f82ccbac0cb3e",
              "status": "affected",
              "version": "70a2365e18affc5ebdaab1ca6a0b3c4f3aac2ee8",
              "versionType": "git"
            },
            {
              "lessThan": "b61a309743322fb57fb9afa9aa3495ac758e4f5e",
              "status": "affected",
              "version": "70a2365e18affc5ebdaab1ca6a0b3c4f3aac2ee8",
              "versionType": "git"
            },
            {
              "lessThan": "3a28daa9b7d7c2ddf2c722e9e95d7e0928bf0cd1",
              "status": "affected",
              "version": "70a2365e18affc5ebdaab1ca6a0b3c4f3aac2ee8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "620805dc674eab3055543496a7ef25beb9ffd2a8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8dfeedf9eceadc1a2fc9066b4c5230690d1cad48",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/kernel/env.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": "6.12.*",
              "status": "unaffected",
              "version": "6.12.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.11",
              "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": "6.12.80",
                  "versionStartIncluding": "6.12.43",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.11",
                  "versionStartIncluding": "6.17",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.16.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Fix missing NULL checks for kstrdup()\n\n1. Replace \"of_find_node_by_path(\"/\")\" with \"of_root\" to avoid multiple\ncalls to \"of_node_put()\".\n\n2. Fix a potential kernel oops during early boot when memory allocation\nfails while parsing CPU model from device tree."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-25T05:48:13.693Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/5e7fde2c551f86e6c3de3fd7a9b1f52806ac8db0"
        },
        {
          "url": "https://git.kernel.org/stable/c/a1da957c25cf751a2dce8fb7777f82ccbac0cb3e"
        },
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          "url": "https://git.kernel.org/stable/c/b61a309743322fb57fb9afa9aa3495ac758e4f5e"
        },
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          "url": "https://git.kernel.org/stable/c/3a28daa9b7d7c2ddf2c722e9e95d7e0928bf0cd1"
        }
      ],
      "title": "LoongArch: Fix missing NULL checks for kstrdup()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31559",
    "datePublished": "2026-04-24T14:35:41.961Z",
    "dateReserved": "2026-03-09T15:48:24.116Z",
    "dateUpdated": "2026-04-25T05:48:13.693Z",
    "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-JJ4R-H87W-8R6G

CVE-2026-31559 (GCVE-0-2026-31559)

Tags

Sightings

Nomenclature