Vulnerability-Lookup

GHSA-6HCP-X8FR-RWCV

Vulnerability from github – Published: 2025-04-03 09:32 – Updated: 2025-04-10 18:32

Details

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

firmware: qcom: uefisecapp: fix efivars registration race

Since the conversion to using the TZ allocator, the efivars service is registered before the memory pool has been allocated, something which can lead to a NULL-pointer dereference in case of a racing EFI variable access.

Make sure that all resources have been set up before registering the efivars.

Severity

4.7 (Medium)


                  
                    CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21998"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367",
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-03T08:15:15Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: qcom: uefisecapp: fix efivars registration race\n\nSince the conversion to using the TZ allocator, the efivars service is\nregistered before the memory pool has been allocated, something which\ncan lead to a NULL-pointer dereference in case of a racing EFI variable\naccess.\n\nMake sure that all resources have been set up before registering the\nefivars.",
  "id": "GHSA-6hcp-x8fr-rwcv",
  "modified": "2025-04-10T18:32:01Z",
  "published": "2025-04-03T09:32:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21998"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c4e37b381a7a243c298a4858fc0a5a74e737c79a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da8d493a80993972c427002684d0742560f3be4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f15a2b96a0e41c426c63a932d0e63cde7b9784aa"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-21998 (GCVE-0-2025-21998)

Vulnerability from cvelistv5 – Published: 2025-04-03 07:19 – Updated: 2026-05-11 21:10

Title

firmware: qcom: uefisecapp: fix efivars registration race

Summary

In the Linux kernel, the following vulnerability has been resolved: firmware: qcom: uefisecapp: fix efivars registration race Since the conversion to using the TZ allocator, the efivars service is registered before the memory pool has been allocated, something which can lead to a NULL-pointer dereference in case of a racing EFI variable access. Make sure that all resources have been set up before registering the efivars.

Severity

4.7 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 17:10 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux mitre root Scorecard

References

3 references

URL	Tags
https://git.kernel.org/stable/c/c4e37b381a7a243c2…
https://git.kernel.org/stable/c/f15a2b96a0e41c426…
https://git.kernel.org/stable/c/da8d493a80993972c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6612103ec35af6058bb85ab24dae28e119b3c055 , < c4e37b381a7a243c298a4858fc0a5a74e737c79a (git) Affected: 6612103ec35af6058bb85ab24dae28e119b3c055 , < f15a2b96a0e41c426c63a932d0e63cde7b9784aa (git) Affected: 6612103ec35af6058bb85ab24dae28e119b3c055 , < da8d493a80993972c427002684d0742560f3be4a (git)
Linux	Linux	Affected: 6.11 Unaffected: 0 , < 6.11 (semver) Unaffected: 6.12.21 , ≤ 6.12.* (semver) Unaffected: 6.13.9 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 4.7,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-21998",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T17:10:57.712246Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-476",
                "description": "CWE-476 NULL Pointer Dereference",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T17:11:00.349Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/qcom/qcom_qseecom_uefisecapp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c4e37b381a7a243c298a4858fc0a5a74e737c79a",
              "status": "affected",
              "version": "6612103ec35af6058bb85ab24dae28e119b3c055",
              "versionType": "git"
            },
            {
              "lessThan": "f15a2b96a0e41c426c63a932d0e63cde7b9784aa",
              "status": "affected",
              "version": "6612103ec35af6058bb85ab24dae28e119b3c055",
              "versionType": "git"
            },
            {
              "lessThan": "da8d493a80993972c427002684d0742560f3be4a",
              "status": "affected",
              "version": "6612103ec35af6058bb85ab24dae28e119b3c055",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/qcom/qcom_qseecom_uefisecapp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.13.9",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.14",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: qcom: uefisecapp: fix efivars registration race\n\nSince the conversion to using the TZ allocator, the efivars service is\nregistered before the memory pool has been allocated, something which\ncan lead to a NULL-pointer dereference in case of a racing EFI variable\naccess.\n\nMake sure that all resources have been set up before registering the\nefivars."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:10:40.246Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        },
        {
          "url": "https://git.kernel.org/stable/c/da8d493a80993972c427002684d0742560f3be4a"
        }
      ],
      "title": "firmware: qcom: uefisecapp: fix efivars registration race",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21998",
    "datePublished": "2025-04-03T07:19:02.272Z",
    "dateReserved": "2024-12-29T08:45:45.801Z",
    "dateUpdated": "2026-05-11T21:10:40.246Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-6HCP-X8FR-RWCV

CVE-2025-21998 (GCVE-0-2025-21998)

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