Vulnerability-Lookup

FKIE_CVE-2026-23420

Vulnerability from fkie_nvd - Published: 2026-04-03 14:16 - Updated: 2026-04-24 15:21

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: wlcore: Fix a locking bug Make sure that wl->mutex is locked before it is unlocked. This has been detected by the Clang thread-safety analyzer.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1a1c28a08d74716f3f8e3a21c86b30d0ff13521a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4ae8faf31b24c78653f4433298ee52813a56967a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5feeea59ed142e15c3284d0b1a364c6786bf3487	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/72c6df8f284b3a49812ce2ac136727ace70acc7c	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7ab511003c5ae3bf5364d7699a2e3ab1db513680	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/aca4c9e4901b01b8b985993dc7df80bd1d1338bd	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fc404390a386404cf9822d4091ccae1f61efcbcd	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fcef983ad88832f3aa83491a174c345de57afbbd	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	4.19
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DCA68506-DA89-4BB0-BB51-9DE08D03AA32",
              "versionEndExcluding": "5.10.253",
              "versionStartIncluding": "4.19.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "20DDB3E9-AABF-4107-ADB0-5362AA067045",
              "versionEndExcluding": "5.15.203",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2EDC6BAF-B710-4E26-B6AA-D68922EE7B43",
              "versionEndExcluding": "6.1.167",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C57BB918-DF28-46B3-94F7-144176841267",
              "versionEndExcluding": "6.6.130",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B3D12E00-E42D-4056-B354-BAD4903C03A5",
              "versionEndExcluding": "6.12.77",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A5E006E4-59C7-43C1-9231-62A72219F2BA",
              "versionEndExcluding": "6.18.17",
              "versionStartIncluding": "6.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "69245D10-0B71-485E-80C3-A64F077004D3",
              "versionEndExcluding": "6.19.7",
              "versionStartIncluding": "6.19",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:4.19:-:*:*:*:*:*:*",
              "matchCriteriaId": "CFDAD450-8799-4C2D-80CE-2AA45DEC35CE",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*",
              "matchCriteriaId": "58A9FEFF-C040-420D-8F0A-BFDAAA1DF258",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*",
              "matchCriteriaId": "1D2315C0-D46F-4F85-9754-F9E5E11374A6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*",
              "matchCriteriaId": "512EE3A8-A590-4501-9A94-5D4B268D6138",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wlcore: Fix a locking bug\n\nMake sure that wl-\u003emutex is locked before it is unlocked. This has been\ndetected by the Clang thread-safety analyzer."
    }
  ],
  "id": "CVE-2026-23420",
  "lastModified": "2026-04-24T15:21:23.107",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-04-03T14:16:28.027",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/1a1c28a08d74716f3f8e3a21c86b30d0ff13521a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/4ae8faf31b24c78653f4433298ee52813a56967a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5feeea59ed142e15c3284d0b1a364c6786bf3487"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/72c6df8f284b3a49812ce2ac136727ace70acc7c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/7ab511003c5ae3bf5364d7699a2e3ab1db513680"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/aca4c9e4901b01b8b985993dc7df80bd1d1338bd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/fc404390a386404cf9822d4091ccae1f61efcbcd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/fcef983ad88832f3aa83491a174c345de57afbbd"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-23420 (GCVE-0-2026-23420)

Vulnerability from cvelistv5 – Published: 2026-04-03 13:24 – Updated: 2026-05-11 22:06

Title

wifi: wlcore: Fix a locking bug

Summary

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/4ae8faf31b24c7865…
https://git.kernel.org/stable/c/fc404390a386404cf…
https://git.kernel.org/stable/c/7ab511003c5ae3bf5…
https://git.kernel.org/stable/c/aca4c9e4901b01b8b…
https://git.kernel.org/stable/c/5feeea59ed142e15c…
https://git.kernel.org/stable/c/fcef983ad88832f3a…
https://git.kernel.org/stable/c/1a1c28a08d74716f3…
https://git.kernel.org/stable/c/72c6df8f284b3a498…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 45aa7f071b06c8481afed4c7b93e07c9584741e8 , < 4ae8faf31b24c78653f4433298ee52813a56967a (git) Affected: 45aa7f071b06c8481afed4c7b93e07c9584741e8 , < fc404390a386404cf9822d4091ccae1f61efcbcd (git) Affected: 45aa7f071b06c8481afed4c7b93e07c9584741e8 , < 7ab511003c5ae3bf5364d7699a2e3ab1db513680 (git) Affected: 45aa7f071b06c8481afed4c7b93e07c9584741e8 , < aca4c9e4901b01b8b985993dc7df80bd1d1338bd (git) Affected: 45aa7f071b06c8481afed4c7b93e07c9584741e8 , < 5feeea59ed142e15c3284d0b1a364c6786bf3487 (git) Affected: 45aa7f071b06c8481afed4c7b93e07c9584741e8 , < fcef983ad88832f3aa83491a174c345de57afbbd (git) Affected: 45aa7f071b06c8481afed4c7b93e07c9584741e8 , < 1a1c28a08d74716f3f8e3a21c86b30d0ff13521a (git) Affected: 45aa7f071b06c8481afed4c7b93e07c9584741e8 , < 72c6df8f284b3a49812ce2ac136727ace70acc7c (git)
Linux	Linux	Affected: 4.19 Unaffected: 0 , < 4.19 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.77 , ≤ 6.12.* (semver) Unaffected: 6.18.17 , ≤ 6.18.* (semver) Unaffected: 6.19.7 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ti/wlcore/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4ae8faf31b24c78653f4433298ee52813a56967a",
              "status": "affected",
              "version": "45aa7f071b06c8481afed4c7b93e07c9584741e8",
              "versionType": "git"
            },
            {
              "lessThan": "fc404390a386404cf9822d4091ccae1f61efcbcd",
              "status": "affected",
              "version": "45aa7f071b06c8481afed4c7b93e07c9584741e8",
              "versionType": "git"
            },
            {
              "lessThan": "7ab511003c5ae3bf5364d7699a2e3ab1db513680",
              "status": "affected",
              "version": "45aa7f071b06c8481afed4c7b93e07c9584741e8",
              "versionType": "git"
            },
            {
              "lessThan": "aca4c9e4901b01b8b985993dc7df80bd1d1338bd",
              "status": "affected",
              "version": "45aa7f071b06c8481afed4c7b93e07c9584741e8",
              "versionType": "git"
            },
            {
              "lessThan": "5feeea59ed142e15c3284d0b1a364c6786bf3487",
              "status": "affected",
              "version": "45aa7f071b06c8481afed4c7b93e07c9584741e8",
              "versionType": "git"
            },
            {
              "lessThan": "fcef983ad88832f3aa83491a174c345de57afbbd",
              "status": "affected",
              "version": "45aa7f071b06c8481afed4c7b93e07c9584741e8",
              "versionType": "git"
            },
            {
              "lessThan": "1a1c28a08d74716f3f8e3a21c86b30d0ff13521a",
              "status": "affected",
              "version": "45aa7f071b06c8481afed4c7b93e07c9584741e8",
              "versionType": "git"
            },
            {
              "lessThan": "72c6df8f284b3a49812ce2ac136727ace70acc7c",
              "status": "affected",
              "version": "45aa7f071b06c8481afed4c7b93e07c9584741e8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ti/wlcore/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.19"
            },
            {
              "lessThan": "4.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.253",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.203",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.167",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.130",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.77",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.7",
              "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": "5.10.253",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.203",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.167",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.130",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.77",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.17",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.7",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wlcore: Fix a locking bug\n\nMake sure that wl-\u003emutex is locked before it is unlocked. This has been\ndetected by the Clang thread-safety analyzer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:06:33.758Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4ae8faf31b24c78653f4433298ee52813a56967a"
        },
        {
          "url": "https://git.kernel.org/stable/c/fc404390a386404cf9822d4091ccae1f61efcbcd"
        },
        {
          "url": "https://git.kernel.org/stable/c/7ab511003c5ae3bf5364d7699a2e3ab1db513680"
        },
        {
          "url": "https://git.kernel.org/stable/c/aca4c9e4901b01b8b985993dc7df80bd1d1338bd"
        },
        {
          "url": "https://git.kernel.org/stable/c/5feeea59ed142e15c3284d0b1a364c6786bf3487"
        },
        {
          "url": "https://git.kernel.org/stable/c/fcef983ad88832f3aa83491a174c345de57afbbd"
        },
        {
          "url": "https://git.kernel.org/stable/c/1a1c28a08d74716f3f8e3a21c86b30d0ff13521a"
        },
        {
          "url": "https://git.kernel.org/stable/c/72c6df8f284b3a49812ce2ac136727ace70acc7c"
        }
      ],
      "title": "wifi: wlcore: Fix a locking bug",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23420",
    "datePublished": "2026-04-03T13:24:29.681Z",
    "dateReserved": "2026-01-13T15:37:46.014Z",
    "dateUpdated": "2026-05-11T22:06:33.758Z",
    "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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-23420

CVE-2026-23420 (GCVE-0-2026-23420)

Tags

Sightings

Nomenclature