Vulnerability-Lookup

FKIE_CVE-2026-80949

Vulnerability from fkie_nvd - Published: 2026-09-11 20:19 - Updated: 2026-09-14 13:18

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix memory leak in brcmf_sdio_read_control() The memory allocated for buf is not freed in some of the error paths in brcmf_sdio_read_control(). Fix that by adding vfree() calls. [arend: rework as suggested by Johannes]

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0d10db8e94fcb23a799789aaa696b4d8f937e207
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/261d7c7610b4b2f476382c88a2d1ae0cc5e07add
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7704f6ba2a8c492b07a3eaa1e311b4b30d389246
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/86b57fa3172e287bc083113507a965e6d9a46a45
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a732c4f36a4cd79f3702391f88ebb56f2e43b0ee
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b1d0a90a844abccdfed9fe141b5d0d654a821485
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ba04715ee672c336272be3ceb43bda9ffc33eb75
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fdb880a7d575efe8b5c7b5b819b96d9251a3937f

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b1d0a90a844abccdfed9fe141b5d0d654a821485",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "86b57fa3172e287bc083113507a965e6d9a46a45",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "a732c4f36a4cd79f3702391f88ebb56f2e43b0ee",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "7704f6ba2a8c492b07a3eaa1e311b4b30d389246",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "fdb880a7d575efe8b5c7b5b819b96d9251a3937f",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "261d7c7610b4b2f476382c88a2d1ae0cc5e07add",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "ba04715ee672c336272be3ceb43bda9ffc33eb75",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "0d10db8e94fcb23a799789aaa696b4d8f937e207",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.8"
            },
            {
              "lessThan": "3.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: Fix memory leak in brcmf_sdio_read_control()\n\nThe memory allocated for buf is not freed in some of the error paths in\nbrcmf_sdio_read_control(). Fix that by adding vfree() calls.\n\n[arend: rework as suggested by Johannes]"
    }
  ],
  "id": "CVE-2026-80949",
  "lastModified": "2026-09-14T13:18:50.457",
  "metrics": {},
  "published": "2026-09-11T20:19:00.563",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0d10db8e94fcb23a799789aaa696b4d8f937e207"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/261d7c7610b4b2f476382c88a2d1ae0cc5e07add"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7704f6ba2a8c492b07a3eaa1e311b4b30d389246"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/86b57fa3172e287bc083113507a965e6d9a46a45"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a732c4f36a4cd79f3702391f88ebb56f2e43b0ee"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b1d0a90a844abccdfed9fe141b5d0d654a821485"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ba04715ee672c336272be3ceb43bda9ffc33eb75"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fdb880a7d575efe8b5c7b5b819b96d9251a3937f"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-80949 (GCVE-0-2026-80949)

Vulnerability from cvelistv5 – Published: 2026-09-11 19:42 – Updated: 2026-09-14 11:59

Title

wifi: brcmfmac: Fix memory leak in brcmf_sdio_read_control()

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/b1d0a90a844abccdf…
https://git.kernel.org/stable/c/86b57fa3172e287bc…
https://git.kernel.org/stable/c/a732c4f36a4cd79f3…
https://git.kernel.org/stable/c/7704f6ba2a8c492b0…
https://git.kernel.org/stable/c/fdb880a7d575efe8b…
https://git.kernel.org/stable/c/261d7c7610b4b2f47…
https://git.kernel.org/stable/c/ba04715ee672c3362…
https://git.kernel.org/stable/c/0d10db8e94fcb23a7…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 , < b1d0a90a844abccdfed9fe141b5d0d654a821485 (git) Affected: dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 , < 86b57fa3172e287bc083113507a965e6d9a46a45 (git) Affected: dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 , < a732c4f36a4cd79f3702391f88ebb56f2e43b0ee (git) Affected: dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 , < 7704f6ba2a8c492b07a3eaa1e311b4b30d389246 (git) Affected: dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 , < fdb880a7d575efe8b5c7b5b819b96d9251a3937f (git) Affected: dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 , < 261d7c7610b4b2f476382c88a2d1ae0cc5e07add (git) Affected: dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 , < ba04715ee672c336272be3ceb43bda9ffc33eb75 (git) Affected: dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 , < 0d10db8e94fcb23a799789aaa696b4d8f937e207 (git)
Linux	Linux	Affected: 3.8 Unaffected: 0 , < 3.8 (semver) Unaffected: 5.10.270 , ≤ 5.10.* (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.109 , ≤ 6.12.* (semver) Unaffected: 6.18.50 , ≤ 6.18.* (semver) Unaffected: 7.2.4 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b1d0a90a844abccdfed9fe141b5d0d654a821485",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "86b57fa3172e287bc083113507a965e6d9a46a45",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "a732c4f36a4cd79f3702391f88ebb56f2e43b0ee",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "7704f6ba2a8c492b07a3eaa1e311b4b30d389246",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "fdb880a7d575efe8b5c7b5b819b96d9251a3937f",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "261d7c7610b4b2f476382c88a2d1ae0cc5e07add",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "ba04715ee672c336272be3ceb43bda9ffc33eb75",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            },
            {
              "lessThan": "0d10db8e94fcb23a799789aaa696b4d8f937e207",
              "status": "affected",
              "version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.8"
            },
            {
              "lessThan": "3.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.270",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.109",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.50",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: Fix memory leak in brcmf_sdio_read_control()\n\nThe memory allocated for buf is not freed in some of the error paths in\nbrcmf_sdio_read_control(). Fix that by adding vfree() calls.\n\n[arend: rework as suggested by Johannes]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T11:59:06.474Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b1d0a90a844abccdfed9fe141b5d0d654a821485"
        },
        {
          "url": "https://git.kernel.org/stable/c/86b57fa3172e287bc083113507a965e6d9a46a45"
        },
        {
          "url": "https://git.kernel.org/stable/c/a732c4f36a4cd79f3702391f88ebb56f2e43b0ee"
        },
        {
          "url": "https://git.kernel.org/stable/c/7704f6ba2a8c492b07a3eaa1e311b4b30d389246"
        },
        {
          "url": "https://git.kernel.org/stable/c/fdb880a7d575efe8b5c7b5b819b96d9251a3937f"
        },
        {
          "url": "https://git.kernel.org/stable/c/261d7c7610b4b2f476382c88a2d1ae0cc5e07add"
        },
        {
          "url": "https://git.kernel.org/stable/c/ba04715ee672c336272be3ceb43bda9ffc33eb75"
        },
        {
          "url": "https://git.kernel.org/stable/c/0d10db8e94fcb23a799789aaa696b4d8f937e207"
        }
      ],
      "title": "wifi: brcmfmac: Fix memory leak in brcmf_sdio_read_control()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80949",
    "datePublished": "2026-09-11T19:42:19.707Z",
    "dateReserved": "2026-08-26T14:34:25.804Z",
    "dateUpdated": "2026-09-14T11:59:06.474Z",
    "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.

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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