CVE-2026-80949

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80949", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.804Z", "datePublished": "2026-09-11T19:42:19.707Z", "dateUpdated": "2026-10-19T08:45:33.207Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:45:33.207Z"}, "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]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"], "versions": [{"version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969", "lessThan": "b1d0a90a844abccdfed9fe141b5d0d654a821485", "status": "affected", "versionType": "git"}, {"version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969", "lessThan": "86b57fa3172e287bc083113507a965e6d9a46a45", "status": "affected", "versionType": "git"}, {"version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969", "lessThan": "a732c4f36a4cd79f3702391f88ebb56f2e43b0ee", "status": "affected", "versionType": "git"}, {"version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969", "lessThan": "7704f6ba2a8c492b07a3eaa1e311b4b30d389246", "status": "affected", "versionType": "git"}, {"version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969", "lessThan": "fdb880a7d575efe8b5c7b5b819b96d9251a3937f", "status": "affected", "versionType": "git"}, {"version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969", "lessThan": "261d7c7610b4b2f476382c88a2d1ae0cc5e07add", "status": "affected", "versionType": "git"}, {"version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969", "lessThan": "ba04715ee672c336272be3ceb43bda9ffc33eb75", "status": "affected", "versionType": "git"}, {"version": "dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969", "lessThan": "0d10db8e94fcb23a799789aaa696b4d8f937e207", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"], "versions": [{"version": "3.8", "status": "affected"}, {"version": "0", "lessThan": "3.8", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.270", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "5.10.270"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "5.15.221"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "7.3"}]}]}], "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"}}}}

{}

{"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", "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": "2026-10-19T09:17:26.257", "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"}

{"bugzilla": {"description": "kernel: Linux kernel: brcmfmac Wi-Fi driver memory leak leading to denial of service", "id": "2532429", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532429"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's brcmfmac Wi-Fi driver. The memory allocated for a buffer is not properly released in certain error handling paths within the `brcmf_sdio_read_control()` function. This improper memory management can lead to a memory leak, potentially causing system instability or a denial of service (DoS) due to resource exhaustion."], "name": "CVE-2026-80949", "public_date": "2026-09-11T19:42:19Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80949\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80949\nhttps://git.kernel.org/stable/c/0d10db8e94fcb23a799789aaa696b4d8f937e207\nhttps://git.kernel.org/stable/c/261d7c7610b4b2f476382c88a2d1ae0cc5e07add\nhttps://git.kernel.org/stable/c/ba04715ee672c336272be3ceb43bda9ffc33eb75\nhttps://git.kernel.org/stable/c/fdb880a7d575efe8b5c7b5b819b96d9251a3937f"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969,fdb880a7d575efe8b5c7b5b819b96d9251a3937f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969,261d7c7610b4b2f476382c88a2d1ae0cc5e07add)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969,ba04715ee672c336272be3ceb43bda9ffc33eb75)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969,0d10db8e94fcb23a799789aaa696b4d8f937e207)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "3.8"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,3.8)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.109,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.50,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.4,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-14T00:15:04.199359+00:00", "updated": "2026-09-21T03:45:08.573635+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}