{"id":"CVE-2026-80949","title":"wifi: brcmfmac: Fix memory leak in brcmf_sdio_read_control()","summary":"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 tha…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-772"],"vendor":"Linux","product":"Linux","affected":["Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < b1d0a90a844abccdfed9fe141b5d0d654a821485","Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < 86b57fa3172e287bc083113507a965e6d9a46a45","Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < a732c4f36a4cd79f3702391f88ebb56f2e43b0ee","Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < 7704f6ba2a8c492b07a3eaa1e311b4b30d389246","Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < fdb880a7d575efe8b5c7b5b819b96d9251a3937f","Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < 261d7c7610b4b2f476382c88a2d1ae0cc5e07add","Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < ba04715ee672c336272be3ceb43bda9ffc33eb75","Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < 0d10db8e94fcb23a799789aaa696b4d8f937e207","Linux 3.8"],"published":"2026-09-11","updated":"2026-10-19","sourceUpdated":"2026-10-19T08:45:33.207Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80949","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"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80949.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80949"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532429"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80949"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80949"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80949.mbox"}],"tags":["cve.org","csaf","vex","red-hat"],"epss":0.00177,"epssPercentile":0.07171,"ingestedAt":"2026-09-14T15:23:07.455Z","slug":"CVE-2026-80949","body":"## Overview\n\nIn 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]\n\n## Affected\n\n- `Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < b1d0a90a844abccdfed9fe141b5d0d654a821485`\n- `Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < 86b57fa3172e287bc083113507a965e6d9a46a45`\n- `Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < a732c4f36a4cd79f3702391f88ebb56f2e43b0ee`\n- `Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < 7704f6ba2a8c492b07a3eaa1e311b4b30d389246`\n- `Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < fdb880a7d575efe8b5c7b5b819b96d9251a3937f`\n- `Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < 261d7c7610b4b2f476382c88a2d1ae0cc5e07add`\n- `Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < ba04715ee672c336272be3ceb43bda9ffc33eb75`\n- `Linux >= dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969 < 0d10db8e94fcb23a799789aaa696b4d8f937e207`\n- `Linux 3.8`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80949.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":204250,"id":"CVE-2026-80949","ts":1789490240620,"field":"cvss","old":null,"new":"5.5"},{"seq":204249,"id":"CVE-2026-80949","ts":1789490240620,"field":"severity","old":"none","new":"medium"},{"seq":147255,"id":"CVE-2026-80949","ts":1789270204787,"field":"cvss","old":null,"new":"5.3"},{"seq":147254,"id":"CVE-2026-80949","ts":1789270204787,"field":"severity","old":"none","new":"medium"},{"seq":109012,"id":"CVE-2026-80949","ts":1789183729947,"field":"cvss","old":null,"new":"5.3"},{"seq":109011,"id":"CVE-2026-80949","ts":1789183729947,"field":"severity","old":"none","new":"medium"}]}