{"id":"CVE-2026-80949","state":"PUBLISHED","title":"wifi: brcmfmac: Fix memory leak in brcmf_sdio_read_control()","description":"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]","publishedAt":"2026-09-11T19:42:19.707Z","updatedAt":"2026-10-19T08:45:33.207Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"b1d0a90a844abccdfed9fe141b5d0d654a821485","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"86b57fa3172e287bc083113507a965e6d9a46a45","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"a732c4f36a4cd79f3702391f88ebb56f2e43b0ee","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"7704f6ba2a8c492b07a3eaa1e311b4b30d389246","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"fdb880a7d575efe8b5c7b5b819b96d9251a3937f","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"261d7c7610b4b2f476382c88a2d1ae0cc5e07add","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"ba04715ee672c336272be3ceb43bda9ffc33eb75","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"0d10db8e94fcb23a799789aaa696b4d8f937e207","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.8","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.109","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.50","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.4","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"]}],"references":["https://git.kernel.org/stable/c/b1d0a90a844abccdfed9fe141b5d0d654a821485","https://git.kernel.org/stable/c/86b57fa3172e287bc083113507a965e6d9a46a45","https://git.kernel.org/stable/c/a732c4f36a4cd79f3702391f88ebb56f2e43b0ee","https://git.kernel.org/stable/c/7704f6ba2a8c492b07a3eaa1e311b4b30d389246","https://git.kernel.org/stable/c/fdb880a7d575efe8b5c7b5b819b96d9251a3937f","https://git.kernel.org/stable/c/261d7c7610b4b2f476382c88a2d1ae0cc5e07add","https://git.kernel.org/stable/c/ba04715ee672c336272be3ceb43bda9ffc33eb75","https://git.kernel.org/stable/c/0d10db8e94fcb23a799789aaa696b4d8f937e207"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80949.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80949","state":"PUBLISHED","datePublished":"2026-09-11T19:42:19.707Z","dateUpdated":"2026-10-19T08:45:33.207Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.804Z"},"containers":{"cna":{"title":"wifi: brcmfmac: Fix memory leak in brcmf_sdio_read_control()","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":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"b1d0a90a844abccdfed9fe141b5d0d654a821485","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"86b57fa3172e287bc083113507a965e6d9a46a45","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"a732c4f36a4cd79f3702391f88ebb56f2e43b0ee","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"7704f6ba2a8c492b07a3eaa1e311b4b30d389246","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"fdb880a7d575efe8b5c7b5b819b96d9251a3937f","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"261d7c7610b4b2f476382c88a2d1ae0cc5e07add","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"ba04715ee672c336272be3ceb43bda9ffc33eb75","versionType":"git"},{"version":"dd43a01c5cdb811adeb09e6a2d2788f8aa0d0969","status":"affected","lessThan":"0d10db8e94fcb23a799789aaa696b4d8f937e207","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.8","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.109","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.50","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.4","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T08:45:33.207Z"},"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"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}