CVE-2026-43069

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43069", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.982Z", "datePublished": "2026-05-05T15:23:28.120Z", "dateUpdated": "2026-05-11T22:17:07.130Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T22:17:07.130Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_ll: Fix firmware leak on error path\n\nSmatch reports:\n\ndrivers/bluetooth/hci_ll.c:587 download_firmware() warn:\n'fw' from request_firmware() not released on lines: 544.\n\nIn download_firmware(), if request_firmware() succeeds but the returned\nfirmware content is invalid (no data or zero size), the function returns\nwithout releasing the firmware, resulting in a resource leak.\n\nFix this by calling release_firmware() before returning when\nrequest_firmware() succeeded but the firmware content is invalid."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/bluetooth/hci_ll.c"], "versions": [{"version": "371805522f870986144fcd88727a47858e364a2c", "lessThan": "95e8601af227b2b4390eecf8db6abdb9f6a91f17", "status": "affected", "versionType": "git"}, {"version": "371805522f870986144fcd88727a47858e364a2c", "lessThan": "e6d95488c8c964d1df0d3e1db44c958706311e86", "status": "affected", "versionType": "git"}, {"version": "371805522f870986144fcd88727a47858e364a2c", "lessThan": "b2dfbf1b5ff192cefd49574b951a4af9ddd32213", "status": "affected", "versionType": "git"}, {"version": "371805522f870986144fcd88727a47858e364a2c", "lessThan": "28904375d54b436a757641fb0331537778c0de5a", "status": "affected", "versionType": "git"}, {"version": "371805522f870986144fcd88727a47858e364a2c", "lessThan": "5213ef54528dd1ac79b846e30d8f72ce092794aa", "status": "affected", "versionType": "git"}, {"version": "371805522f870986144fcd88727a47858e364a2c", "lessThan": "9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b", "status": "affected", "versionType": "git"}, {"version": "371805522f870986144fcd88727a47858e364a2c", "lessThan": "a7803df606a7d22e896b030f619e1d9d20ae0c6b", "status": "affected", "versionType": "git"}, {"version": "371805522f870986144fcd88727a47858e364a2c", "lessThan": "31148a7be723aa9f2e8fbd62424825ab8d577973", "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/bluetooth/hci_ll.c"], "versions": [{"version": "4.12", "status": "affected"}, {"version": "0", "lessThan": "4.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.253", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.203", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.168", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.131", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.80", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.21", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.11", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "4.12", "versionEndExcluding": "5.10.253"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.15.203"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.1.168"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.6.131"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.12.80"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.18.21"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.19.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/95e8601af227b2b4390eecf8db6abdb9f6a91f17"}, {"url": "https://git.kernel.org/stable/c/e6d95488c8c964d1df0d3e1db44c958706311e86"}, {"url": "https://git.kernel.org/stable/c/b2dfbf1b5ff192cefd49574b951a4af9ddd32213"}, {"url": "https://git.kernel.org/stable/c/28904375d54b436a757641fb0331537778c0de5a"}, {"url": "https://git.kernel.org/stable/c/5213ef54528dd1ac79b846e30d8f72ce092794aa"}, {"url": "https://git.kernel.org/stable/c/9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b"}, {"url": "https://git.kernel.org/stable/c/a7803df606a7d22e896b030f619e1d9d20ae0c6b"}, {"url": "https://git.kernel.org/stable/c/31148a7be723aa9f2e8fbd62424825ab8d577973"}], "title": "Bluetooth: hci_ll: Fix firmware leak on error path", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/bluetooth/hci_ll.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "95e8601af227b2b4390eecf8db6abdb9f6a91f17", "status": "affected", "version": "371805522f870986144fcd88727a47858e364a2c", "versionType": "git"}, {"lessThan": "e6d95488c8c964d1df0d3e1db44c958706311e86", "status": "affected", "version": "371805522f870986144fcd88727a47858e364a2c", "versionType": "git"}, {"lessThan": "b2dfbf1b5ff192cefd49574b951a4af9ddd32213", "status": "affected", "version": "371805522f870986144fcd88727a47858e364a2c", "versionType": "git"}, {"lessThan": "28904375d54b436a757641fb0331537778c0de5a", "status": "affected", "version": "371805522f870986144fcd88727a47858e364a2c", "versionType": "git"}, {"lessThan": "5213ef54528dd1ac79b846e30d8f72ce092794aa", "status": "affected", "version": "371805522f870986144fcd88727a47858e364a2c", "versionType": "git"}, {"lessThan": "9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b", "status": "affected", "version": "371805522f870986144fcd88727a47858e364a2c", "versionType": "git"}, {"lessThan": "a7803df606a7d22e896b030f619e1d9d20ae0c6b", "status": "affected", "version": "371805522f870986144fcd88727a47858e364a2c", "versionType": "git"}, {"lessThan": "31148a7be723aa9f2e8fbd62424825ab8d577973", "status": "affected", "version": "371805522f870986144fcd88727a47858e364a2c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/bluetooth/hci_ll.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.12"}, {"lessThan": "4.12", "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": "6.1.168", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.131", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.80", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.21", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.11", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C7307BD3-C434-4557-91D2-ADE06A1D3C6F", "versionEndExcluding": "5.10.253", "versionStartIncluding": "4.12", "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": "E2DDDCA1-6DAB-4018-B920-8F045DDD8D3B", "versionEndExcluding": "6.1.168", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CE6ED4D4-0046-4573-BFA9-D64143B6A89F", "versionEndExcluding": "6.6.131", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "97EB19EC-A11E-49C6-9D2F-6F6EC6CB98B6", "versionEndExcluding": "6.12.80", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "ED39847A-3B46-4729-B7CA-B2C30B9FA8FE", "versionEndExcluding": "6.18.21", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4CA2E747-A9EC-4518-9AA2-B4247FC748B7", "versionEndExcluding": "6.19.11", "versionStartIncluding": "6.19", "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}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_ll: Fix firmware leak on error path\n\nSmatch reports:\n\ndrivers/bluetooth/hci_ll.c:587 download_firmware() warn:\n'fw' from request_firmware() not released on lines: 544.\n\nIn download_firmware(), if request_firmware() succeeds but the returned\nfirmware content is invalid (no data or zero size), the function returns\nwithout releasing the firmware, resulting in a resource leak.\n\nFix this by calling release_firmware() before returning when\nrequest_firmware() succeeded but the firmware content is invalid."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nBluetooth: hci_ll: Corregir fuga de firmware en la ruta de error\n\nSmatch informa:\n\ndrivers/bluetooth/hci_ll.c:587 download_firmware() advierte:\n\u2019fw\u2019 de request_firmware() no liberado en las l\u00edneas: 544.\n\nEn download_firmware(), si request_firmware() tiene \u00e9xito pero el contenido del firmware devuelto es inv\u00e1lido (sin datos o tama\u00f1o cero), la funci\u00f3n retorna sin liberar el firmware, lo que resulta en una fuga de recursos.\n\nSolucionar esto llamando a release_firmware() antes de retornar cuando request_firmware() tuvo \u00e9xito pero el contenido del firmware es inv\u00e1lido."}], "id": "CVE-2026-43069", "lastModified": "2026-11-11T21:10:00.200", "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": "2026-05-05T16:16:16.197", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/28904375d54b436a757641fb0331537778c0de5a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/31148a7be723aa9f2e8fbd62424825ab8d577973"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5213ef54528dd1ac79b846e30d8f72ce092794aa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/95e8601af227b2b4390eecf8db6abdb9f6a91f17"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a7803df606a7d22e896b030f619e1d9d20ae0c6b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b2dfbf1b5ff192cefd49574b951a4af9ddd32213"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e6d95488c8c964d1df0d3e1db44c958706311e86"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: Bluetooth: hci_ll: Fix firmware leak on error path", "id": "2466808", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2466808"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/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 Bluetooth subsystem, specifically in the hci_ll component. A local user could exploit this vulnerability when the system attempts to download firmware. If the firmware content is invalid or empty after a successful request, the system fails to release the allocated resources, leading to a resource leak. This continuous resource depletion could eventually result in a Denial of Service (DoS) condition, making the system unstable or unresponsive."], "name": "CVE-2026-43069", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43069\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43069\nhttps://lore.kernel.org/linux-cve-announce/2026050533-CVE-2026-43069-add7@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[371805522f870986144fcd88727a47858e364a2c,95e8601af227b2b4390eecf8db6abdb9f6a91f17)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[371805522f870986144fcd88727a47858e364a2c,e6d95488c8c964d1df0d3e1db44c958706311e86)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[371805522f870986144fcd88727a47858e364a2c,b2dfbf1b5ff192cefd49574b951a4af9ddd32213)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[371805522f870986144fcd88727a47858e364a2c,28904375d54b436a757641fb0331537778c0de5a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[371805522f870986144fcd88727a47858e364a2c,5213ef54528dd1ac79b846e30d8f72ce092794aa)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[371805522f870986144fcd88727a47858e364a2c,9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[371805522f870986144fcd88727a47858e364a2c,a7803df606a7d22e896b030f619e1d9d20ae0c6b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[371805522f870986144fcd88727a47858e364a2c,31148a7be723aa9f2e8fbd62424825ab8d577973)"}}], "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": "generic", "value": "4.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.253,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.203,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.168,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.131,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.80,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.21,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.11,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "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": "2026-05-05T17:30:05.993202+00:00", "updated": "2026-05-29T20:00:05.737202+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}