CVE-2024-56676

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-56676", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-27T15:00:39.845Z", "datePublished": "2024-12-28T09:46:05.536Z", "dateUpdated": "2026-05-11T20:57:06.566Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:57:06.566Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthermal: testing: Initialize some variables annoteded with _free()\n\nVariables annotated with __free() need to be initialized if the function\ncan return before they get updated for the first time or the attempt to\nfree the memory pointed to by them upon function return may crash the\nkernel.\n\nFix this issue in some places in the thermal testing code."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/thermal/testing/zone.c"], "versions": [{"version": "f6a034f2df426e279f1ecad53626bab80c04796a", "lessThan": "526c132124a62be486bad1701f7e8e92212ccec6", "status": "affected", "versionType": "git"}, {"version": "f6a034f2df426e279f1ecad53626bab80c04796a", "lessThan": "0104dcdaad3a7afd141e79a5fb817a92ada910ac", "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/thermal/testing/zone.c"], "versions": [{"version": "6.12", "status": "affected"}, {"version": "0", "lessThan": "6.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.2", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13", "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": "6.12", "versionEndExcluding": "6.12.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/526c132124a62be486bad1701f7e8e92212ccec6"}, {"url": "https://git.kernel.org/stable/c/0104dcdaad3a7afd141e79a5fb817a92ada910ac"}], "title": "thermal: testing: Initialize some variables annoteded with _free()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/thermal/testing/zone.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "526c132124a62be486bad1701f7e8e92212ccec6", "status": "affected", "version": "f6a034f2df426e279f1ecad53626bab80c04796a", "versionType": "git"}, {"lessThan": "0104dcdaad3a7afd141e79a5fb817a92ada910ac", "status": "affected", "version": "f6a034f2df426e279f1ecad53626bab80c04796a", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/thermal/testing/zone.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.12"}, {"lessThan": "6.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.13", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D8882B1B-2ABC-4838-AC1D-DBDBB5764776", "versionEndExcluding": "6.12.2", "versionStartIncluding": "6.12", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthermal: testing: Initialize some variables annoteded with _free()\n\nVariables annotated with __free() need to be initialized if the function\ncan return before they get updated for the first time or the attempt to\nfree the memory pointed to by them upon function return may crash the\nkernel.\n\nFix this issue in some places in the thermal testing code."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: thermal: testing: Initialize some variables annotated with _free() Las variables anotadas con __free() deben inicializarse si la funci\u00f3n puede regresar antes de que se actualicen por primera vez o el intento de liberar la memoria a la que apuntan al regresar la funci\u00f3n puede hacer que el kernel se bloquee. Corrija este problema en algunos lugares del c\u00f3digo de pruebas t\u00e9rmicas."}], "id": "CVE-2024-56676", "lastModified": "2026-06-17T08:12:43.390", "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": "2024-12-28T10:15:06.113", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0104dcdaad3a7afd141e79a5fb817a92ada910ac"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/526c132124a62be486bad1701f7e8e92212ccec6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-909"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: thermal: testing: Initialize some variables annoteded with _free()", "id": "2334691", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334691"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nthermal: testing: Initialize some variables annoteded with _free()\nVariables annotated with __free() need to be initialized if the function\ncan return before they get updated for the first time or the attempt to\nfree the memory pointed to by them upon function return may crash the\nkernel.\nFix this issue in some places in the thermal testing code."], "name": "CVE-2024-56676", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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": "2024-12-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56676\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56676\nhttps://lore.kernel.org/linux-cve-announce/2024122829-CVE-2024-56676-0d17@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-12T22:15:40.133168+00:00", "updated": "2025-07-12T22:15:40.133241+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}