CVE-2024-46822

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As such, a valid ID is needed.\n\nIf an MPIDR check fails in acpi_map_gic_cpu_interface() it is possible\nfor the entry in cpu_madt_gicc[cpu] == NULL. This function would\nthen cause a NULL pointer dereference. 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["arch/arm64/include/asm/acpi.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "f57769ff6fa7f97f1296965f20e8a2bb3ee9fd0f", "status": "affected", "version": "0be7320a635c2e434e8b67e0e9474a85ceb421c4", "versionType": "git"}, {"lessThan": "4c3b21204abb4fa3ab310fbbb5cf7f0e85f3a1bc", "status": "affected", "version": "0be7320a635c2e434e8b67e0e9474a85ceb421c4", "versionType": "git"}, {"lessThan": "945be49f4e832a9184c313fdf8917475438a795b", "status": "affected", "version": "0be7320a635c2e434e8b67e0e9474a85ceb421c4", "versionType": "git"}, {"lessThan": "40cae0df42e5e7f7a1c0f32deed9c4027c1ba94e", "status": "affected", "version": "0be7320a635c2e434e8b67e0e9474a85ceb421c4", "versionType": "git"}, {"lessThan": "62ca6d3a905b4c40cd942f3cc645a6718f8bc7e7", "status": "affected", "version": "0be7320a635c2e434e8b67e0e9474a85ceb421c4", "versionType": "git"}, {"lessThan": "bc7fbb37e3d2df59336eadbd6a56be632e3c7df7", "status": "affected", "version": "0be7320a635c2e434e8b67e0e9474a85ceb421c4", "versionType": "git"}, {"lessThan": "2488444274c70038eb6b686cba5f1ce48ebb9cdd", "status": "affected", "version": "0be7320a635c2e434e8b67e0e9474a85ceb421c4", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["arch/arm64/include/asm/acpi.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.7"}, {"lessThan": "3.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.284", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.226", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.167", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.110", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.51", "versionType": "semver"}, {"lessThanOrEqual": "6.10.*", "status": "unaffected", "version": "6.10.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B1C17E9C-479F-4AE4-8344-B7A213DE3E83", "versionEndExcluding": "5.4.284", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "864FC17C-501A-4823-A643-6F35D65D8A97", "versionEndExcluding": "5.10.226", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "043405A4-25FE-45D4-A7BB-2A0C3B7D17C1", "versionEndExcluding": "5.15.167", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6B1A95FC-7E7E-428B-BB59-F76640C652AE", "versionEndExcluding": "6.1.110", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E4529134-BAC4-4776-840B-304009E181A0", "versionEndExcluding": "6.6.51", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "ACDEE48C-137A-4731-90D0-A675865E1BED", "versionEndExcluding": "6.10.10", "versionStartIncluding": "6.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: acpi: Harden get_cpu_for_acpi_id() against missing CPU entry\n\nIn a review discussion of the changes to support vCPU hotplug where\na check was added on the GICC being enabled if was online, it was\nnoted that there is need to map back to the cpu and use that to index\ninto a cpumask. As such, a valid ID is needed.\n\nIf an MPIDR check fails in acpi_map_gic_cpu_interface() it is possible\nfor the entry in cpu_madt_gicc[cpu] == NULL. This function would\nthen cause a NULL pointer dereference. Whilst a path to trigger\nthis has not been established, harden this caller against the\npossibility."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: arm64: acpi: endurecer get_cpu_for_acpi_id() contra la entrada de CPU faltante En una discusi\u00f3n de revisi\u00f3n de los cambios para soportar vCPU hotplug donde se agreg\u00f3 una verificaci\u00f3n en el GICC que se habilita si est\u00e1 en l\u00ednea, se observ\u00f3 que es necesario volver a mapear a la CPU y usar eso para indexar en una cpumask. Como tal, se necesita una ID v\u00e1lida. Si una verificaci\u00f3n MPIDR falla en acpi_map_gic_cpu_interface() es posible que la entrada en cpu_madt_gicc[cpu] == NULL. Esta funci\u00f3n causar\u00eda una desreferencia de puntero NULL. Si bien no se ha establecido una ruta para activar esto, endurezca este llamador contra la posibilidad."}], "id": "CVE-2024-46822", "lastModified": "2026-06-17T07:56:01.390", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-46822", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-29T14:13:38.744969Z", "version": "2.0.3"}}]}, "published": "2024-09-27T13:15:14.830", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2488444274c70038eb6b686cba5f1ce48ebb9cdd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/40cae0df42e5e7f7a1c0f32deed9c4027c1ba94e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4c3b21204abb4fa3ab310fbbb5cf7f0e85f3a1bc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/62ca6d3a905b4c40cd942f3cc645a6718f8bc7e7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/945be49f4e832a9184c313fdf8917475438a795b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bc7fbb37e3d2df59336eadbd6a56be632e3c7df7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f57769ff6fa7f97f1296965f20e8a2bb3ee9fd0f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2025:6966", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:6966", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}], "bugzilla": {"description": "kernel: arm64: acpi: Harden get_cpu_for_acpi_id() against missing CPU entry", "id": "2315174", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2315174"}, "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": "verified"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\narm64: acpi: Harden get_cpu_for_acpi_id() against missing CPU entry\nIn a review discussion of the changes to support vCPU hotplug where\na check was added on the GICC being enabled if was online, it was\nnoted that there is need to map back to the cpu and use that to index\ninto a cpumask. As such, a valid ID is needed.\nIf an MPIDR check fails in acpi_map_gic_cpu_interface() it is possible\nfor the entry in cpu_madt_gicc[cpu] == NULL. This function would\nthen cause a NULL pointer dereference. Whilst a path to trigger\nthis has not been established, harden this caller against the\npossibility."], "name": "CVE-2024-46822", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-09-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-46822\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-46822\nhttps://lore.kernel.org/linux-cve-announce/2024092749-CVE-2024-46822-b901@gregkh/T"], "threat_severity": "Moderate"}

{}