CVE-2024-49862

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no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The off-by-one yields an out-of-bounds read of a full struct rapl_primitive_info past rpi_msr/rpi_tpmi, whose unvalidated ->id then indexes rd->regs[] out of bounds and produces a register handle that is read and returned to userspace through world-readable sysfs \u2014 an unbounded disclosure chain, not a few-byte bounded read.\nI:N - The unprivileged-reachable path is read-only; rapl_read_data_raw() writes nothing to kernel memory, and the only OOB-influenced register write lives behind root-only sysfs store handlers.\nA:H - An out-of-range rpi->id feeding rd->regs[] can yield a garbage MMIO handle that tpmi_rapl_read_raw() dereferences with a bare readq() behind only a NULL check, producing an oops and kernel crash."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/powercap/intel_rapl_common.c"], "versions": [{"version": "98ff639a7289067247b3ef9dd5d1e922361e7365", "lessThan": "288cbc505e2046638c615c36357cb78bc9fee1e0", "status": "affected", "versionType": "git"}, {"version": "98ff639a7289067247b3ef9dd5d1e922361e7365", "lessThan": "851e7f7f14a15f4e47b7d0f70d5c4a2b95b824d6", "status": "affected", "versionType": "git"}, {"version": "98ff639a7289067247b3ef9dd5d1e922361e7365", "lessThan": "6a34f3b0d7f11fb6ed72da315fd2360abd9c0737", "status": "affected", "versionType": "git"}, {"version": "98ff639a7289067247b3ef9dd5d1e922361e7365", "lessThan": "95f6580352a7225e619551febb83595bcb77ab17", "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/powercap/intel_rapl_common.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.54", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.13", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.2", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12", "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": "6.5", "versionEndExcluding": "6.6.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.10.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.11.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.12"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/288cbc505e2046638c615c36357cb78bc9fee1e0"}, {"url": "https://git.kernel.org/stable/c/851e7f7f14a15f4e47b7d0f70d5c4a2b95b824d6"}, {"url": "https://git.kernel.org/stable/c/6a34f3b0d7f11fb6ed72da315fd2360abd9c0737"}, {"url": "https://git.kernel.org/stable/c/95f6580352a7225e619551febb83595bcb77ab17"}], "title": "powercap: intel_rapl: Fix off by one in get_rpi()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-10-21T12:54:50.217091Z", "id": "CVE-2024-49862", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-21T12:55:35.960Z"}}]}}

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Thus the > needs to be >=\nto prevent an off by one access."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: powercap: intel_rapl: Arreglo de un byte en get_rpi() La matriz rp->priv->rpi es rpi_msr o rpi_tpmi, que tienen una cantidad de elementos NR_RAPL_PRIMITIVES. Por lo tanto, el > debe ser >= para evitar un acceso de un byte."}], "id": "CVE-2024-49862", "lastModified": "2026-08-04T11:20:52.803", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-49862", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-10-21T12:54:50.217091Z", "version": "2.0.3"}}]}, "published": "2024-10-21T13:15:06.893", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/288cbc505e2046638c615c36357cb78bc9fee1e0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6a34f3b0d7f11fb6ed72da315fd2360abd9c0737"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/851e7f7f14a15f4e47b7d0f70d5c4a2b95b824d6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/95f6580352a7225e619551febb83595bcb77ab17"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-193"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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