CVE-2026-43079

{"id": "CVE-2026-43079", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-43079", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-06T15:28:04.991226Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3", "lessThan": "d18da11a5e21eac7651c8897e5e0908f6c2bc9de", "versionType": "git"}, {"status": "affected", "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3", "lessThan": "dfcba8c8674cead6c88a2f269b71aa4efd3d384a", "versionType": "git"}, {"status": "affected", "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3", "lessThan": "cfab2c817d2e7e0bee98d66850246ce842ed5f18", "versionType": "git"}, {"status": "affected", "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3", "lessThan": "6cfc187d85f18f976d0fe527d4c6f6171542cc19", "versionType": "git"}, {"status": "affected", "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3", "lessThan": "f34feda8e0c9535fee3f8870ce8bab53c2798f71", "versionType": "git"}, {"status": "affected", "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3", "lessThan": "7a2cb02437d92ed14fe494d8994056d5bd2c72b4", "versionType": "git"}, {"status": "affected", "version": "edae1f06c2cda41edffc93de6aedc8ba8dc883c3", "lessThan": "7b568e9eba2fad89a696f22f0413d44cf4a1f892", "versionType": "git"}], "programFiles": ["arch/x86/events/intel/uncore_discovery.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.13"}, {"status": "unaffected", "version": "0", "lessThan": "5.13", "versionType": "semver"}, {"status": "unaffected", "version": "5.15.209", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.175", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.136", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.83", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.24", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.14", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["arch/x86/events/intel/uncore_discovery.c"], "defaultStatus": "affected"}]}], "published": "2026-05-06T10:16:20.990", "references": [{"url": "https://git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d18da11a5e21eac7651c8897e5e0908f6c2bc9de", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/dfcba8c8674cead6c88a2f269b71aa4efd3d384a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798f71", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/intel/uncore: Skip discovery table for offline dies\n\nThis warning can be triggered if NUMA is disabled and the system\nboots with fewer CPUs than the number of CPUs in die 0.\n\nWARNING: CPU: 9 PID: 7257 at uncore.c:1157 uncore_pci_pmu_register+0x136/0x160 [intel_uncore]\n\nCurrently, the discovery table continues to be parsed even if all CPUs\nin the associated die are offline. This can lead to an array overflow\nat \"pmu->boxes[die] = box\" in uncore_pci_pmu_register(), which may\ntrigger the warning above or cause other issues."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nperf/x86/intel/uncore: Omitir tabla de descubrimiento para dies fuera de l\u00ednea\n\nEsta advertencia puede activarse si NUMA est\u00e1 deshabilitado y el sistema arranca con menos CPUs que el n\u00famero de CPUs en el die 0.\n\nADVERTENCIA: CPU: 9 PID: 7257 en uncore.c:1157 uncore_pci_pmu_register+0x136/0x160 [intel_uncore]\n\nActualmente, la tabla de descubrimiento contin\u00faa siendo analizada incluso si todas las CPUs en el die asociado est\u00e1n fuera de l\u00ednea. Esto puede llevar a un desbordamiento de array en \u2019pmu -> boxes[die] = box\u2019 en uncore_pci_pmu_register(), lo que puede activar la advertencia anterior o causar otros problemas."}], "lastModified": "2026-11-11T21:10:00.200", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9F743086-ED4F-414C-BC47-C10ACDAA072C", "versionEndExcluding": "5.15.209", "versionStartIncluding": "5.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "92385813-D91D-480D-83A1-F423D2CBB2BA", "versionEndExcluding": "6.1.175", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0A0F1E9A-F127-4699-A014-9E08441C9A14", "versionEndExcluding": "6.6.136", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F0AE5B5-23AC-4DCC-B37A-51CA1DAE7BA8", "versionEndExcluding": "6.12.83", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8126B8B8-6D0B-4443-86C1-672AEE893555", "versionEndExcluding": "6.18.24", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D6A8A074-BBF4-4803-ABED-519A839435BB", "versionEndExcluding": "6.19.14", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "58A9FEFF-C040-420D-8F0A-BFDAAA1DF258"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1D2315C0-D46F-4F85-9754-F9E5E11374A6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "512EE3A8-A590-4501-9A94-5D4B268D6138"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}