CVE-2026-31782

{"id": "CVE-2026-31782", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "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": "ec980e4facef8110f6fce27e5b6344660117f01f", "lessThan": "e435a30ca6fe14c9611b1fc731c98a6d28410247", "versionType": "git"}, {"status": "affected", "version": "ec980e4facef8110f6fce27e5b6344660117f01f", "lessThan": "bfee04838f636d064bc92075c65c95f739003804", "versionType": "git"}, {"status": "affected", "version": "ec980e4facef8110f6fce27e5b6344660117f01f", "lessThan": "dbde07f06226438cd2cf1179745fa1bec5d8914a", "versionType": "git"}], "programFiles": ["arch/x86/events/intel/core.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.16"}, {"status": "unaffected", "version": "0", "lessThan": "6.16", "versionType": "semver"}, {"status": "unaffected", "version": "6.18.22", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.12", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["arch/x86/events/intel/core.c"], "defaultStatus": "affected"}]}], "published": "2026-05-01T15:16:41.707", "references": [{"url": "https://git.kernel.org/stable/c/bfee04838f636d064bc92075c65c95f739003804", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/dbde07f06226438cd2cf1179745fa1bec5d8914a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e435a30ca6fe14c9611b1fc731c98a6d28410247", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86: Fix potential bad container_of in intel_pmu_hw_config\n\nAuto counter reload may have a group of events with software events\npresent within it. The software event PMU isn't the x86_hybrid_pmu and\na container_of operation in intel_pmu_set_acr_caused_constr (via the\nhybrid helper) could cause out of bound memory reads. Avoid this by\nguarding the call to intel_pmu_set_acr_caused_constr with an\nis_x86_event check."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nperf/x86: Corregir un potencial \u2019container_of\u2019 incorrecto en \u2019intel_pmu_hw_config\u2019\n\nLa recarga autom\u00e1tica del contador puede tener un grupo de eventos con eventos de software presentes en \u00e9l. La PMU de eventos de software no es la \u2019x86_hybrid_pmu\u2019 y una operaci\u00f3n \u2019container_of\u2019 en \u2019intel_pmu_set_acr_caused_constr\u2019 (a trav\u00e9s del asistente h\u00edbrido) podr\u00eda causar lecturas de memoria fuera de l\u00edmites. Evitar esto protegiendo la llamada a \u2019intel_pmu_set_acr_caused_constr\u2019 con una verificaci\u00f3n \u2019is_x86_event\u2019."}], "lastModified": "2026-11-11T21:10:00.200", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A373E4BD-44BD-4FB8-8A1D-03D3759ABECA", "versionEndExcluding": "6.18.22", "versionStartIncluding": "6.16.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0A2B9540-02D5-41B4-B16A-82AF66FD4F36", "versionEndExcluding": "6.19.12", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6238B17D-C12B-458F-A138-97039BFC4595"}, {"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"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}