{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31782", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.141Z", "datePublished": "2026-05-01T14:15:08.586Z", "dateUpdated": "2026-05-01T14:15:08.586Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-01T14:15:08.586Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/events/intel/core.c"], "versions": [{"version": "ec980e4facef8110f6fce27e5b6344660117f01f", "lessThan": "e435a30ca6fe14c9611b1fc731c98a6d28410247", "status": "affected", "versionType": "git"}, {"version": "ec980e4facef8110f6fce27e5b6344660117f01f", "lessThan": "bfee04838f636d064bc92075c65c95f739003804", "status": "affected", "versionType": "git"}, {"version": "ec980e4facef8110f6fce27e5b6344660117f01f", "lessThan": "dbde07f06226438cd2cf1179745fa1bec5d8914a", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/events/intel/core.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.22", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.12", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.16", "versionEndExcluding": "6.18.22"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.19.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e435a30ca6fe14c9611b1fc731c98a6d28410247"}, {"url": "https://git.kernel.org/stable/c/bfee04838f636d064bc92075c65c95f739003804"}, {"url": "https://git.kernel.org/stable/c/dbde07f06226438cd2cf1179745fa1bec5d8914a"}], "title": "perf/x86: Fix potential bad container_of in intel_pmu_hw_config", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-31782", "lastModified": "2026-05-01T15:24:14.893", "metrics": {}, "published": "2026-05-01T15:16:41.707", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bfee04838f636d064bc92075c65c95f739003804"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dbde07f06226438cd2cf1179745fa1bec5d8914a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e435a30ca6fe14c9611b1fc731c98a6d28410247"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{}