{ "document":{ "aggregate_severity":{ "namespace":"https://nvd.nist.gov/vuln-metrics/cvss", "text":"MEDIUM" }, "category":"csaf_vex", "csaf_version":"2.0", "distribution":{ "tlp":{ "label":"WHITE", "url":"https:/www.first.org/tlp/" } }, "lang":"en", "notes":[ { "text":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/intel: Fix KASAN global-out-of-bounds warning\n\nWhen running \"perf mem record\" command on CWF, the below KASAN\nglobal-out-of-bounds warning is seen.\n\n ==================================================================\n BUG: KASAN: global-out-of-bounds in cmt_latency_data+0x176/0x1b0\n Read of size 4 at addr ffffffffb721d000 by task dtlb/9850\n\n Call Trace:\n\n kasan_report+0xb8/0xf0\n cmt_latency_data+0x176/0x1b0\n setup_arch_pebs_sample_data+0xf49/0x2560\n intel_pmu_drain_arch_pebs+0x577/0xb00\n handle_pmi_common+0x6c4/0xc80\n\nThe issue is caused by below code in __grt_latency_data(). The code\ntries to access x86_hybrid_pmu structure which doesn't exist on\nnon-hybrid platform like CWF.\n\n WARN_ON_ONCE(hybrid_pmu(event->pmu)->pmu_type == hybrid_big)\n\nSo add is_hybrid() check before calling this WARN_ON_ONCE to fix the\nglobal-out-of-bounds access issue.", "category":"general", "title":"Synopsis" } ], "publisher":null, "references":[ { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40359" }, { "summary":"CVE-2025-40359 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/cve/2025/csaf-openeuler-cve-2025-40359.json" }, { "summary":"openEuler-SA-2026-1761", "category":"self", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1761" }, { "summary":"CVE-2025-40359", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-40359&packageName=kernel" } ], "title":"openEuler cve CVE-2025-40359", "tracking":{ "initial_release_date":"2026-03-30T15:49:39+08:00", "revision_history":[ { "date":"2026-03-30T15:49:39+08:00", "summary":"Initial", "number":"1.0.0" } ], "generator":{ "date":"2026-03-30T15:49:39+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2026-03-30T15:49:39+08:00", "id":"CVE-2025-40359", "version":"1.0.0", "status":"interim" } }, "product_tree":{ "branches":[ { "name":"openEuler", "category":"vendor", "branches":[ { "name":"openEuler", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP2" }, "product_id":"openEuler-24.03-LTS-SP2", "name":"openEuler-24.03-LTS-SP2" }, "name":"openEuler-24.03-LTS-SP2", "category":"product_version" } ], "category":"product_name" }, { "name":"aarch64", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP2" }, "product_id":"bpftool-6.6.0-144.0.0.140.oe2403sp2.aarch64.rpm", 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setup_arch_pebs_sample_data+0xf49/0x2560\n intel_pmu_drain_arch_pebs+0x577/0xb00\n handle_pmi_common+0x6c4/0xc80\n\nThe issue is caused by below code in __grt_latency_data(). The code\ntries to access x86_hybrid_pmu structure which doesn't exist on\nnon-hybrid platform like CWF.\n\n WARN_ON_ONCE(hybrid_pmu(event->pmu)->pmu_type == hybrid_big)\n\nSo add is_hybrid() check before calling this WARN_ON_ONCE to fix the\nglobal-out-of-bounds access issue.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":{ "$ref":"$.vulnerabilities[0].product_status.fixed" } }, "remediations":[ { "product_ids":{ "$ref":"$.vulnerabilities[0].product_status.fixed" }, "details":"kernel security update", "category":"vendor_fix", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1761" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"MEDIUM", "baseScore":5.5, "vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version":"3.1" }, "products":{ "$ref":"$.vulnerabilities[0].product_status.fixed" } } ], "threats":[ { "details":"Medium", "category":"impact" } ], "title":"CVE-2025-40359" } ] }