{"api_version":"1","generated_at":"2026-10-05T18:08:22+00:00","cve":"CVE-2026-90273","urls":{"html":"https://cve.report/CVE-2026-90273","api":"https://cve.report/api/cve/CVE-2026-90273.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-90273","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-90273"},"summary":{"title":"coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncoresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable\n\nIn the perf enable path, there are missing cases where\ncscfg_csdev_disable_active_config() is not called:\n\n  - Branch broadcast is selected but not supported by the hardware\n  - etm4_enable_hw() fails\n\nThis can lead to a leak of config_desc->active_cnt.\nFix this by properly calling cscfg_csdev_disable_active_config()\nin these error paths.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:23","updated_at":"2026-09-17 17:17:23"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/0a47f0be6557b4a851addd430383a4dc7ee08752","name":"https://git.kernel.org/stable/c/0a47f0be6557b4a851addd430383a4dc7ee08752","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7e4f2702bbadbde887a5d8897297720a7f037ee5","name":"https://git.kernel.org/stable/c/7e4f2702bbadbde887a5d8897297720a7f037ee5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90273","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90273","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 810ac401db1fe432020d7936a199591000de8279 7e4f2702bbadbde887a5d8897297720a7f037ee5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 810ac401db1fe432020d7936a199591000de8279 0a47f0be6557b4a851addd430383a4dc7ee08752 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hwtracing/coresight/coresight-etm4x-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"7e4f2702bbadbde887a5d8897297720a7f037ee5","status":"affected","version":"810ac401db1fe432020d7936a199591000de8279","versionType":"git"},{"lessThan":"0a47f0be6557b4a851addd430383a4dc7ee08752","status":"affected","version":"810ac401db1fe432020d7936a199591000de8279","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hwtracing/coresight/coresight-etm4x-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"5.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncoresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable\n\nIn the perf enable path, there are missing cases where\ncscfg_csdev_disable_active_config() is not called:\n\n  - Branch broadcast is selected but not supported by the hardware\n  - etm4_enable_hw() fails\n\nThis can lead to a leak of config_desc->active_cnt.\nFix this by properly calling cscfg_csdev_disable_active_config()\nin these error paths."}],"providerMetadata":{"dateUpdated":"2026-09-17T16:08:06.638Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/7e4f2702bbadbde887a5d8897297720a7f037ee5"},{"url":"https://git.kernel.org/stable/c/0a47f0be6557b4a851addd430383a4dc7ee08752"}],"title":"coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-90273","datePublished":"2026-09-17T16:08:06.638Z","dateReserved":"2026-09-11T19:38:34.797Z","dateUpdated":"2026-09-17T16:08:06.638Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:23","lastModifiedDate":"2026-09-17 17:17:23","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"90273","Ordinal":"1","Title":"coresight: etm4x: missing cscfg_csdev_disable_active_config() in","CVE":"CVE-2026-90273","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"90273","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ncoresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable\n\nIn the perf enable path, there are missing cases where\ncscfg_csdev_disable_active_config() is not called:\n\n  - Branch broadcast is selected but not supported by the hardware\n  - etm4_enable_hw() fails\n\nThis can lead to a leak of config_desc->active_cnt.\nFix this by properly calling cscfg_csdev_disable_active_config()\nin these error paths.","Type":"Description","Title":"coresight: etm4x: missing cscfg_csdev_disable_active_config() in"}]}}}