{"id":"CVE-2026-90273","summary":"coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable","details":"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-\u003eactive_cnt.\nFix this by properly calling cscfg_csdev_disable_active_config()\nin these error paths.","modified":"2026-09-18T03:48:37.037063941Z","published":"2026-09-17T16:08:06.638Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90273.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/0a47f0be6557b4a851addd430383a4dc7ee08752"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7e4f2702bbadbde887a5d8897297720a7f037ee5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90273.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90273"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"810ac401db1fe432020d7936a199591000de8279"},{"fixed":"7e4f2702bbadbde887a5d8897297720a7f037ee5"},{"fixed":"0a47f0be6557b4a851addd430383a4dc7ee08752"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90273.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.15.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90273.json"}}],"schema_version":"1.9.0"}