{"id":"CVE-2026-90273","title":"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()…","summary":"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()…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 810ac401db1fe432020d7936a199591000de8279 < 7e4f2702bbadbde887a5d8897297720a7f037ee5","Linux >= 810ac401db1fe432020d7936a199591000de8279 < 0a47f0be6557b4a851addd430383a4dc7ee08752","Linux 5.15"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:23.883","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90273","references":[{"url":"https://git.kernel.org/stable/c/0a47f0be6557b4a851addd430383a4dc7ee08752","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7e4f2702bbadbde887a5d8897297720a7f037ee5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.837Z","epss":0.00155,"epssPercentile":0.05081,"slug":"CVE-2026-90273","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}