{"id":"CVE-2026-89472","title":"kernel: power: supply: charger-manager: register regulators before exposing sysfs (CVE-2026-89472)","summary":"A flaw was found in the Linux kernel's power supply charger-manager component. A race condition exists where the system frees charger regulators before their corresponding sysfs entries are unregistered. A local attacker can exploit this b…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":"CWE-364","vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","affected":["openshift_container_platform 4"],"published":"2026-09-11","updated":"2026-09-16","sourceUpdated":"2026-09-16T06:24:17+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89472.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89472.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89472"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532356"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89472"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89472"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89472.mbox"},{"url":"https://git.kernel.org/stable/c/6d532582ff3c420598f02945b13184c738cc1581"},{"url":"https://git.kernel.org/stable/c/86e4fa65368f3bbb506dddba8c9eedc75bd603b2"},{"url":"https://git.kernel.org/stable/c/af3ce383ba0d0d48957a22ac7058ff5698775898"},{"url":"https://git.kernel.org/stable/c/c57cb36f76eb7ced45f57af1a890d8f3a6d76342"}],"tags":["csaf","vex","red-hat","cve.org","score-dispute"],"epss":0.0017,"epssPercentile":0.05616,"scores":{"vendor":5.2,"cna":7.8},"ingestedAt":"2026-09-14T15:23:07.475Z","slug":"CVE-2026-89472","body":"## Overview\n\nA flaw was found in the Linux kernel's power supply charger-manager component. A race condition exists where the system frees charger regulators before their corresponding sysfs entries are unregistered. A local attacker can exploit this by performing a concurrent write to a charger's `externally_control` sysfs attribute, leading to a use-after-free vulnerability. This can result in system instability, crashes, or potentially arbitrary code execution.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89472.json)\n\n**kernel: power: supply: charger-manager: register regulators before exposing sysfs** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-16.\n\nNot affected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\n## Remediation\n\nRefer to the advisory for fix availability.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":205488,"id":"CVE-2026-89472","ts":1789576721866,"field":"cvss","old":"5.2","new":"5.5"},{"seq":202907,"id":"CVE-2026-89472","ts":1789403732895,"field":"cvss","old":"7.8","new":"5.2"},{"seq":202906,"id":"CVE-2026-89472","ts":1789403732895,"field":"severity","old":"high","new":"medium"},{"seq":198036,"id":"CVE-2026-89472","ts":1789384321490,"field":"cvss","old":"5.2","new":"7.8"},{"seq":198035,"id":"CVE-2026-89472","ts":1789384321490,"field":"severity","old":"medium","new":"high"},{"seq":183531,"id":"CVE-2026-89472","ts":1789356675763,"field":"cvss","old":"7.8","new":"5.2"},{"seq":183530,"id":"CVE-2026-89472","ts":1789356675763,"field":"severity","old":"high","new":"medium"},{"seq":153250,"id":"CVE-2026-89472","ts":1789285349739,"field":"cvss","old":null,"new":"7.8"},{"seq":153249,"id":"CVE-2026-89472","ts":1789285349739,"field":"severity","old":"none","new":"high"},{"seq":147331,"id":"CVE-2026-89472","ts":1789270210486,"field":"cvss","old":null,"new":"5.2"},{"seq":147330,"id":"CVE-2026-89472","ts":1789270210486,"field":"severity","old":"none","new":"medium"},{"seq":109088,"id":"CVE-2026-89472","ts":1789183730259,"field":"cvss","old":null,"new":"5.2"},{"seq":109087,"id":"CVE-2026-89472","ts":1789183730259,"field":"severity","old":"none","new":"medium"}]}