{"id":"CVE-2026-89475","title":"kernel: power: supply: bq24257: fix use-after-free on remove (CVE-2026-89475)","summary":"A flaw was found in the Linux kernel. A use-after-free vulnerability exists in the `bq24257` power supply driver. This issue occurs when the STAT-pin interrupt handler attempts to reschedule work and access memory that has already been fre…","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-825","vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","affected":["openshift_container_platform 4"],"published":"2026-09-11","updated":"2026-09-18","sourceUpdated":"2026-09-18T21:13:38+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89475.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89475.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89475"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532090"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89475"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89475"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89475.mbox"},{"url":"https://git.kernel.org/stable/c/9d77fd7dd9a3ad57f7655c5264b503b85adbb7b8"},{"url":"https://git.kernel.org/stable/c/a279e64c907f5638bb34cb8e2c9285798cf5f690"},{"url":"https://git.kernel.org/stable/c/6d2eb93975c07b0169a3287efc1ae3b60cf52d8e"},{"url":"https://git.kernel.org/stable/c/861ec73ce86e2ca18082cc7be4f140a5bbdf1428"},{"url":"https://git.kernel.org/stable/c/f495808cdd6d9576965787cf6d9737d0b0e86b73"},{"url":"https://git.kernel.org/stable/c/47ccbad210f48721c30d69d65b83dc9fff919ca9"},{"url":"https://git.kernel.org/stable/c/9d34c9d660c3d0931d2cc749c46c47cf31f96e48"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00205,"epssPercentile":0.109,"ingestedAt":"2026-09-14T15:23:07.453Z","slug":"CVE-2026-89475","body":"## Overview\n\nA flaw was found in the Linux kernel. A use-after-free vulnerability exists in the `bq24257` power supply driver. This issue occurs when the STAT-pin interrupt handler attempts to reschedule work and access memory that has already been freed during the device removal process. This can lead to system instability or a denial of service (DoS).\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89475.json)\n\n**kernel: power: supply: bq24257: fix use-after-free on remove** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-18.\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":206966,"id":"CVE-2026-89475","ts":1789749722688,"field":"cvss","old":null,"new":"5.5"},{"seq":206965,"id":"CVE-2026-89475","ts":1789749722688,"field":"severity","old":"none","new":"medium"},{"seq":147722,"id":"CVE-2026-89475","ts":1789270212037,"field":"cvss","old":null,"new":"5.2"},{"seq":147721,"id":"CVE-2026-89475","ts":1789270212037,"field":"severity","old":"none","new":"medium"},{"seq":109480,"id":"CVE-2026-89475","ts":1789183732077,"field":"cvss","old":null,"new":"5.2"},{"seq":109479,"id":"CVE-2026-89475","ts":1789183732077,"field":"severity","old":"none","new":"medium"}]}