{"id":"CVE-2026-89464","title":"kernel: power: supply: twl4030_charger: cancel workers via devm (CVE-2026-89464)","summary":"A flaw was found in the Linux kernel's `twl4030_charger` driver. When the driver's remove function is called, it fails to properly cancel pending worker tasks. This oversight allows a worker to attempt to access memory that has already bee…","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":"2026-09-17","sourceUpdated":"2026-09-17T19:57:31+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89464.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89464.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89464"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532107"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89464"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89464"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89464.mbox"},{"url":"https://git.kernel.org/stable/c/6eba34732524067da2aad5ddfdfbc641ded10e9e"},{"url":"https://git.kernel.org/stable/c/72a2d6cd049f892853e4e2d8d8fc5e7d0244a458"},{"url":"https://git.kernel.org/stable/c/a4460e89d4088cfec2da5be33e265ef1a8e780e9"},{"url":"https://git.kernel.org/stable/c/b955da82db4170bdf1c784dc457287aa0c977378"},{"url":"https://git.kernel.org/stable/c/9644c96ef8646c65d46caa5139a6631e29b79d6c"},{"url":"https://git.kernel.org/stable/c/e9fffe10bd791082263c1678f2f6cdd6d7b487e0"},{"url":"https://git.kernel.org/stable/c/c46c205bab0dfce4dd54aeb49da3f183e1fdfc63"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00172,"epssPercentile":0.0697,"ingestedAt":"2026-09-14T15:23:07.453Z","slug":"CVE-2026-89464","body":"## Overview\n\nA flaw was found in the Linux kernel's `twl4030_charger` driver. When the driver's remove function is called, it fails to properly cancel pending worker tasks. This oversight allows a worker to attempt to access memory that has already been deallocated, leading to a use-after-free vulnerability. A local attacker could potentially exploit this to cause a denial of service.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89464.json)\n\n**kernel: power: supply: twl4030_charger: cancel workers via devm** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-17.\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":206990,"id":"CVE-2026-89464","ts":1789749735579,"field":"cvss","old":"4.4","new":"5.5"},{"seq":204107,"id":"CVE-2026-89464","ts":1789490231465,"field":"cvss","old":null,"new":"4.4"},{"seq":204106,"id":"CVE-2026-89464","ts":1789490231465,"field":"severity","old":"none","new":"medium"},{"seq":147808,"id":"CVE-2026-89464","ts":1789270212371,"field":"cvss","old":null,"new":"4.4"},{"seq":147807,"id":"CVE-2026-89464","ts":1789270212371,"field":"severity","old":"none","new":"medium"},{"seq":109570,"id":"CVE-2026-89464","ts":1789183732455,"field":"cvss","old":null,"new":"4.4"},{"seq":109569,"id":"CVE-2026-89464","ts":1789183732455,"field":"severity","old":"none","new":"medium"}]}