{"id":"CVE-2026-80974","title":"kernel: mfd: sm501: Fix potential memory leaks during remove (CVE-2026-80974)","summary":"A flaw was found in the `mfd: sm501` component of the Linux kernel. This vulnerability arises from a failure to properly free allocated memory for `struct sm501_devdata` during the device removal process. A local attacker could potentially…","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-772","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 6","enterprise_linux 7","enterprise_linux 8","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-09-11","updated":"2026-09-14","sourceUpdated":"2026-09-14T18:43:22+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80974.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80974.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80974"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532469"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80974"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80974"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80974.mbox"},{"url":"https://git.kernel.org/stable/c/fcc6c3b11d73459e0d55b27c98cc56d59fef4d82"},{"url":"https://git.kernel.org/stable/c/94ca4f040ba489db2d4b66e9d1ee91b4f9a00534"},{"url":"https://git.kernel.org/stable/c/c8be3a076a59ec793fb2e4bdb830a709aaea9cce"},{"url":"https://git.kernel.org/stable/c/83feedd9d83c0c5199f98c72df0a6196b4aefb4d"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.002,"epssPercentile":0.10114,"ingestedAt":"2026-09-14T00:35:28.531Z","slug":"CVE-2026-80974","body":"## Overview\n\nA flaw was found in the `mfd: sm501` component of the Linux kernel. This vulnerability arises from a failure to properly free allocated memory for `struct sm501_devdata` during the device removal process. A local attacker could potentially exploit this memory leak, which may lead to a denial of service (DoS) due to resource exhaustion.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80974.json)\n\n**kernel: mfd: sm501: Fix potential memory leaks during remove** — rated Low by Red Hat. Released 2026-09-11, updated 2026-09-14.\n\nAffected:\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\nNo fix planned:\n\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 10\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\nOut of support scope","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":204189,"id":"CVE-2026-80974","ts":1789490238459,"field":"cvss","old":null,"new":"5.5"},{"seq":204188,"id":"CVE-2026-80974","ts":1789490238459,"field":"severity","old":"none","new":"medium"},{"seq":147161,"id":"CVE-2026-80974","ts":1789270197899,"field":"cvss","old":null,"new":"4.4"},{"seq":147160,"id":"CVE-2026-80974","ts":1789270197899,"field":"severity","old":"none","new":"medium"},{"seq":108922,"id":"CVE-2026-80974","ts":1789183729551,"field":"cvss","old":null,"new":"4.4"},{"seq":108921,"id":"CVE-2026-80974","ts":1789183729551,"field":"severity","old":"none","new":"medium"}]}