{"id":"CVE-2026-80830","title":"kernel: usb: core: Add lock to usb_wakeup_notification() (CVE-2026-80830)","summary":"A flaw was found in the Linux kernel's USB subsystem. A race condition in the `usb_wakeup_notification()` function could allow a local attacker or a malicious USB device to trigger a use-after-free vulnerability. This could lead to system …","severity":"medium","cvss":5.1,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":"CWE-416","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":"2026-09-04","updated":"2026-10-25","sourceUpdated":"2026-10-25T23:09:18+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80830.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80830.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80830"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2528669"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80830"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80830"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80830.mbox"},{"url":"https://kernelcve.org/list/?q=CVE-2026-80830"},{"url":"https://git.kernel.org/stable/c/a7a16167991c88016acef720927400404039d850"},{"url":"https://git.kernel.org/stable/c/975ef630393c07fcbebf94f4d97043161b77a6ce"},{"url":"https://git.kernel.org/stable/c/71cfda2fdf78041a01e9d94143baa79feabbdbf6"},{"url":"https://git.kernel.org/stable/c/04ab260407972e631c86f2bc576cd8e64d65b325"},{"url":"https://git.kernel.org/stable/c/bf2288583b4e072bdff17a233963619e4bc7a8b5"},{"url":"https://git.kernel.org/stable/c/d80b946804674069db7ce6657319a71cf8eeaa5a"},{"url":"https://git.kernel.org/stable/c/960ca456faf61824b178f47967340300b24183db"},{"url":"https://git.kernel.org/stable/c/7c48aa0c1e79116b8af4b988d16ee29b427d6491"},{"url":"https://git.kernel.org/stable/c/e263e18a9e7b1ff3e7301f0801c6ff87c31adfb6"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00195,"epssPercentile":0.09133,"ingestedAt":"2026-10-19T09:16:01.501Z","slug":"CVE-2026-80830","body":"## Overview\n\nA flaw was found in the Linux kernel's USB subsystem. A race condition in the `usb_wakeup_notification()` function could allow a local attacker or a malicious USB device to trigger a use-after-free vulnerability. This could lead to system instability or a denial of service by causing the system to dereference freed memory.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · 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 2026-10-25 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80830.json)\n\n**kernel: usb: core: Add lock to usb_wakeup_notification()** — rated Moderate by Red Hat. Released 2026-09-04, updated 2026-10-25.\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\n\nWorkarounds / mitigations:\n\n- Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":28.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":229469,"id":"CVE-2026-80830","ts":1793019787445,"field":"cvss","old":null,"new":"5.1"},{"seq":229468,"id":"CVE-2026-80830","ts":1793019787445,"field":"severity","old":"none","new":"medium"}]}