{"id":"CVE-2026-80970","title":"kernel: ALSA: FCP: do not copy out an uninitialised init response (CVE-2026-80970)","summary":"A flaw was found in the Linux kernel's Advanced Linux Sound Architecture (ALSA) FireWire Control Protocol (FCP) subsystem. This vulnerability allows a local attacker to trigger the copying of uninitialized kernel memory to userspace. By se…","severity":"high","cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"vendor","cwe":"CWE-908","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-09-11","updated":"2026-09-14","sourceUpdated":"2026-09-14T18:25:31+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80970.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80970.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80970"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532310"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80970"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80970"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80970.mbox"},{"url":"https://git.kernel.org/stable/c/e9e52437120fb5f802152877ba20c4b406c9fa9e"},{"url":"https://git.kernel.org/stable/c/29ab2df278ab4f1d238cd9c1c393ee00db175cba"},{"url":"https://git.kernel.org/stable/c/4335e387786479889e6db691fe06d345e52ea536"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00198,"epssPercentile":0.09836,"ingestedAt":"2026-09-14T15:23:07.455Z","slug":"CVE-2026-80970","body":"## Overview\n\nA flaw was found in the Linux kernel's Advanced Linux Sound Architecture (ALSA) FireWire Control Protocol (FCP) subsystem. This vulnerability allows a local attacker to trigger the copying of uninitialized kernel memory to userspace. By sending a specially crafted short or zero-length data stage during the FCP initialization, an attacker could potentially read sensitive information from the kernel's memory.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80970.json)\n\n**kernel: ALSA: FCP: do not copy out an uninitialised init response** — rated Moderate 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 9\n- Red Hat OpenShift Container Platform 4\n\nNo fix planned:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\nNot affected:\n\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat OpenShift Container Platform 4\n\n## Remediation\n\nAffected","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":204205,"id":"CVE-2026-80970","ts":1789490240162,"field":"cvss","old":null,"new":"7"},{"seq":204204,"id":"CVE-2026-80970","ts":1789490240162,"field":"severity","old":"none","new":"high"},{"seq":147428,"id":"CVE-2026-80970","ts":1789270210870,"field":"cvss","old":null,"new":"4.5"},{"seq":147427,"id":"CVE-2026-80970","ts":1789270210870,"field":"severity","old":"none","new":"medium"},{"seq":109158,"id":"CVE-2026-80970","ts":1789183730539,"field":"cvss","old":null,"new":"4.5"},{"seq":109157,"id":"CVE-2026-80970","ts":1789183730539,"field":"severity","old":"none","new":"medium"}]}