{"id":"CVE-2026-98779","title":"kernel: drm/amdgpu: fix ACP MFD device leak on init failure (CVE-2026-98779)","summary":"A flaw was found in the Linux kernel's AMD GPU (amdgpu) driver. During Audio CoProcessor (ACP) hardware initialization, child multi-function devices are not properly released if a power domain attachment fails or a hardware reset times out…","severity":"low","cvss":1.9,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L","cvssSource":"vendor","cwe":"CWE-772","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 6","enterprise_linux 8","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-10-18","updated":"2026-10-23","sourceUpdated":"2026-10-23T11:19:22+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98779.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98779.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98779"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2555062"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98779"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98779"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98779.mbox"},{"url":"https://git.kernel.org/stable/c/d700c26ed64bd3c26e4aa7679b9d5f3333c3747a"},{"url":"https://git.kernel.org/stable/c/2b9a53940a2bc063ea4cd09ee49220a503a0170c"},{"url":"https://git.kernel.org/stable/c/587469076e4ffb617f7ad1a0c4a13072a3e87113"},{"url":"https://git.kernel.org/stable/c/abf854513bc19e6e24d45353ac99ec5627ee0acc"},{"url":"https://git.kernel.org/stable/c/f0013046151b7467e62c471c1c83d63ea255799c"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00168,"epssPercentile":0.05975,"ingestedAt":"2026-10-18T16:47:32.490Z","slug":"CVE-2026-98779","body":"## Overview\n\nA flaw was found in the Linux kernel's AMD GPU (amdgpu) driver. During Audio CoProcessor (ACP) hardware initialization, child multi-function devices are not properly released if a power domain attachment fails or a hardware reset times out. This issue causes an internal resource leak, which may lead to system instability or a Denial of Service (DoS).\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 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 8, Red Hat Enterprise Linux 9, … · updated 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98779.json)\n\n**kernel: drm/amdgpu: fix ACP MFD device leak on init failure** — rated Low by Red Hat. Released 2026-10-18, updated 2026-10-23.\n\nAffected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 6\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 8\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\nNot affected:\n\n- Red Hat Enterprise Linux 7\n\n## Remediation\n\nOut of support scope","depth":"sunlit","depthScore":10,"depthScoreParts":{"impact":10.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":228068,"id":"CVE-2026-98779","ts":1792758067534,"field":"cvss","old":null,"new":"1.9"},{"seq":228067,"id":"CVE-2026-98779","ts":1792758067534,"field":"severity","old":"none","new":"low"}]}