{"id":"CVE-2026-89527","title":"kernel: svcrdma: Use svc_xprt_put to free listener on create failure (CVE-2026-89527)","summary":"A flaw was found in the Linux kernel's svcrdma module. This vulnerability occurs when a listener creation fails, leading to an improper release of a network namespace reference. This resource leak can be exploited by a local attacker, pote…","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":"2026-09-14T18:25:39+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89527.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89527.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89527"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532056"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89527"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89527"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89527.mbox"},{"url":"https://git.kernel.org/stable/c/ac1dd6002f758ab7dd3e737757e5a1bb1c0b38d6"},{"url":"https://git.kernel.org/stable/c/e346ef7bcb137f50c49f969330ab7dcf64ea1654"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00201,"epssPercentile":0.10277,"ingestedAt":"2026-09-14T11:11:19.886Z","slug":"CVE-2026-89527","body":"## Overview\n\nA flaw was found in the Linux kernel's svcrdma module. This vulnerability occurs when a listener creation fails, leading to an improper release of a network namespace reference. This resource leak can be exploited by a local attacker, potentially causing a denial of service (DoS) by exhausting system resources.\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-2026-89527.json)\n\n**kernel: svcrdma: Use svc_xprt_put to free listener on create failure** — 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":204203,"id":"CVE-2026-89527","ts":1789490240153,"field":"cvss","old":null,"new":"5.5"},{"seq":204202,"id":"CVE-2026-89527","ts":1789490240153,"field":"severity","old":"none","new":"medium"},{"seq":147804,"id":"CVE-2026-89527","ts":1789270212355,"field":"cvss","old":null,"new":"5.9"},{"seq":147803,"id":"CVE-2026-89527","ts":1789270212355,"field":"severity","old":"none","new":"medium"},{"seq":109554,"id":"CVE-2026-89527","ts":1789183732393,"field":"cvss","old":null,"new":"5.9"},{"seq":109553,"id":"CVE-2026-89527","ts":1789183732393,"field":"severity","old":"none","new":"medium"}]}