{"id":"CVE-2026-80914","title":"kernel: Bluetooth: ISO: fix use-after-free of listener socket in iso_conn_ready (CVE-2026-80914)","summary":"A flaw was found in the Bluetooth ISO subsystem of the Linux kernel. A use-after-free vulnerability can occur in the `iso_conn_ready()` function if a listener socket is closed concurrently while a child socket is being created. This can le…","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-825","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-09-09","updated":"2026-10-20","sourceUpdated":"2026-10-20T11:32:59+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80914.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80914.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80914"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2531055"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80914"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80914"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80914.mbox"},{"url":"https://git.kernel.org/stable/c/1702f12cf59a1c3b670eb6bb4a4d6fcccf07e3b8"},{"url":"https://git.kernel.org/stable/c/d47b8f8c02a3d3f282693e5a4ff1f6b4b00518de"},{"url":"https://git.kernel.org/stable/c/2387cd06a2c0b416f05028b02bba1089f54c28d9"},{"url":"https://git.kernel.org/stable/c/49fd7116f76b860b230843700fb7423ab5331e1f"},{"url":"https://git.kernel.org/stable/c/03288b7447c9e572f8ab82fc29cfb4ca719ab210"},{"url":"https://git.kernel.org/stable/c/560bef609fa5992745929e8d7d458b9d88dd2830"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00232,"epssPercentile":0.14004,"scores":{"vendor":7,"cna":8.8},"ingestedAt":"2026-09-14T15:23:07.456Z","slug":"CVE-2026-80914","body":"## Overview\n\nA flaw was found in the Bluetooth ISO subsystem of the Linux kernel. A use-after-free vulnerability can occur in the `iso_conn_ready()` function if a listener socket is closed concurrently while a child socket is being created. This can lead to a dangling pointer being dereferenced upon a later disconnect of the child socket, potentially causing system instability or a denial of service.\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 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80914.json)\n\n**kernel: Bluetooth: ISO: fix use-after-free of listener socket in iso_conn_ready** — rated Moderate by Red Hat. Released 2026-09-09, updated 2026-10-20.\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":225652,"id":"CVE-2026-80914","ts":1792498335451,"field":"cvss","old":"8.8","new":"7"},{"seq":36983,"id":"CVE-2026-80914","ts":1789022125851,"field":"cvss","old":null,"new":"8.8"},{"seq":36982,"id":"CVE-2026-80914","ts":1789022125851,"field":"severity","old":"none","new":"high"}]}