{"id":"CVE-2026-80944","title":"kernel: wifi: mwifiex: Detach sync cmd buffer on interrupted wait (CVE-2026-80944)","summary":"A flaw was found in the Linux kernel's mwifiex Wi-Fi driver. When a synchronous command's wait operation is interrupted, the driver can attempt to write data to a memory location that has already been released. This memory corruption can l…","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-787","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 8","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-09-11","updated":"2026-09-14","sourceUpdated":"2026-09-14T15:54:43+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80944.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80944.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80944"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532163"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80944"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80944"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80944.mbox"},{"url":"https://git.kernel.org/stable/c/8c67b8c50286e0cb7f18d667e6a37a2ec6e08ff9"},{"url":"https://git.kernel.org/stable/c/9024c7729eb523cf4f3a4203966d3a4aaabf030d"},{"url":"https://git.kernel.org/stable/c/9e06c9c8a1f10c55d9bc5d139656d58795e64483"},{"url":"https://git.kernel.org/stable/c/f2134d6ff30cd6e1bf63d6b0a5d8e0839f0168b3"},{"url":"https://git.kernel.org/stable/c/20ee9c03f261bf6ac59331e2ca7b46b23646412a"},{"url":"https://git.kernel.org/stable/c/b1bbeb8970eeb6c6bf3cd5314138103f7b69446d"},{"url":"https://git.kernel.org/stable/c/d29a165588b6a0cf7a38db5cbd602aef7ef8c658"},{"url":"https://git.kernel.org/stable/c/ef06882c7d8a7400b67d0d003b1008093dd589ed"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00129,"epssPercentile":0.02913,"scores":{"vendor":7,"cna":7.8},"ingestedAt":"2026-09-14T15:23:07.455Z","slug":"CVE-2026-80944","body":"## Overview\n\nA flaw was found in the Linux kernel's mwifiex Wi-Fi driver. When a synchronous command's wait operation is interrupted, the driver can attempt to write data to a memory location that has already been released. This memory corruption can lead to a system crash (kernel panic), resulting in a Denial of Service (DoS).\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, 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-2026-80944.json)\n\n**kernel: wifi: mwifiex: Detach sync cmd buffer on interrupted wait** — 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 8\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 8\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\n## Remediation\n\nAffected","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":202737,"id":"CVE-2026-80944","ts":1789403715373,"field":"cvss","old":"7.8","new":"7"},{"seq":183816,"id":"CVE-2026-80944","ts":1789356677516,"field":"cvss","old":"7.8","new":"5.3"},{"seq":183815,"id":"CVE-2026-80944","ts":1789356677516,"field":"severity","old":"high","new":"medium"},{"seq":153126,"id":"CVE-2026-80944","ts":1789285349133,"field":"cvss","old":null,"new":"7.8"},{"seq":153125,"id":"CVE-2026-80944","ts":1789285349133,"field":"severity","old":"none","new":"high"},{"seq":147662,"id":"CVE-2026-80944","ts":1789270211787,"field":"cvss","old":null,"new":"5.3"},{"seq":147661,"id":"CVE-2026-80944","ts":1789270211787,"field":"severity","old":"none","new":"medium"},{"seq":109416,"id":"CVE-2026-80944","ts":1789183731829,"field":"cvss","old":null,"new":"5.3"},{"seq":109415,"id":"CVE-2026-80944","ts":1789183731829,"field":"severity","old":"none","new":"medium"}]}