{"id":"CVE-2026-89582","title":"kernel: bnx2x: fix double free in bnx2x_init_firmware() error path (CVE-2026-89582)","summary":"A flaw was found in the `bnx2x` component of the Linux kernel. This flaw occurs due to a double free vulnerability within the `bnx2x_init_firmware()` function's error handling path. Memory pointers are freed without being set to NULL, allo…","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-1341","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 7","enterprise_linux 8","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-09-11","updated":"2026-09-18","sourceUpdated":"2026-09-18T17:53:19+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89582.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89582.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89582"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532281"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89582"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89582"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89582.mbox"},{"url":"https://git.kernel.org/stable/c/4d36e38e48340a1ccf92a98c7a22d07a954e5aa3"},{"url":"https://git.kernel.org/stable/c/a142c024f07d623e2b6b25943f6c36d4b6b0b4c6"},{"url":"https://git.kernel.org/stable/c/d2796ffe38cb4155afe0eab23636295b096c27a5"},{"url":"https://git.kernel.org/stable/c/dc98e727b9cfc5e19c796bf893878153f00b222b"},{"url":"https://git.kernel.org/stable/c/770715784b689749014ce193ef986b706fe8f51c"},{"url":"https://git.kernel.org/stable/c/c44e5d6c3189241d5f791bc7b1eddde6b92f802c"},{"url":"https://git.kernel.org/stable/c/07d4516e3eb1fcde4a5db29eb556cdb0ebba6265"},{"url":"https://git.kernel.org/stable/c/ac280f6872e75df49f3004505bcddff91d9e5362"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00176,"epssPercentile":0.07424,"ingestedAt":"2026-09-14T15:23:07.451Z","slug":"CVE-2026-89582","body":"## Overview\n\nA flaw was found in the `bnx2x` component of the Linux kernel. This flaw occurs due to a double free vulnerability within the `bnx2x_init_firmware()` function's error handling path. Memory pointers are freed without being set to NULL, allowing the `bnx2x_release_firmware()` cleanup function to attempt freeing the same memory a second time. This issue could lead to system instability, a denial of service (DoS), or potentially arbitrary code execution.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, 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 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89582.json)\n\n**kernel: bnx2x: fix double free in bnx2x_init_firmware() error path** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-18.\n\nAffected:\n\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\nNo fix planned:\n\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\nNot affected:\n\n- Red Hat Enterprise Linux 6\n\n## Remediation\n\nAffected","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":208156,"id":"CVE-2026-89582","ts":1789922725411,"field":"cvss","old":"4.1","new":"7"},{"seq":208155,"id":"CVE-2026-89582","ts":1789922725411,"field":"severity","old":"medium","new":"high"},{"seq":204035,"id":"CVE-2026-89582","ts":1789490231140,"field":"cvss","old":null,"new":"4.1"},{"seq":204034,"id":"CVE-2026-89582","ts":1789490231140,"field":"severity","old":"none","new":"medium"},{"seq":147470,"id":"CVE-2026-89582","ts":1789270211035,"field":"cvss","old":null,"new":"4.1"},{"seq":147469,"id":"CVE-2026-89582","ts":1789270211035,"field":"severity","old":"none","new":"medium"},{"seq":109220,"id":"CVE-2026-89582","ts":1789183730779,"field":"cvss","old":null,"new":"4.1"},{"seq":109219,"id":"CVE-2026-89582","ts":1789183730779,"field":"severity","old":"none","new":"medium"}]}