{"id":"CVE-2026-89514","title":"kernel: scsi: fnic: Use GFP_ATOMIC for VLAN alloc under spinlock (CVE-2026-89514)","summary":"A flaw was found in the Linux kernel's Fibre Channel over Ethernet Network Interface Card (fnic) driver. The `fnic_fcoe_process_vlan_resp()` function attempts to allocate memory in a way that can cause the system to sleep while holding a s…","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-663","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-09-11","updated":"2026-09-15","sourceUpdated":"2026-09-15T11:02:03+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89514.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89514.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89514"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532426"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89514"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89514"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89514.mbox"},{"url":"https://git.kernel.org/stable/c/c4ade059aaeb51fdb3f4ae71e1ea3e2019b85178"},{"url":"https://git.kernel.org/stable/c/d86f65aed01408613607f8fc31493f07554788f2"},{"url":"https://git.kernel.org/stable/c/9639c6324524ea3f934908bd51f02430000954ab"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00173,"epssPercentile":0.07063,"ingestedAt":"2026-09-14T11:11:19.887Z","slug":"CVE-2026-89514","body":"## Overview\n\nA flaw was found in the Linux kernel's Fibre Channel over Ethernet Network Interface Card (fnic) driver. The `fnic_fcoe_process_vlan_resp()` function attempts to allocate memory in a way that can cause the system to sleep while holding a spinlock. This incorrect memory allocation in an atomic context can lead to a system deadlock, rendering the system unresponsive. This issue can be triggered by processing VLAN responses.\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 2026-09-15 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89514.json)\n\n**kernel: scsi: fnic: Use GFP_ATOMIC for VLAN alloc under spinlock** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-15.\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\nFix deferred","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":203912,"id":"CVE-2026-89514","ts":1789490220772,"field":"cvss","old":null,"new":"5.5"},{"seq":203911,"id":"CVE-2026-89514","ts":1789490220772,"field":"severity","old":"none","new":"medium"},{"seq":147231,"id":"CVE-2026-89514","ts":1789270203003,"field":"cvss","old":null,"new":"4.4"},{"seq":147230,"id":"CVE-2026-89514","ts":1789270203003,"field":"severity","old":"none","new":"medium"},{"seq":108980,"id":"CVE-2026-89514","ts":1789183729822,"field":"cvss","old":null,"new":"4.4"},{"seq":108979,"id":"CVE-2026-89514","ts":1789183729822,"field":"severity","old":"none","new":"medium"}]}