{"id":"CVE-2026-98304","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmgenet: restore the hardware filters on open\n\nbcmgenet_hfb_init() runs INIT_LIST_HEAD() on priv->rxnfc_list, which drops\nevery rule off the list, and bcmgenet_op…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmgenet: restore the hardware filters on open\n\nbcmgenet_hfb_init() runs INIT_LIST_HEAD() on priv->rxnfc_list, which drops\nevery rule off the list, and bcmgenet_op…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 3e370952287c55e5fd240cb8bb41ef8acff8829d < 56db7ec462d6a2b886e299ad835109c089606969","Linux >= 3e370952287c55e5fd240cb8bb41ef8acff8829d < 906140955c8debde65afe12e594e04c49a61b0d9","Linux >= 3e370952287c55e5fd240cb8bb41ef8acff8829d < 23ca4ddc4fce2c233a49e9fd34d4b5b02bd7324e","Linux 5.8"],"published":"2026-10-06","updated":"2026-10-06","sourceUpdated":"2026-10-06T09:18:21.520","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98304","references":[{"url":"https://git.kernel.org/stable/c/23ca4ddc4fce2c233a49e9fd34d4b5b02bd7324e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/56db7ec462d6a2b886e299ad835109c089606969","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/906140955c8debde65afe12e594e04c49a61b0d9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98304.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98304"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2546495"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98304"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98304"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98304.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-10-06T08:50:17.415Z","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-281"],"epss":0.00173,"epssPercentile":0.06737,"slug":"CVE-2026-98304","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmgenet: restore the hardware filters on open\n\nbcmgenet_hfb_init() runs INIT_LIST_HEAD() on priv->rxnfc_list, which drops\nevery rule off the list, and bcmgenet_open() calls it on each ifup. Every\nrule the user configured is silently lost:\n\n  # ethtool -N eth0 flow-type ether dst $MAC action 0\n  Added rule with ID 0\n  # ethtool -n eth0 | grep -c Filter:\n  1\n  # ip link set eth0 down && ip link set eth0 up\n  # ethtool -n eth0 | grep -c Filter:\n  0\n\nInitialise the lists once at probe and restore the rules on open, as\nbcmgenet_resume() already does.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · 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 2026-10-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98304.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":219037,"id":"CVE-2026-98304","ts":1791707040713,"field":"cvss","old":null,"new":"5.5"},{"seq":219036,"id":"CVE-2026-98304","ts":1791707040713,"field":"severity","old":"none","new":"medium"}]}