{"id":"CVE-2026-98331","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: unlist vifs when their netdev is unregistered\n\nmac80211 only removes vifs from the local->interfaces list when\nan interface is removed via ieee80211_if_…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: unlist vifs when their netdev is unregistered\n\nmac80211 only removes vifs from the local->interfaces list when\nan interface is removed via ieee80211_if_…","severity":"high","cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 463d018323851a608eef52a9427b0585005c647f < a22c02863439993095acd0c3db97fa53cd515f4f","Linux >= 463d018323851a608eef52a9427b0585005c647f < 20a56e96a6f7b4dfbd13f8732fd2673409fc7ba0","Linux >= 463d018323851a608eef52a9427b0585005c647f < b735ad1a9aca6080192c1316cf2706e5e1318762","Linux >= 463d018323851a608eef52a9427b0585005c647f < d45bf731ec7085d2cc2c5d179d3b3b6c743d4fb1","Linux >= 463d018323851a608eef52a9427b0585005c647f < 821bab0456dfca12acef6df702c8f2477d313227","Linux >= 463d018323851a608eef52a9427b0585005c647f < eee2efd82867b623982ac51925b5a1812a74c50d","Linux 2.6.32"],"published":"2026-10-06","updated":"2026-10-07","sourceUpdated":"2026-10-07T07:17:09.387","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98331","references":[{"url":"https://git.kernel.org/stable/c/20a56e96a6f7b4dfbd13f8732fd2673409fc7ba0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/821bab0456dfca12acef6df702c8f2477d313227","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a22c02863439993095acd0c3db97fa53cd515f4f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b735ad1a9aca6080192c1316cf2706e5e1318762","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d45bf731ec7085d2cc2c5d179d3b3b6c743d4fb1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/eee2efd82867b623982ac51925b5a1812a74c50d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98331.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98331"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2546512"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98331"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98331"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98331.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00131,"epssPercentile":0.02667,"ingestedAt":"2026-10-06T08:50:17.405Z","cwe":["CWE-617"],"slug":"CVE-2026-98331","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: unlist vifs when their netdev is unregistered\n\nmac80211 only removes vifs from the local->interfaces list when\nan interface is removed via ieee80211_if_remove(), before it\nunregisters the netdev. However, it's possible for a netdev to\nbe unregistered without going through that: When the netns that\nholds the wiphy is destroyed, the wiphy is supposed to move to\nthe init_ns, but that can run into allocation failures.\n\nThen, mac80211 has an interface listed that doesn't exist, and\nwill eventually hit\n\n  BUG: failure at net/wireless/core.h:141/wiphy_to_rdev()!\n  ...\n  _cfg80211_unregister_wdev+0x24/0x36a [cfg80211]\n  cfg80211_unregister_wdev+0x15/0x1d [cfg80211]\n  ieee80211_remove_interfaces+0x1ff/0x257 [mac80211]\n  ieee80211_unregister_hw+0x73/0x1d1 [mac80211]\n  mac80211_hwsim_del_radio+0x114/0x166 [mac80211_hwsim]\n\nRemove the interface from the list in ->ndo_uninit if it's still\naround to avoid this.\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** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, 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 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-10 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98331.json)","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":217332,"id":"CVE-2026-98331","ts":1791361315391,"field":"cvss","old":null,"new":"7"},{"seq":217331,"id":"CVE-2026-98331","ts":1791361315391,"field":"severity","old":"none","new":"high"}]}