{"id":"CVE-2026-98331","published":"2026-10-06T09:18:25.517","lastModified":"2026-10-07T07:17:09.387","description":"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_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.","cvssScore":7,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/20a56e96a6f7b4dfbd13f8732fd2673409fc7ba0","tags":[]},{"url":"https://git.kernel.org/stable/c/821bab0456dfca12acef6df702c8f2477d313227","tags":[]},{"url":"https://git.kernel.org/stable/c/a22c02863439993095acd0c3db97fa53cd515f4f","tags":[]},{"url":"https://git.kernel.org/stable/c/b735ad1a9aca6080192c1316cf2706e5e1318762","tags":[]},{"url":"https://git.kernel.org/stable/c/d45bf731ec7085d2cc2c5d179d3b3b6c743d4fb1","tags":[]},{"url":"https://git.kernel.org/stable/c/eee2efd82867b623982ac51925b5a1812a74c50d","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}