Answer in brief
CVE-2026-98331 records a Unknown severity vulnerability in wifi: mac80211: unlist vifs when their netdev is unregistered. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=463d018323851a608eef52a9427b0585005c647f <a22c02863439993095acd0c3db97fa53cd515f4f || >=463d018323851a608eef52a9427b0585005c647f <20a56e96a6f7b4dfbd13f8732fd2673409fc7ba0 || >=463d018323851a608eef52a9427b0585005c647f <b735ad1a9aca6080192c1316cf2706e5e1318762 || >=463d018323851a608eef52a9427b0585005c647f <d45bf731ec7085d2cc2c5d179d3b3b6c743d4fb1 || >=463d018323851a608eef52a9427b0585005c647f <821bab0456dfca12acef6df702c8f2477d313227 || >=463d018323851a608eef52a9427b0585005c647f <eee2efd82867b623982ac51925b5a1812a74c50d | a22c02863439993095acd0c3db97fa53cd515f4f, 20a56e96a6f7b4dfbd13f8732fd2673409fc7ba0, b735ad1a9aca6080192c1316cf2706e5e1318762, d45bf731ec7085d2cc2c5d179d3b3b6c743d4fb1, 821bab0456dfca12acef6df702c8f2477d313227, eee2efd82867b623982ac51925b5a1812a74c50d |
| Linux/Linuxgeneric | 2.6.32 | Not reported |
Published upstream
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 6, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: unlist vifs when their netdev is unregistered mac80211 only removes vifs from the local->interfaces list when an interface is removed via ieee80211_if_remove(), before it unregisters the netdev. However, it's possible for a netdev to be unregistered without going through that: When the netns that holds the wiphy is destroyed, the wiphy is supposed to move to the init_ns, but that can run into allocation failures. Then, mac80211 has an interface listed that doesn't exist, and will eventually hit BUG: failure at net/wireless/core.h:141/wiphy_to_rdev()! ... _cfg80211_unregister_wdev+0x24/0x36a [cfg80211] cfg80211_unregister_wdev+0x15/0x1d [cfg80211] ieee80211_remove_interfaces+0x1ff/0x257 [mac80211] ieee80211_unregister_hw+0x73/0x1d1 [mac80211] mac80211_hwsim_del_radio+0x114/0x166 [mac80211_hwsim] Remove the interface from the list in ->ndo_uninit if it's still around to avoid this.
Quoted source text, attributed separately from HOL analysis.