CVE-2026-98330wifi: cfg80211: get the wiphy out of a dying network namespace
Updated under an hour ago ()
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It affects Linux. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.13%, higher than 2% of scored CVEs.
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In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: get the wiphy out of a dying network namespace When a network namespace is destroyed, cfg80211_pernet_exit() moves any wiphy back to the initial namespace, and just warns if that fails. But moving an interface can fail (due to allocation failures), and then the wiphy is left behind with a garbage netns pointer: Kernel mode fault at addr 0x30 genlmsg_multicast_netns.constprop.0+0x46/0xcf [cfg80211] nl80211_notify_wiphy+0xcd/0xe8 [cfg80211] wiphy_unregister+0x169/0x3fc [cfg80211] Note that commit debac3a20dec ("net: Remove conflicting altnames for dying netns in __dev_change_net_namespace().") fixed another path that could reach it without allocation failures. Remove interfaces that cannot be moved instead of failing the switch, so that the wiphy always ends up in the initial namespace. In this case the netdev core will unregister the interfaces anyway.
- CVSS
- 7.0 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.13% (percentile 2)
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 463d018323851a608eef52a9427b0585005c647f before caa02072b2986d4b0e7a824de05782ef7b03a0ba; from 463d018323851a608eef52a9427b0585005c647f before b949b2720688691f1e41bdbfbe3df2b6dc77c34d; from 463d018323851a608eef52a9427b0585005c647f before 4635b1a1c1d693178a537446a6e09963f0fdae52 | CNA record |
References
- https://git.kernel.org/stable/c/caa02072b2986d4b0e7a824de05782ef7b03a0ba
- https://git.kernel.org/stable/c/b949b2720688691f1e41bdbfbe3df2b6dc77c34d
- https://git.kernel.org/stable/c/4635b1a1c1d693178a537446a6e09963f0fdae52
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.