What’s Vulnerable › Vulnerabilities

CVE-2026-98424: wifi: cfg80211: undo netns switch if renaming the wiphy fails

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-14 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: undo netns switch if renaming the wiphy fails Once all the interfaces have been moved, cfg80211_switch_netns() moves the wiphy itself by setting its network namespace and then renaming it, which makes sysfs move it. The rename can fail (but only on allocation failures), leaving things mixed up and hitting the warning there. Ignoring it isn't great, undo the move and let the change fail in this case. If undo fails then WARN, then things would again be stuck in two different network namespaces.

Affected products

• Linux kernel: 2.6.32 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/739b7bf3942da4cde8eedb143d01a16ed865d1d7
• https://git.kernel.org/stable/c/96bef5667b0c4aecb1b850d2343f69b9d684abb9
• https://git.kernel.org/stable/c/a41bd1938a9bfe226d444172a7e20e4bd5097960

Get alerted when CVE-2026-98424 or the next vulnerability affects your stack