CVE-2026-98335: Linux kernel · wifi: mac80211: abort chanswitch when leaving a mesh
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in d222fdc973bb8dbf0357772bd9042ffdc8291939 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in d222fdc973bb8dbf0357772bd9042ffdc8291939, bc544ef02327edf61c94d2b6bae9d14b217009b2, ac7472a24bd433b81c06582835dd1d5547c10da9 +1
Exploitation evidence
Disclosed: evidence found.
CVE published 6 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Linux kernel to d222fdc973bb8dbf0357772bd9042ffdc8291939, bc544ef02327edf61c94d2b6bae9d14b217009b2, ac7472a24bd433b81c06582835dd1d5547c10da9 or 2e1d6e80148495e728a85a9250176f266312e55c.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
The issue has been fixed in the Linux kernel as indicated by the provided fixed commit hashes. Users should update their Linux kernel to a version that includes these fixes to prevent the crash. No additional mitigation is required beyond applying the official fix.
Description
A vulnerability in the Linux kernel's mac80211 wireless subsystem causes a crash due to improper handling of channel switch abort when leaving a mesh network. The issue occurs because the channel switch announcement (CSA) remains active after leaving the mesh, but the channel context is released, leading to a null pointer dereference and kernel crash.
References
- git.kernel.org/stable/c/bc544ef02327edf61c94d2b6bae9d14b217009b2 (opens in a new tab)
- git.kernel.org/stable/c/2e1d6e80148495e728a85a9250176f266312e55c (opens in a new tab)
- git.kernel.org/stable/c/d222fdc973bb8dbf0357772bd9042ffdc8291939 (opens in a new tab)
- git.kernel.org/stable/c/ac7472a24bd433b81c06582835dd1d5547c10da9 (opens in a new tab)