CVE-2026-98307: Linux kernel · wifi: ath11k: cleanup arsta in ath11k_mac_peer_cleanup_all()
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in c4108dce0838ec7d38d782f76f9c007cfe2fff45 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 17:16 UTC
Rated Low 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 c4108dce0838ec7d38d782f76f9c007cfe2fff45, be1d5e95ec499ed5ee9704aa27dd1407ccf0d0ac, 820b8cff81c796ba20573e04722ab62500713f97 +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 c4108dce0838ec7d38d782f76f9c007cfe2fff45, be1d5e95ec499ed5ee9704aa27dd1407ccf0d0ac, 820b8cff81c796ba20573e04722ab62500713f97 or 57bc3cd46458eafa1c38e3044a61b7399cde7642.
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
This issue has been fixed in the Linux kernel by refactoring the cleanup functions to properly free all related resources. Users should apply the updated kernel versions containing the fix identified by the provided commit hashes. No additional mitigation is required beyond applying the official fix.
Description
A memory cleanup issue in the Linux kernel's ath11k Wi-Fi driver was fixed. The vulnerability involved incomplete cleanup of driver-related resources when a station is removed, potentially leading to memory leaks. The fix refactors cleanup code to ensure all resources are properly freed, addressing kmemleak reports.
References
- git.kernel.org/stable/c/c4108dce0838ec7d38d782f76f9c007cfe2fff45 (opens in a new tab)
- git.kernel.org/stable/c/57bc3cd46458eafa1c38e3044a61b7399cde7642 (opens in a new tab)
- git.kernel.org/stable/c/be1d5e95ec499ed5ee9704aa27dd1407ccf0d0ac (opens in a new tab)
- git.kernel.org/stable/c/820b8cff81c796ba20573e04722ab62500713f97 (opens in a new tab)