CVE-2026-97966: Linux kernel · octeontx2-pf: reset HTB scheduler topology before freeing queues
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in ef39fca8508597fa565cf2be72a884a712fb98af : update Linux kernel when convenient.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in ef39fca8508597fa565cf2be72a884a712fb98af, 621c99be42e3f5cb68a6af9480a255218a761c4e, 16c5c8ea5017952ff14c87626a45359d195dda6f +2
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 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 to a fixed release listed under Affected software.
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
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
This vulnerability has been fixed in Linux kernel version 6.5. Users should update to this version or later to apply the official fix. No additional mitigation actions are indicated.
Description
A vulnerability in the Linux kernel's octeontx2-pf driver related to the HTB scheduler topology has been fixed. The issue involved improper clearing of topology data when freeing scheduler queues, which could cause residual priority settings to persist and affect later queue allocations. The fix involves resetting topology data before queues are returned to the application framework during teardown.
References
- git.kernel.org/stable/c/16c5c8ea5017952ff14c87626a45359d195dda6f (opens in a new tab)
- git.kernel.org/stable/c/0aa2dd6eaa347c7aab448df0eec0afcfe7489885 (opens in a new tab)
- git.kernel.org/stable/c/621c99be42e3f5cb68a6af9480a255218a761c4e (opens in a new tab)
- git.kernel.org/stable/c/2df186418e17b30b319cf9ff81aad137692ab107 (opens in a new tab)
- git.kernel.org/stable/c/ef39fca8508597fa565cf2be72a884a712fb98af (opens in a new tab)