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VulnerabilityPublished Updated

CVE-2026-97966: Linux kernel · octeontx2-pf: reset HTB scheduler topology before freeing queues

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · fixed in ef39fca8508597fa565cf2be72a884a712fb98af : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 UTC

Severity
Unrated

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

  1. Disclosed: evidence found.

    CVE published 25 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 5e6808b4c68d7882971514ab3279926eb07c8b2d, < ef39fca8508597fa565cf2be72a884a712fb98af
Fixed in
  • ef39fca8508597fa565cf2be72a884a712fb98af
LinuxLinuxAffected
  • ≥ 5e6808b4c68d7882971514ab3279926eb07c8b2d, < 621c99be42e3f5cb68a6af9480a255218a761c4e
Fixed in
  • 621c99be42e3f5cb68a6af9480a255218a761c4e
LinuxLinuxAffected
  • ≥ 5e6808b4c68d7882971514ab3279926eb07c8b2d, < 16c5c8ea5017952ff14c87626a45359d195dda6f
Fixed in
  • 16c5c8ea5017952ff14c87626a45359d195dda6f
LinuxLinuxAffected
  • ≥ 5e6808b4c68d7882971514ab3279926eb07c8b2d, < 2df186418e17b30b319cf9ff81aad137692ab107
Fixed in
  • 2df186418e17b30b319cf9ff81aad137692ab107
LinuxLinuxAffected
  • ≥ 5e6808b4c68d7882971514ab3279926eb07c8b2d, < 0aa2dd6eaa347c7aab448df0eec0afcfe7489885
Fixed in
  • 0aa2dd6eaa347c7aab448df0eec0afcfe7489885
LinuxLinuxAffected
  • =6.5
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

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