Skip to main content
VulnerabilityPublished Updated

CVE-2026-99248: Linux kernel · i2c: xiic: restore non-managed runtime PM to fix clk WARN flood

Affects Linux kernelSource GCVE Database

0
Compare
Authoritative record:CVE-2026-99248· Low

Not known to be exploited.

Data as of 5 Nov 2026, 00:01 UTC

Severity
Low

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
EPSS
0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 4 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10linuxpkg:deb/ubuntu/linux?arch=source&distro=stonkingOther threatsAffected
  • 7.0.0-14.14 – 7.3.0-10.10
7 affected builds
Fixed in–
Ubuntu 26.10linux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=stonkingOther threatsAffected
  • 7.0.0-1004.4 – 7.3.0-1004.4
6 affected builds
Fixed in–
Ubuntu 26.10linux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=stonkingOther threatsAffected
  • 7.0.0-1004.4 – 7.3.0-1004.4
6 affected builds
Fixed in–
Ubuntu 26.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=stonkingOther threatsAffected
  • 7.0.0-1004.4 – 7.3.0-1004.5
4 affected builds
Fixed in–
Ubuntu 26.10linux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=stonkingOther threatsAffected
  • 7.0.0-1003.3 – 7.3.0-1004.4
6 affected builds
Fixed in–
Ubuntu 26.10linux-oraclepkg:deb/ubuntu/linux-oracle?arch=source&distro=stonkingOther threatsAffected
  • 7.0.0-1003.3 – 7.3.0-1004.4
6 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available that restores non-managed runtime PM handling and corrects the order of runtime PM disablement and IRQ management in the i2c xiic driver. Systems should apply the updated Linux kernel versions that include this patch to resolve the clock warning flood issue. No additional mitigation actions are required beyond applying the official fix.

Description

CVE-2026-99248 addresses a Linux kernel vulnerability in the i2c xiic driver related to improper runtime power management (PM) teardown. The issue causes a clock warning flood during device removal due to unbalanced clock enable/disable calls and incorrect ordering of runtime PM disablement. The fix restores non-managed runtime PM handling and corrects IRQ request and release procedures to prevent these warnings.

References

Community reviews

Loading reviews…