VulnerabilityPublished 3 Nov 2026

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

Source GCVE Database

Authoritative record:CVE-2026-99248· Low

Not known to be exploited : upgrade to d33373c565af9c8a28776af02bd20ba6e5724211 or 47e105bdc863f2b320f9c05c80a63d3b83312700 when convenient.

Data as of 3 Nov 2026, 13:28 UTC

Severity

Low

Rated Low by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in d33373c565af9c8a28776af02bd20ba6e5724211, 47e105bdc863f2b320f9c05c80a63d3b83312700

Exploitation evidence

Disclosed: evidence found.
CVE published 3 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 3 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-8jv9-r9q8-jx4q

What to do

Upgrade Linux kernel to d33373c565af9c8a28776af02bd20ba6e5724211 or 47e105bdc863f2b320f9c05c80a63d3b83312700.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 50c63491ff267f2860a6d8cb70c9a30ab701b9d3, < d33373c565af9c8a28776af02bd20ba6e5724211	Fixed in d33373c565af9c8a28776af02bd20ba6e5724211
LinuxLinux	Affected ≥ 50c63491ff267f2860a6d8cb70c9a30ab701b9d3, < 47e105bdc863f2b320f9c05c80a63d3b83312700	Fixed in 47e105bdc863f2b320f9c05c80a63d3b83312700
LinuxLinux	Affected =7.1	Fixed in–

AI-suggested

A fix has been implemented that restores non-managed runtime PM handling and corrects the order of runtime PM disable and usage count decrement calls in the i2c xiic driver. Users should update to the Linux kernel version that includes this fix. No additional mitigation is required as the patch addresses the root cause.

Description

CVE-2026-99248 addresses a vulnerability in the Linux kernel's i2c xiic driver related to runtime power management (PM) and clock disable warnings during device teardown. The issue arises from improper ordering and management of runtime PM calls and clock disable operations, causing repeated clock disable warnings on device removal. The fix restores non-managed runtime PM handling and corrects the sequence of PM disable and usage count decrement to prevent these warnings. Additionally, the IRQ request handling is corrected to avoid lingering handlers after probe failures.

References

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