VulnerabilityPublished 24 Apr 2026Updated 5 Nov 2026

CVE-2026-31572: Linux kernel · i2c: designware: amdisp: Fix resume-probe race condition issue

Affects Linux kernelSource CVE Database V5

Compare

Not known to be exploited · fixed in e81f0341754c309e33babea2821eda8f98f0b44c : update Linux kernel when convenient.

Data as of 5 Nov 2026, 22:05 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch

Available – fixed in e81f0341754c309e33babea2821eda8f98f0b44c, e2f1ada8e089dd5a331bcd8b88125ae2af8d188f, 83bcea9da91965484df64a6492b89e65d41ab31c

Exploitation evidence

Disclosed: evidence found.
CVE published 24 Apr 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 5 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.

What to do

Upgrade Linux kernel to e81f0341754c309e33babea2821eda8f98f0b44c, e2f1ada8e089dd5a331bcd8b88125ae2af8d188f or 83bcea9da91965484df64a6492b89e65d41ab31c.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ d6263c468a761cd4c89887073614394ac48441e1, < e81f0341754c309e33babea2821eda8f98f0b44c	Fixed in e81f0341754c309e33babea2821eda8f98f0b44c
LinuxLinux	Affected ≥ d6263c468a761cd4c89887073614394ac48441e1, < e2f1ada8e089dd5a331bcd8b88125ae2af8d188f	Fixed in e2f1ada8e089dd5a331bcd8b88125ae2af8d188f
LinuxLinux	Affected ≥ d6263c468a761cd4c89887073614394ac48441e1, < 83bcea9da91965484df64a6492b89e65d41ab31c	Fixed in 83bcea9da91965484df64a6492b89e65d41ab31c
LinuxLinux	Affected =6.16	Fixed in–

AI-suggested

A fix is available in the Linux kernel as indicated by the fixed commit versions. Users should update to a Linux kernel version that includes the commits e81f0341754c309e33babea2821eda8f98f0b44c, e2f1ada8e089dd5a331bcd8b88125ae2af8d188f, or 83bcea9da91965484df64a6492b89e65d41ab31c to resolve this race condition. No additional mitigation is required once the patch is applied.

Description

A race condition vulnerability was identified and fixed in the Linux kernel's i2c designware amdisp driver. The issue arises from a resume-probe race condition where the ISP power state is not properly managed during device probe, leading to a NULL pointer dereference. The fix involves using genpd APIs to control ISP power state explicitly during probe and properly managing runtime power management states.

Impact

The race condition can lead to a NULL pointer dereference during device probe, which may cause kernel instability or crashes. This affects the reliability of the affected Linux kernel version when using the i2c designware amdisp driver with runtime power management of the ISP device.

Summary

CVE-2026-31572 addresses a race condition in the Linux kernel's i2c designware amdisp driver related to the power management of the ISP device. The vulnerability stems from the pm_runtime_get_sync() call triggering a PM resume that powers on the ISP and invokes the amdisp i2c runtime resume before the probe completes, causing a race condition and NULL dereferencing. The fix replaces this with direct use of genpd APIs to power on the ISP before probe and power it off after, sets the device to suspended state, and enables runtime PM only after full initialization. This issue was present since kernel version 6.16 and was fixed in commits e81f0341754c309e33babea2821eda8f98f0b44c, e2f1ada8e089dd5a331bcd8b88125ae2af8d188f, and 83bcea9da91965484df64a6492b89e65d41ab31c.

References

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 5 Nov 2026, 22:05 UTC

Technical details

References

Community reviews

Related threats