CVE-2026-23469
Description
A flaw was found in the Linux kernel's drm/imagination driver. This vulnerability arises from a race condition where the runtime Power Management (PM) suspend callback does not wait for the Interrupt Request (IRQ) handler to complete before suspending the Graphics Processing Unit (GPU). This timing issue can lead to the IRQ handler attempting to access GPU registers while the GPU is suspended, resulting in a kernel crash and a Denial of Service (DoS) for the system.
Understanding the Weakness (CWE)
Integrity,Confidentiality,Availability
Technical Impact: Modify Application Data; Modify Memory; DoS: Crash, Exit, or Restart; Execute Unauthorized Code or Commands
It may be possible to cause data corruption and possibly execute arbitrary code by modifying global variables or data structures at unexpected times, violating the assumptions of code that uses this global data.
Access Control
Technical Impact: Gain Privileges or Assume Identity
If a signal handler interrupts code that is executing with privileges, it may be possible that the signal handler will also be executed with elevated privileges, possibly making subsequent exploits more severe.
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
