CVE-2026-23429
Description
A flaw was found in the Linux kernel. Specifically, within the input/output memory management unit (IOMMU) subsystem, a memory management error can occur. When the iommu_sva_unbind_device() function is called, it may attempt to access a memory area that has already been freed. This can lead to a system crash, resulting in a denial of service for affected systems.
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
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