CVE-2026-45989
Description
A flaw was found in the Linux kernel, specifically within the testdrv_probe() function. This vulnerability, known as a use-after-free, occurs because the system prematurely releases a memory reference and then attempts to access that freed memory. This can be triggered by a local user, potentially leading to system instability, crashes, or in certain situations, allowing an attacker to execute unauthorized code.
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
An adversary that can cause a resource counter to become inaccurate may be able to create situations where resources are not accounted for and not released, thus causing resources to become scarce for future needs.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
An adversary that can cause a resource counter to become inaccurate may be able to force an error that causes the product to crash or exit out of its current operation.
Frequently Asked Questions
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