CVE-2026-42546
Description
A flaw was found in OP-TEE, a Trusted Execution Environment (TEE) for Arm Cortex-A cores. A resource leak exists in the shared memory cleanup logic where the system fails to properly release memory objects when processing non-contiguous memory parameters from a normal-world caller. Over time, these accumulated leaks consume the secure-world heap, leading to a degradation of trusted application operations and eventually requiring a system reboot. This can result in a Denial of Service (DoS).
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
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.
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