Linux Kernel Blob Property Reference Tracking Vulnerability in Color Operations

A vulnerability in the Linux kernel's handling of color operation state blob properties has been addressed. This issue, present in the stable branch, involved memory leaks during the duplication, destruction, and reset of state operations. The color operation implementation did not adhere to the established reference pattern used for DEGAMMA and GAMMA blob properties, leading to improper memory management. The vulnerability has been fixed by introducing a new helper function to correctly manage blob references, ensuring proper reference counting and alignment with the established practices in the DRM subsystem.

Impact

The vulnerability could lead to memory leaks by improperly managing references to blob properties, potentially causing increased memory usage and degradation of system performance over time.