Linux Kernel ath11k Refcount Leak Vulnerability

A vulnerability in the Linux kernel's ath11k driver was addressed by adding a missing reference count management function. The issue involved a refcount leak caused by not properly releasing a node pointer obtained through device tree node lookup functions. This leak could potentially lead to memory management issues.

Impact

The vulnerability could cause a memory refcount leak, which might lead to improper memory management and potential exploitation scenarios, such as use-after-free vulnerabilities.