CyberRota Analysis
AI-GeneratedThe Linux kernel's libertas driver contains a vulnerability that results in a memory leak during the firmware download process due to the failure to free a single-stage firmware image after an asynchronous load. This issue could lead to increased memory consumption, potentially affecting system performance over time. Users and administrators of systems utilizing the libertas driver, particularly those managing wireless USB devices, should prioritize addressing this vulnerability to maintain optimal system stability.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: fix memory leak in helper_firmware_cb() helper_firmware_cb() neglects to free the single-stage firmware image after a successful async load, leading to a memory leak in the USB firmware-download path. Fix this memory leak by calling release_firmware() immediately after lbs_fw_loaded() returns. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in the current wireless tree. An x86_64 allyesconfig build showed no new warnings. As we do not have compatible Libertas USB hardware for exercising this firmware-download path, no runtime testing was able to be performed.