Linux Kernel brcmfmac PCIE Memory Leak Vulnerability

A vulnerability in the Linux kernel's brcmfmac PCIE component could lead to a memory leak. This issue arises because, in the error handling path of the brcmf_pcie_setup function, the firmware is not properly released if the brcmf_chip_get_raminfo function fails. Although the CLM blob is released when the device is removed, the failure to release firmware in the error path can cause unnecessary memory retention.

Impact

Exploitation of this vulnerability can result in a memory leak, potentially leading to increased memory usage and degradation of system performance.