Linux Kernel RDMA/irdma Integer Underflow Vulnerability

An integer underflow vulnerability has been identified in the Linux kernel's RDMA/irdma component. The issue arises in the 'irdma_sc_ceq_init()' function within the 'ctrl.c' file, where a subtraction operation could potentially underflow. This vulnerability is linked to the 'max_ceqs' value, which is derived from the firmware and could be zero, leading to the underflow condition.

Impact

Exploitation of this vulnerability could lead to unintended behavior in the RDMA/irdma component, potentially causing memory corruption or other related issues.