CyberRota Analysis
AI-GeneratedThe vulnerability in the Linux kernel affects the nfp (Network Function Platform) component, where a failure to allocate a mutex handle can lead to dereferencing a NULL pointer during resource acquisition. This can result in system instability or crashes, making it critical for organizations utilizing Linux in network function applications to prioritize this issue. Immediate attention is recommended for system administrators and developers managing affected environments to mitigate potential disruptions.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: nfp: Check resource mutex allocation nfp_cpp_resource_find() allocates a CPP mutex handle for the matching resource-table entry and then reports success. nfp_resource_try_acquire() immediately passes that handle to nfp_cpp_mutex_trylock(). However, nfp_cpp_mutex_alloc() returns NULL on failure. If that happens for a matching table entry, the resource lookup still returns success and the following trylock dereferences a NULL mutex pointer while opening the resource. nfp_resource_acquire() already treats failure to allocate the table mutex as -ENOMEM. Do the same for the resource mutex and fail the lookup before publishing the rest of the resource handle. This issue was found by a static analysis checker and confirmed by manual source review.