CVE-2024-36883 net: fix out-of-bounds access in ops_init

In the Linux kernel, the following vulnerability has been resolved: net: fix out-of-bounds access in opsinit netallocgeneric is called by netalloc, which is called without any locking. It reads maxgenptrs, which is changed under pernetopsrwsem. It is read twice, first to allocate an array, then t...