CVE-2023-53790 bpf: Zeroing allocated object from slab in bpf memory allocator

In the Linux kernel, the following vulnerability has been resolved: bpf: Zeroing allocated object from slab in bpf memory allocator Currently the freed element in bpf memory allocator may be immediately reused, for htab map the reuse will reinitialize special fields in map value e.g., bpfspinlock...