CVE-2024-26883 bpf: Fix stackmap overflow check on 32-bit arches

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stackmap overflow check on 32-bit arches The stackmap code relies on rounduppowoftwo to compute the number of hash buckets, and contains an overflow check by checking if the resulting value is 0. However, on 32-bit arche...