CVE-2024-47728 is a medium severity vulnerability in the Linux kernel's BPF subsystem. It addresses an issue where certain BPF helper functions did not zero out pointer arguments on error, potentially leading to memory leakage. The fix ensures that for non-tracing helpers with ARG_PTR_TO_{LONG,INT} arguments, these values are zeroed on error. The vulnerability does not affect tracing helpers due to existing kernel permissions. Additional changes involve handling of MTU helper pointer values to prevent uninitialized memory usage. No known exploits are reported, and no affected versions are explicitly stated.