[linux-morello] Re: [PATCH v3 08/13] bpf: compat64: handle bpf_{btf,prog,link}_info

On 26/09/2023 12:02, Zachary Leaf wrote:

[...]

@@ -4232,9 +4368,9 @@ static int bpf_prog_get_info_by_fd(struct file *file, } done:

• if (copy_to_user(uinfo, &info, info_len) ||

•    put_user(info_len, &uattr->info.info_len))
  

• return -EFAULT;
  

• err = copy_bpf_prog_info_to_user(attr, uattr, &info, &info_len);
• if (err)

• return err;
  

Nit: we could also keep if (copy_bpf_...()) return -EFAULT in such places, like in btf_get_info_by_fd().

Kevin