diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index 4b38c9799087258202aa3d86c31f2b64cb8e330b..197d8252ffc65ab040edcd7a52692ee6f3215381 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -8498,7 +8498,7 @@ bool btf_nested_type_is_trusted(struct bpf_verifier_log *log, tname = btf_name_by_offset(btf, walk_type->name_off); ret = snprintf(safe_tname, sizeof(safe_tname), "%s%s", tname, suffix); - if (ret < 0) + if (ret >= sizeof(safe_tname)) return false; safe_id = btf_find_by_name_kind(btf, safe_tname, BTF_INFO_KIND(walk_type->info));