diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index b749c01742ee..bfa64ae6c94d 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -6206,6 +6206,13 @@ bpf_object__relocate_core(struct bpf_object *obj, const char *targ_btf_path)
 				return -EINVAL;
 			insn = &prog->insns[insn_idx];
 
+			if (is_ldimm64_insn(insn) && (size_t)insn_idx + 1 >= prog->insns_cnt) {
+				pr_warn("prog '%s': relo #%d: insn #%d (LDIMM64) is truncated\n",
+					prog->name, i, insn_idx);
+				err = -EINVAL;
+				goto out;
+			}
+
 			err = record_relo_core(prog, rec, insn_idx);
 			if (err) {
 				pr_warn("prog '%s': relo #%d: failed to record relocation: %s\n",