bpf: btf: Check array t->size

[linux-2.6-block.git] / kernel / bpf / btf.c

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 3d20aa1f4b543194a34724f193ae8f78df016222..84ad532f28547c2a96c5998ec9a79422bc37503d 100644 (file)
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -1342,6 +1342,11 @@ static s32 btf_array_check_meta(struct btf_verifier_env *env,
                return -EINVAL;
        }
 
+       if (t->size) {
+               btf_verifier_log_type(env, t, "size != 0");
+               return -EINVAL;
+       }
+
        /* Array elem type and index type cannot be in type void,
         * so !array->type and !array->index_type are not allowed.
         */