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-rw-r--r--regparse.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/regparse.c b/regparse.c
index 774ee0a960..fac79a311b 100644
--- a/regparse.c
+++ b/regparse.c
@@ -978,6 +978,8 @@ scan_env_add_mem_entry(ScanEnv* env)
Node** p;
need = env->num_mem + 1;
+ if (need > ONIG_MAX_CAPTURE_GROUP_NUM)
+ return ONIGERR_TOO_MANY_CAPTURE_GROUPS;
if (need >= SCANENV_MEMNODES_SIZE) {
if (env->mem_alloc <= need) {
if (IS_NULL(env->mem_nodes_dynamic)) {