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Range check in pm_constant_id_lookup

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Nobuyoshi Nakada 2023-11-09 16:39:49 +09:00
parent e824b69a86
commit 0f02fbd9ff
1 changed files with 3 additions and 0 deletions
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3
prism_compile.c
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@ -719,6 +719,9 @@ pm_lookup_local_index_with_depth(rb_iseq_t *iseq, pm_scope_node_t *scope_node, p
static ID static ID
pm_constant_id_lookup(pm_scope_node_t *scope_node, pm_constant_id_t constant_id) pm_constant_id_lookup(pm_scope_node_t *scope_node, pm_constant_id_t constant_id)
{ {
if (constant_id < 1 || constant_id > scope_node->parser->constant_pool.size) {
rb_raise(rb_eArgError, "[PRISM] constant_id out of range: %u", (unsigned int)constant_id);
}
return scope_node->constants[constant_id - 1]; return scope_node->constants[constant_id - 1];
} }