diff --git a/sql/item_cmpfunc.cc b/sql/item_cmpfunc.cc index 192e06566ff..5a3e028260f 100644 --- a/sql/item_cmpfunc.cc +++ b/sql/item_cmpfunc.cc @@ -5237,7 +5237,7 @@ int Regexp_processor_pcre::pcre_exec_with_warn(const pcre *code, bool Regexp_processor_pcre::exec(const char *str, int length, int offset) { - m_pcre_exec_rc= pcre_exec_with_warn(m_pcre, NULL, str, length, offset, 0, + m_pcre_exec_rc= pcre_exec_with_warn(m_pcre, &m_pcre_extra, str, length, offset, 0, m_SubStrVec, m_subpatterns_needed * 3); return false; } @@ -5248,7 +5248,7 @@ bool Regexp_processor_pcre::exec(String *str, int offset, { if (!(str= convert_if_needed(str, &subject_converter))) return true; - m_pcre_exec_rc= pcre_exec_with_warn(m_pcre, NULL, + m_pcre_exec_rc= pcre_exec_with_warn(m_pcre, &m_pcre_extra, str->c_ptr_safe(), str->length(), offset, 0, m_SubStrVec, m_subpatterns_needed * 3); diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h index b84cb26fb9c..bd552bfc952 100644 --- a/sql/item_cmpfunc.h +++ b/sql/item_cmpfunc.h @@ -1550,6 +1550,7 @@ public: class Regexp_processor_pcre { pcre *m_pcre; + pcre_extra m_pcre_extra; bool m_conversion_is_needed; bool m_is_const; int m_library_flags; @@ -1574,7 +1575,10 @@ public: m_data_charset(&my_charset_utf8_general_ci), m_library_charset(&my_charset_utf8_general_ci), m_subpatterns_needed(0) - {} + { + m_pcre_extra.flags= PCRE_EXTRA_MATCH_LIMIT_RECURSION; + m_pcre_extra.match_limit_recursion= 100L; + } int default_regex_flags(); void init(CHARSET_INFO *data_charset, int extra_flags, uint nsubpatterns) {