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perl/perl-regexp-refoverflow.diff

12 lines
441 B
Diff

--- ./regcomp.c.orig 2014-05-26 13:34:20.000000000 +0000
+++ ./regcomp.c 2014-06-02 14:39:25.188429940 +0000
@@ -9771,7 +9771,7 @@ S_reg(pTHX_ RExC_state_t *pRExC_state, I
ret = reganode(pRExC_state, GOSUB, num);
if (!SIZE_ONLY) {
- if (num > (I32)RExC_rx->nparens) {
+ if (num < 0 || num > (I32)RExC_rx->nparens) {
RExC_parse++;
vFAIL("Reference to nonexistent group");
}