patch 7.4.937
Problem: Segfault reading unitialized memory.
Solution: Do not read match \z0, it does not exist. (Marius Gedminas, closes
#497)
diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
index a21c3c0..32108be 100644
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -6947,7 +6947,8 @@
{
cleanup_zsubexpr();
re_extmatch_out = make_extmatch();
- for (i = 0; i < subs.synt.in_use; i++)
+ /* Loop over \z1, \z2, etc. There is no \z0. */
+ for (i = 1; i < subs.synt.in_use; i++)
{
if (REG_MULTI)
{
diff --git a/src/version.c b/src/version.c
index 9f0cfbf..82e5f35 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 937,
+/**/
936,
/**/
935,
