Deep in the bowels of creating new and exciting bugs, I managed to

segfault the uninitialised value reporting code. This protects against
the segfault.

p4raw-id: //depot/perl@27818

1 files changed, 3 insertions, 1 deletions

diff --git a/sv.c b/sv.c
index 08d9b6a48c..8171c7fa51 100644
--- a/sv.c
+++ b/sv.c
@@ -12089,8 +12089,10 @@ S_find_uninit_var(pTHX_ OP* obase, SV* uninit_sv, bool match)
 	 * or are optimized away, then it's unambiguous */
 	o2 = NULL;
 	for (kid=o; kid; kid = kid->op_sibling) {
+	    SV *sv;
 	    if (kid &&
-		(    (kid->op_type == OP_CONST && SvOK(cSVOPx_sv(kid)))
+		(    (kid->op_type == OP_CONST && (sv = cSVOPx_sv(kid))
+		      && SvOK(sv))
 		  || (kid->op_type == OP_NULL  && ! (kid->op_flags & OPf_KIDS))
 		  || (kid->op_type == OP_PUSHMARK)
 		)