PATCH: gh#17227 heap-buffer-overflow

There were two problems this uncovered.  One was that a floating point
expression with both operands ints truncated before becoming floating.
One operand needs to be floating.

The second is that the expansion of a non-UTF-8 byte needs to be
considered based on non-UTF-8, rather than its UTF-8 representation.

1 files changed, 6 insertions, 1 deletions

diff --git a/t/op/tr_latin1.t b/t/op/tr_latin1.t
index 3cfe6f92a6..9d08652aaf 100644
--- a/t/op/tr_latin1.t
+++ b/t/op/tr_latin1.t
@@ -7,7 +7,7 @@ BEGIN {
     set_up_inc('../lib');
 }
 
-plan tests => 1;
+plan tests => 2;
 
 { # This test is malloc senstive.  Right now on some platforms anyway, space
   # for the final \xff needs to be mallocd, and that's what caused the
@@ -18,4 +18,9 @@ plan tests => 1;
 
 }
 
+{   # gh#17277.  This caused errors with valgrind and asan
+    fresh_perl_is('no warnings qw(void uninitialized); s~~00~-y~Ë0~\x{E00}~',
+                  "", {}, 'gh#17227');
+}
+
 1;