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authorCorinna Vinschen <corinna@vinschen.de>2009-03-24 16:42:36 +0000
committerCorinna Vinschen <corinna@vinschen.de>2009-03-24 16:42:36 +0000
commitba8f298cbca66df6f0df6573ec7756247173df16 (patch)
treed67ec1550c020689896dc7604fc8d025058dfe86 /winsup
parentdd15241df7df43a0b0a7391215d75171d88ddbfa (diff)
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* strfuncs.cc (sys_cp_mbstowcs): Don't read beyond src + nms.
Diffstat (limited to 'winsup')
-rw-r--r--winsup/cygwin/ChangeLog4
-rw-r--r--winsup/cygwin/strfuncs.cc3
2 files changed, 6 insertions, 1 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 6716b03ea..88131cb82 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,5 +1,9 @@
2009-03-24 Corinna Vinschen <corinna@vinschen.de>
+ * strfuncs.cc (sys_cp_mbstowcs): Don't read beyond src + nms.
+
+2009-03-24 Corinna Vinschen <corinna@vinschen.de>
+
* shared_info.h (CURR_SHARED_MAGIC): Update.
2009-03-24 Corinna Vinschen <corinna@vinschen.de>
diff --git a/winsup/cygwin/strfuncs.cc b/winsup/cygwin/strfuncs.cc
index 5a9dd7d14..9386d7885 100644
--- a/winsup/cygwin/strfuncs.cc
+++ b/winsup/cygwin/strfuncs.cc
@@ -423,12 +423,13 @@ sys_cp_mbstowcs (UINT cp, PWCHAR dst, size_t dlen, const char *src, size_t nms)
memset (&ps, 0, sizeof ps);
if (dst == NULL)
len = (size_t)-1;
- while (len > 0)
+ while (len > 0 && nms > 0)
{
/* ASCII SO. Convert following UTF-8 sequence (if not UTF-8 anyway). */
if (*pmbs == 0x0e && *charset != 'U'/*TF-8*/)
{
pmbs++;
+ --nms;
bytes = __utf8_mbtowc (_REENT, ptr, pmbs, nms, charset, &ps);
if (bytes < 0)
{