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authorbapt <bapt@FreeBSD.org>2015-08-09 10:36:25 +0000
committerbapt <bapt@FreeBSD.org>2015-08-09 10:36:25 +0000
commit4f14f063cfe3d3f206f765549c6026fb89af9958 (patch)
tree5aa3b022300e2b77240a0fdf46ef1bcc19200df5 /lib/libc
parent32118b1361e1aa745c976e0e46503cdf0a063c45 (diff)
downloadFreeBSD-src-4f14f063cfe3d3f206f765549c6026fb89af9958.zip
FreeBSD-src-4f14f063cfe3d3f206f765549c6026fb89af9958.tar.gz
Readd checking utf16 surrogates that are invalid in utf8
Diffstat (limited to 'lib/libc')
-rw-r--r--lib/libc/locale/utf8.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/libc/locale/utf8.c b/lib/libc/locale/utf8.c
index 02b1ccc..11e7825 100644
--- a/lib/libc/locale/utf8.c
+++ b/lib/libc/locale/utf8.c
@@ -193,6 +193,13 @@ _UTF8_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
errno = EILSEQ;
return ((size_t)-1);
}
+ if (wch >= 0xd800 && wch <= 0xdfff) {
+ /*
+ * Malformed input; invalid code points.
+ */
+ errno = EILSEQ;
+ return ((size_t)-1);
+ }
if (pwc != NULL)
*pwc = wch;
us->want = 0;
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