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| author | brooks <brooks@FreeBSD.org> | 2016-01-20 19:26:04 +0000 |
|---|---|---|
| committer | brooks <brooks@FreeBSD.org> | 2016-01-20 19:26:04 +0000 |
| commit | 6ef41be39c6d896d6c5919661540ce76614b6e9e (patch) | |
| tree | 54dd9454264e20b8a8a7b8001c564e44b646565e /lib | |
| parent | b0b221cc1e6bae709580b9aceb2384f65661d757 (diff) | |
| download | FreeBSD-src-6ef41be39c6d896d6c5919661540ce76614b6e9e.zip FreeBSD-src-6ef41be39c6d896d6c5919661540ce76614b6e9e.tar.gz | |
MFC r293856:
Avoid reading pass the end of the source buffer when it is not NUL
terminated.
If this buffer is adjacent to an unmapped page or a version of C with
bounds checked is used this may result in a crash.
PR: 206178
Submitted by: Alexander Cherepanov <cherepan@mccme.ru>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/string/wcslcat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libc/string/wcslcat.c b/lib/libc/string/wcslcat.c index f5f1e1e..2df9477 100644 --- a/lib/libc/string/wcslcat.c +++ b/lib/libc/string/wcslcat.c @@ -54,7 +54,7 @@ wcslcat(wchar_t *dst, const wchar_t *src, size_t siz) size_t dlen; /* Find the end of dst and adjust bytes left but don't go past end */ - while (*d != '\0' && n-- != 0) + while (n-- != 0 && *d != '\0') d++; dlen = d - dst; n = siz - dlen; |
