diff options
Diffstat (limited to 'src/lib/string/util_string.c')
| -rw-r--r-- | src/lib/string/util_string.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/lib/string/util_string.c b/src/lib/string/util_string.c index b1c0a11439..60b5933e4d 100644 --- a/src/lib/string/util_string.c +++ b/src/lib/string/util_string.c @@ -31,6 +31,8 @@ tor_memmem(const void *_haystack, size_t hlen, { #if defined(HAVE_MEMMEM) && (!defined(__GNUC__) || __GNUC__ >= 2) raw_assert(nlen); + if (nlen > hlen) + return NULL; return memmem(_haystack, hlen, _needle, nlen); #else /* This isn't as fast as the GLIBC implementation, but it doesn't need to |