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| author | trinity-1686a <trinity@deuxfleurs.fr> | 2023-11-15 02:01:34 +0100 |
|---|---|---|
| committer | trinity-1686a <trinity@deuxfleurs.fr> | 2023-11-15 02:01:34 +0100 |
| commit | f2ddfdd50e52f9a6aa4afafccb5ad5e04f79e2cc (patch) | |
| tree | 6740885162f09afa6c60985b67df1f612f1a082d | |
| parent | cec6f9919d3128646d85c75d08338bea4b31bffa (diff) | |
| download | tor-f2ddfdd50e52f9a6aa4afafccb5ad5e04f79e2cc.tar.gz tor-f2ddfdd50e52f9a6aa4afafccb5ad5e04f79e2cc.zip | |
add sanity check in tor_memmem
it's believed most libc already have those, but just in case, it can't
hurt
| -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 |