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| author | Vsevolod Stakhov <vsevolod@highsecure.ru> | 2019-09-25 13:59:19 +0100 |
|---|---|---|
| committer | Vsevolod Stakhov <vsevolod@highsecure.ru> | 2019-09-25 13:59:19 +0100 |
| commit | 6f927c7c623f24684ed917c1a0afc89b0d2b77cb (patch) | |
| tree | 2a1f64145af9b2c2c42451a998f3c93dc84dd79d /contrib/lc-btrie/btrie.c | |
| parent | 8cd410a8caf15016f3edecb00a67d3c6f0dfa584 (diff) | |
| download | rspamd-6f927c7c623f24684ed917c1a0afc89b0d2b77cb.tar.gz rspamd-6f927c7c623f24684ed917c1a0afc89b0d2b77cb.zip | |
[Minor] Avoid out-of-boundary read in btrie
Submitted by: @citrin
Diffstat (limited to 'contrib/lc-btrie/btrie.c')
| -rw-r--r-- | contrib/lc-btrie/btrie.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/contrib/lc-btrie/btrie.c b/contrib/lc-btrie/btrie.c index b1c66f1c3..8b598b09b 100644 --- a/contrib/lc-btrie/btrie.c +++ b/contrib/lc-btrie/btrie.c @@ -658,7 +658,8 @@ static inline int prefixes_equal(const btrie_oct_t *pfx1, const btrie_oct_t *pfx2, unsigned len) { return (memcmp (pfx1, pfx2, len / 8) == 0 - && ((pfx1[len / 8] ^ pfx2[len / 8]) & high_bits (len % 8)) == 0); + && (len % 8 == 0 || + ((pfx1[len / 8] ^ pfx2[len / 8]) & high_bits (len % 8)) == 0)); } /* determine length of longest common subprefix */ |