Fix allocated_len calculation found by fuzz testing.

diff --git a/src/libutil/util.c b/src/libutil/util.c
index 2a64b9c10615e6fab352ee92af61eb2033fcdb5e..4a125c5602aade8d322781b0535906927e5f0335 100644 (file)
--- a/src/libutil/util.c
+++ b/src/libutil/util.c
@@ -2203,7 +2203,7 @@ rspamd_decode_base32 (const gchar *in, gsize inlen, gsize *outlen)
        guchar c;
        guint acc = 0U;
        guint processed_bits = 0;
-       gsize olen = 0, i, allocated_len = inlen / 8 * 5 + 2;
+       gsize olen = 0, i, allocated_len = inlen * 5 / 8 + 2;
 
        res = g_malloc (allocated_len);