From: Vsevolod Stakhov <vsevolod@rspamd.com>
Date: Fri, 15 Jul 2022 21:26:54 +0000 (+0100)
Subject: [Minor] Try to fix unpadded base32 decoding
X-Git-Tag: 3.3~130
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=ca32640e2372f97314dc65e9b40af718588753d6;p=rspamd.git

[Minor] Try to fix unpadded base32 decoding
---

diff --git a/src/libutil/str_util.c b/src/libutil/str_util.c
index 81679c2e6..849d11a4f 100644
--- a/src/libutil/str_util.c
+++ b/src/libutil/str_util.c
@@ -1008,7 +1008,7 @@ rspamd_decode_base32_buf (const gchar *in, gsize inlen, guchar *out, gsize outle
 			}
 		}
 
-		if (processed_bits > 0 && o < end) {
+		if (processed_bits > 0 && o < end && acc != 0) {
 			*o++ = (acc & 0xFF);
 		}
 		else if (o > end) {