From: Marco Bettini <marco.bettini@open-xchange.com>
Date: Mon, 12 Jan 2026 15:59:29 +0000 (+0000)
Subject: lib: quoted_printable_q_decode() - Use explicit type conversion to fix ubsan errors
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=66f004439718c7f5189222ddb487d892a86d6d40;p=thirdparty%2Fdovecot%2Fcore.git

lib: quoted_printable_q_decode() - Use explicit type conversion to fix ubsan errors
---

diff --git a/src/lib-mail/quoted-printable.c b/src/lib-mail/quoted-printable.c
index 9bfbe35ca5..2bdae5a493 100644
--- a/src/lib-mail/quoted-printable.c
+++ b/src/lib-mail/quoted-printable.c
@@ -32,8 +32,8 @@ int quoted_printable_q_decode(const unsigned char *src, size_t src_size,
 			break;
 
 		/* =<hex> */
-		hexbuf[0] = src[src_pos+1];
-		hexbuf[1] = src[src_pos+2];
+		hexbuf[0] = (char) src[src_pos+1];
+		hexbuf[1] = (char) src[src_pos+2];
 
 		if (hex_to_binary(hexbuf, dest) == 0) {
 			src_pos += 2;