2 files changed, 8 insertions, 3 deletions
diff --git a/modules/pam_unix/md5.c b/modules/pam_unix/md5.c
index 94f0485b..9954536f 100644
--- a/modules/pam_unix/md5.c
+++ b/modules/pam_unix/md5.c
@@ -24,13 +24,16 @@
 #ifndef HIGHFIRST
 #define byteReverse(buf, len)	/* Nothing */
 #else
-static void byteReverse(unsigned char *buf, unsigned longs);
+
+typedef unsigned char PAM_ATTRIBUTE_ALIGNED(4) uint8_aligned;
+
+static void byteReverse(uint8_aligned *buf, unsigned longs);
 
 #ifndef ASM_MD5
 /*
  * Note: this code is harmless on little-endian machines.
  */
-static void byteReverse(unsigned char *buf, unsigned longs)
+static void byteReverse(uint8_aligned *buf, unsigned longs)
 {
 	uint32 t;
 	do {
diff --git a/modules/pam_unix/md5.h b/modules/pam_unix/md5.h
index 103f168a..d9186b7f 100644
--- a/modules/pam_unix/md5.h
+++ b/modules/pam_unix/md5.h
@@ -2,12 +2,14 @@
 #ifndef MD5_H
 #define MD5_H
 
+#include "pam_cc_compat.h"
+
 typedef unsigned int uint32;
 
 struct MD5Context {
 	uint32 buf[4];
 	uint32 bits[2];
-	unsigned char in[64];
+	unsigned char in[64] PAM_ATTRIBUTE_ALIGNED(4);
 };
 
 void GoodMD5Init(struct MD5Context *);