applying:

0000054: Tab completing filenames in ash causes SEGV
	Simple tab completion operations cause busybox (ash) to
	access illegal addresses.

shell/cmdedit.c

@@ -782,8 +782,8 @@ static int match_compare(const void *a, const void *b)
 #define QUOT    (UCHAR_MAX+1)
 
 #define collapse_pos(is, in) { \
-	memcpy(int_buf+(is), int_buf+(in), (BUFSIZ+1-(is)-(in))*sizeof(int)); \
-	memcpy(pos_buf+(is), pos_buf+(in), (BUFSIZ+1-(is)-(in))*sizeof(int)); }
+	memmove(int_buf+(is), int_buf+(in), (BUFSIZ+1-(is)-(in))*sizeof(int)); \
+	memmove(pos_buf+(is), pos_buf+(in), (BUFSIZ+1-(is)-(in))*sizeof(int)); }
 
 static int find_match(char *matchBuf, int *len_with_quotes)
 {