diff -up libsndfile-1.0.28/src/ogg.c.cve-2024-50612prereq libsndfile-1.0.28/src/ogg.c
--- libsndfile-1.0.28/src/ogg.c.cve-2024-50612prereq	2017-04-01 09:18:02.000000000 +0200
+++ libsndfile-1.0.28/src/ogg.c	2024-11-26 15:06:33.595446443 +0100
@@ -45,6 +45,16 @@ static int	ogg_stream_classify (SF_PRIVA
 static int	ogg_page_classify (SF_PRIVATE * psf, const ogg_page * og) ;
 
 int
+ogg_write_page (SF_PRIVATE *psf, ogg_page *page)
+{	int bytes ;
+
+	bytes = psf_fwrite (page->header, 1, page->header_len, psf) ;
+	bytes += psf_fwrite (page->body, 1, page->body_len, psf) ;
+
+	return bytes == page->header_len + page->body_len ;
+} /* ogg_write_page */
+
+int
 ogg_open (SF_PRIVATE *psf)
 {	OGG_PRIVATE* odata = calloc (1, sizeof (OGG_PRIVATE)) ;
 	sf_count_t pos = psf_ftell (psf) ;
diff -up libsndfile-1.0.28/src/ogg.h.cve-2024-50612prereq libsndfile-1.0.28/src/ogg.h
--- libsndfile-1.0.28/src/ogg.h.cve-2024-50612prereq	2024-11-26 15:06:45.023560621 +0100
+++ libsndfile-1.0.28/src/ogg.h	2024-11-26 15:06:57.731687587 +0100
@@ -48,5 +48,10 @@ typedef struct
 								(buf [base] & 0xff))
 
 
+/*
+** Write the whole Ogg page out. Convenience function as the ogg_page struct
+** splits header and body data into separate buffers.
+*/
+int	ogg_write_page	(SF_PRIVATE *, ogg_page *) ;
 
 #endif /* SF_SRC_OGG_H */
diff -up libsndfile-1.0.28/src/ogg_vorbis.c.cve-2024-50612prereq libsndfile-1.0.28/src/ogg_vorbis.c
--- libsndfile-1.0.28/src/ogg_vorbis.c.cve-2024-50612prereq	2017-04-01 09:18:02.000000000 +0200
+++ libsndfile-1.0.28/src/ogg_vorbis.c	2024-11-26 15:06:33.595446443 +0100
@@ -423,8 +423,7 @@ vorbis_write_header (SF_PRIVATE *psf, in
 		 * audio data will start on a new page, as per spec
 		 */
 		while ((result = ogg_stream_flush (&odata->ostream, &odata->opage)) != 0)
-		{	psf_fwrite (odata->opage.header, 1, odata->opage.header_len, psf) ;
-			psf_fwrite (odata->opage.body, 1, odata->opage.body_len, psf) ;
+		{	ogg_write_page (psf, &odata->opage) ;
 			} ;
 	}
 
@@ -463,8 +462,7 @@ vorbis_close (SF_PRIVATE *psf)
 				while (!odata->eos)
 				{	int result = ogg_stream_pageout (&odata->ostream, &odata->opage) ;
 					if (result == 0) break ;
-					psf_fwrite (odata->opage.header, 1, odata->opage.header_len, psf) ;
-					psf_fwrite (odata->opage.body, 1, odata->opage.body_len, psf) ;
+					ogg_write_page (psf, &odata->opage) ;
 
 		/* this could be set above, but for illustrative purposes, I do
 		   it here (to show that vorbis does know where the stream ends) */
@@ -778,8 +776,7 @@ vorbis_write_samples (SF_PRIVATE *psf, O
 			{	int result = ogg_stream_pageout (&odata->ostream, &odata->opage) ;
 				if (result == 0)
 					break ;
-				psf_fwrite (odata->opage.header, 1, odata->opage.header_len, psf) ;
-				psf_fwrite (odata->opage.body, 1, odata->opage.body_len, psf) ;
+				ogg_write_page (psf, &odata->opage) ;
 
 				/*	This could be set above, but for illustrative purposes, I do
 				**	it here (to show that vorbis does know where the stream ends) */