diff --git a/libtiff/tif_fax3.c b/libtiff/tif_fax3.c
index cd8e4ef2..9ab5b26a 100644
--- a/libtiff/tif_fax3.c
+++ b/libtiff/tif_fax3.c
@@ -610,15 +610,19 @@ Fax3SetupState(TIFF* tif)
  */
 
 #define	Fax3FlushBits(tif, sp) {				\
-	if ((tif)->tif_rawcc >= (tif)->tif_rawdatasize)		\
-		(void) TIFFFlushData1(tif);			\
+	if ((tif)->tif_rawcc >= (tif)->tif_rawdatasize) {	\
+		if( !TIFFFlushData1(tif) )			\
+			return 0;				\
+        }							\
 	*(tif)->tif_rawcp++ = (uint8) (sp)->data;		\
 	(tif)->tif_rawcc++;					\
 	(sp)->data = 0, (sp)->bit = 8;				\
 }
 #define	_FlushBits(tif) {					\
-	if ((tif)->tif_rawcc >= (tif)->tif_rawdatasize)		\
-		(void) TIFFFlushData1(tif);			\
+	if ((tif)->tif_rawcc >= (tif)->tif_rawdatasize) {	\
+		if( !TIFFFlushData1(tif) )			\
+			return 0;				\
+        }							\
 	*(tif)->tif_rawcp++ = (uint8) data;		\
 	(tif)->tif_rawcc++;					\
 	data = 0, bit = 8;					\
@@ -643,7 +647,7 @@ static const int _msbmask[9] =
  * the output stream.  Values are
  * assumed to be at most 16 bits.
  */
-static void
+static int
 Fax3PutBits(TIFF* tif, unsigned int bits, unsigned int length)
 {
 	Fax3CodecState* sp = EncoderState(tif);
@@ -654,6 +658,7 @@ Fax3PutBits(TIFF* tif, unsigned int bits, unsigned int length)
 
 	sp->data = data;
 	sp->bit = bit;
+        return 1;
 }
 
 /*
@@ -678,7 +683,7 @@ Fax3PutBits(TIFF* tif, unsigned int bits, unsigned int length)
  * appropriate table that holds the make-up and
  * terminating codes is supplied.
  */
-static void
+static int
 putspan(TIFF* tif, int32 span, const tableentry* tab)
 {
 	Fax3CodecState* sp = EncoderState(tif);
@@ -716,6 +721,8 @@ putspan(TIFF* tif, int32 span, const tableentry* tab)
 
 	sp->data = data;
 	sp->bit = bit;
+
+        return 1;
 }
 
 /*
@@ -724,7 +731,7 @@ putspan(TIFF* tif, int32 span, const tableentry* tab)
  * here.  We also handle writing the tag bit for the next
  * scanline when doing 2d encoding.
  */
-static void
+static int
 Fax3PutEOL(TIFF* tif)
 {
 	Fax3CodecState* sp = EncoderState(tif);
@@ -758,6 +765,8 @@ Fax3PutEOL(TIFF* tif)
 
 	sp->data = data;
 	sp->bit = bit;
+
+        return 1;
 }
 
 /*
@@ -1007,12 +1016,14 @@ Fax3Encode1DRow(TIFF* tif, unsigned char* bp, uint32 bits)
 
 	for (;;) {
 		span = find0span(bp, bs, bits);		/* white span */
-		putspan(tif, span, TIFFFaxWhiteCodes);
+		if( !putspan(tif, span, TIFFFaxWhiteCodes) )
+                    return 0;
 		bs += span;
 		if (bs >= bits)
 			break;
 		span = find1span(bp, bs, bits);		/* black span */
-		putspan(tif, span, TIFFFaxBlackCodes);
+		if( !putspan(tif, span, TIFFFaxBlackCodes) )
+                    return 0;
 		bs += span;
 		if (bs >= bits)
 			break;
@@ -1064,21 +1075,28 @@ Fax3Encode2DRow(TIFF* tif, unsigned char* bp, unsigned char* rp, uint32 bits)
 			          (b1 < a1 && a1 - b1 <= 3U) ? -(int32)(a1 - b1) : 0x7FFFFFFF;
 			if (!(-3 <= d && d <= 3)) {	/* horizontal mode */
 				a2 = finddiff2(bp, a1, bits, PIXEL(bp,a1));
-				putcode(tif, &horizcode);
+				if( !putcode(tif, &horizcode) )
+                                    return 0;
 				if (a0+a1 == 0 || PIXEL(bp, a0) == 0) {
-					putspan(tif, a1-a0, TIFFFaxWhiteCodes);
-					putspan(tif, a2-a1, TIFFFaxBlackCodes);
+					if( !putspan(tif, a1-a0, TIFFFaxWhiteCodes) )
+                                            return 0;
+					if( !putspan(tif, a2-a1, TIFFFaxBlackCodes) )
+                                            return 0;
 				} else {
-					putspan(tif, a1-a0, TIFFFaxBlackCodes);
-					putspan(tif, a2-a1, TIFFFaxWhiteCodes);
+					if( !putspan(tif, a1-a0, TIFFFaxBlackCodes) )
+                                            return 0;
+					if( !putspan(tif, a2-a1, TIFFFaxWhiteCodes) )
+                                            return 0;
 				}
 				a0 = a2;
 			} else {			/* vertical mode */
-				putcode(tif, &vcodes[d+3]);
+				if( !putcode(tif, &vcodes[d+3]) )
+                                    return 0;
 				a0 = a1;
 			}
 		} else {				/* pass mode */
-			putcode(tif, &passcode);
+			if( !putcode(tif, &passcode) )
+                            return 0;
 			a0 = b2;
 		}
 		if (a0 >= bits)
@@ -1107,7 +1125,10 @@ Fax3Encode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s)
 	}
 	while (cc > 0) {
 		if ((sp->b.mode & FAXMODE_NOEOL) == 0)
-			Fax3PutEOL(tif);
+                {
+			if( !Fax3PutEOL(tif) )
+                            return 0;
+                }
 		if (is2DEncoding(sp)) {
 			if (sp->tag == G3_1D) {
 				if (!Fax3Encode1DRow(tif, bp, sp->b.rowpixels))
@@ -1144,8 +1165,8 @@ Fax3PostEncode(TIFF* tif)
 	return (1);
 }
 
-static void
-Fax3Close(TIFF* tif)
+static int
+_Fax3Close(TIFF* tif)
 {
 	if ((Fax3State(tif)->mode & FAXMODE_NORTC) == 0 && tif->tif_rawcp) {
 		Fax3CodecState* sp = EncoderState(tif);
@@ -1161,6 +1182,13 @@ Fax3Close(TIFF* tif)
 			Fax3PutBits(tif, code, length);
 		Fax3FlushBits(tif, sp);
 	}
+	return 1;
+}
+
+static void
+Fax3Close(TIFF* tif)
+{
+    _Fax3Close(tif);
 }
 
 static void
diff --git a/libtiff/tif_jpeg.c b/libtiff/tif_jpeg.c
index 74fbb16e..28d08e37 100644
--- a/libtiff/tif_jpeg.c
+++ b/libtiff/tif_jpeg.c
@@ -466,7 +466,8 @@ std_empty_output_buffer(j_compress_ptr cinfo)
        }
 #endif
 
-	TIFFFlushData1(tif);
+	if( !TIFFFlushData1(tif) )
+            return FALSE;
 	sp->dest.next_output_byte = (JOCTET*) tif->tif_rawdata;
 	sp->dest.free_in_buffer = (size_t) tif->tif_rawdatasize;
 
diff --git a/libtiff/tif_lzma.c b/libtiff/tif_lzma.c
index 3f6096b6..4e347c94 100644
--- a/libtiff/tif_lzma.c
+++ b/libtiff/tif_lzma.c
@@ -300,7 +300,8 @@ LZMAEncode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s)
 		}
 		if (sp->stream.avail_out == 0) {
 			tif->tif_rawcc = tif->tif_rawdatasize;
-			TIFFFlushData1(tif);
+			if (!TIFFFlushData1(tif))
+				return 0;
 			sp->stream.next_out = tif->tif_rawdata;
 			sp->stream.avail_out = (size_t)tif->tif_rawdatasize;  /* this is a safe typecast, as check is made already in LZMAPreEncode */
 		}
@@ -328,7 +329,8 @@ LZMAPostEncode(TIFF* tif)
 			if ((tmsize_t)sp->stream.avail_out != tif->tif_rawdatasize) {
 				tif->tif_rawcc =
 					tif->tif_rawdatasize - sp->stream.avail_out;
-				TIFFFlushData1(tif);
+				if (!TIFFFlushData1(tif))
+					return 0;
 				sp->stream.next_out = tif->tif_rawdata;
 				sp->stream.avail_out = (size_t)tif->tif_rawdatasize;  /* this is a safe typecast, as check is made already in ZIPPreEncode */
 			}
diff --git a/libtiff/tif_pixarlog.c b/libtiff/tif_pixarlog.c
index 62640905..148ee619 100644
--- a/libtiff/tif_pixarlog.c
+++ b/libtiff/tif_pixarlog.c
@@ -1200,7 +1200,8 @@ PixarLogEncode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s)
 		}
 		if (sp->stream.avail_out == 0) {
 			tif->tif_rawcc = tif->tif_rawdatasize;
-			TIFFFlushData1(tif);
+			if (!TIFFFlushData1(tif))
+				return 0;
 			sp->stream.next_out = tif->tif_rawdata;
 			sp->stream.avail_out = (uInt) tif->tif_rawdatasize;  /* this is a safe typecast, as check is made already in PixarLogPreEncode */
 		}
@@ -1230,7 +1231,8 @@ PixarLogPostEncode(TIFF* tif)
 		    if ((tmsize_t)sp->stream.avail_out != tif->tif_rawdatasize) {
 			    tif->tif_rawcc =
 				tif->tif_rawdatasize - sp->stream.avail_out;
-			    TIFFFlushData1(tif);
+			    if (!TIFFFlushData1(tif))
+                                return 0;
 			    sp->stream.next_out = tif->tif_rawdata;
 			    sp->stream.avail_out = (uInt) tif->tif_rawdatasize;  /* this is a safe typecast, as check is made already in PixarLogPreEncode */
 		    }
diff --git a/libtiff/tif_zip.c b/libtiff/tif_zip.c
index 325222e5..d8fe919b 100644
--- a/libtiff/tif_zip.c
+++ b/libtiff/tif_zip.c
@@ -265,7 +265,8 @@ ZIPEncode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s)
 		}
 		if (sp->stream.avail_out == 0) {
 			tif->tif_rawcc = tif->tif_rawdatasize;
-			TIFFFlushData1(tif);
+			if (!TIFFFlushData1(tif))
+				return 0;
 			sp->stream.next_out = tif->tif_rawdata;
 			sp->stream.avail_out = (uint64)tif->tif_rawdatasize <= 0xFFFFFFFFU ? (uInt)tif->tif_rawdatasize : 0xFFFFFFFFU;
 		}
@@ -294,7 +295,8 @@ ZIPPostEncode(TIFF* tif)
 			if ((tmsize_t)sp->stream.avail_out != tif->tif_rawdatasize)
 			{
 				tif->tif_rawcc =  tif->tif_rawdatasize - sp->stream.avail_out;
-				TIFFFlushData1(tif);
+				if (!TIFFFlushData1(tif))
+					return 0;
 				sp->stream.next_out = tif->tif_rawdata;
 				sp->stream.avail_out = (uint64)tif->tif_rawdatasize <= 0xFFFFFFFFU ? (uInt)tif->tif_rawdatasize : 0xFFFFFFFFU;
 			}
diff --git a/libtiff/tif_zstd.c b/libtiff/tif_zstd.c
index 21c935e2..66135e03 100644
--- a/libtiff/tif_zstd.c
+++ b/libtiff/tif_zstd.c
@@ -260,7 +260,8 @@ ZSTDEncode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s)
                 }
                 if( sp->out_buffer.pos == sp->out_buffer.size ) {
                         tif->tif_rawcc = tif->tif_rawdatasize;
-                        TIFFFlushData1(tif);
+                        if (!TIFFFlushData1(tif))
+                                return 0;
                         sp->out_buffer.dst = tif->tif_rawcp;
                         sp->out_buffer.pos = 0;
                 }
@@ -289,7 +290,8 @@ ZSTDPostEncode(TIFF* tif)
                 }
                 if( sp->out_buffer.pos > 0 ) {
                         tif->tif_rawcc = sp->out_buffer.pos;
-                        TIFFFlushData1(tif);
+                        if (!TIFFFlushData1(tif))
+                                return 0;
                         sp->out_buffer.dst = tif->tif_rawcp;
                         sp->out_buffer.pos = 0;
                 }