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-rw-r--r--third_party/libtiff/0020-upstream-security-fixes.patch270
1 files changed, 0 insertions, 270 deletions
diff --git a/third_party/libtiff/0020-upstream-security-fixes.patch b/third_party/libtiff/0020-upstream-security-fixes.patch
deleted file mode 100644
index 139b79ddeb..0000000000
--- a/third_party/libtiff/0020-upstream-security-fixes.patch
+++ /dev/null
@@ -1,270 +0,0 @@
-diff --git a/third_party/libtiff/tif_dir.c b/third_party/libtiff/tif_dir.c
-index 4b3632ab1..81b849374 100644
---- a/third_party/libtiff/tif_dir.c
-+++ b/third_party/libtiff/tif_dir.c
-@@ -862,6 +862,32 @@ _TIFFVGetField(TIFF* tif, uint32 tag, va_list ap)
- if( fip == NULL ) /* cannot happen since TIFFGetField() already checks it */
- return 0;
-
-+ if( tag == TIFFTAG_NUMBEROFINKS )
-+ {
-+ int i;
-+ for (i = 0; i < td->td_customValueCount; i++) {
-+ uint16 val;
-+ TIFFTagValue *tv = td->td_customValues + i;
-+ if (tv->info->field_tag != tag)
-+ continue;
-+ val = *(uint16 *)tv->value;
-+ /* Truncate to SamplesPerPixel, since the */
-+ /* setting code for INKNAMES assume that there are SamplesPerPixel */
-+ /* inknames. */
-+ /* Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2599 */
-+ if( val > td->td_samplesperpixel )
-+ {
-+ TIFFWarningExt(tif->tif_clientdata,"_TIFFVGetField",
-+ "Truncating NumberOfInks from %u to %u",
-+ val, td->td_samplesperpixel);
-+ val = td->td_samplesperpixel;
-+ }
-+ *va_arg(ap, uint16*) = val;
-+ return 1;
-+ }
-+ return 0;
-+ }
-+
- /*
- * We want to force the custom code to be used for custom
- * fields even if the tag happens to match a well known
-diff --git a/third_party/libtiff/tif_dirread.c b/third_party/libtiff/tif_dirread.c
-index d50b39a80..7dbcf6d86 100644
---- a/third_party/libtiff/tif_dirread.c
-+++ b/third_party/libtiff/tif_dirread.c
-@@ -5503,8 +5503,7 @@ ChopUpSingleUncompressedStrip(TIFF* tif)
- uint64 rowblockbytes;
- uint64 stripbytes;
- uint32 strip;
-- uint64 nstrips64;
-- uint32 nstrips32;
-+ uint32 nstrips;
- uint32 rowsperstrip;
- uint64* newcounts;
- uint64* newoffsets;
-@@ -5535,18 +5534,17 @@ ChopUpSingleUncompressedStrip(TIFF* tif)
- return;
-
- /*
-- * never increase the number of strips in an image
-+ * never increase the number of rows per strip
- */
- if (rowsperstrip >= td->td_rowsperstrip)
- return;
-- nstrips64 = TIFFhowmany_64(bytecount, stripbytes);
-- if ((nstrips64==0)||(nstrips64>0xFFFFFFFF)) /* something is wonky, do nothing. */
-- return;
-- nstrips32 = (uint32)nstrips64;
-+ nstrips = TIFFhowmany_32(td->td_imagelength, rowsperstrip);
-+ if( nstrips == 0 )
-+ return;
-
-- newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64),
-+ newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64),
- "for chopped \"StripByteCounts\" array");
-- newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64),
-+ newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64),
- "for chopped \"StripOffsets\" array");
- if (newcounts == NULL || newoffsets == NULL) {
- /*
-@@ -5563,18 +5561,18 @@ ChopUpSingleUncompressedStrip(TIFF* tif)
- * Fill the strip information arrays with new bytecounts and offsets
- * that reflect the broken-up format.
- */
-- for (strip = 0; strip < nstrips32; strip++) {
-+ for (strip = 0; strip < nstrips; strip++) {
- if (stripbytes > bytecount)
- stripbytes = bytecount;
- newcounts[strip] = stripbytes;
-- newoffsets[strip] = offset;
-+ newoffsets[strip] = stripbytes ? offset : 0;
- offset += stripbytes;
- bytecount -= stripbytes;
- }
- /*
- * Replace old single strip info with multi-strip info.
- */
-- td->td_stripsperimage = td->td_nstrips = nstrips32;
-+ td->td_stripsperimage = td->td_nstrips = nstrips;
- TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
-
- _TIFFfree(td->td_stripbytecount);
-diff --git a/third_party/libtiff/tif_luv.c b/third_party/libtiff/tif_luv.c
-index ca08f30a7..220c15034 100644
---- a/third_party/libtiff/tif_luv.c
-+++ b/third_party/libtiff/tif_luv.c
-@@ -158,6 +158,7 @@
- typedef struct logLuvState LogLuvState;
-
- struct logLuvState {
-+ int encoder_state; /* 1 if encoder correctly initialized */
- int user_datafmt; /* user data format */
- int encode_meth; /* encoding method */
- int pixel_size; /* bytes per pixel */
-@@ -1552,6 +1553,7 @@ LogLuvSetupEncode(TIFF* tif)
- td->td_photometric, "must be either LogLUV or LogL");
- break;
- }
-+ sp->encoder_state = 1;
- return (1);
- notsupported:
- TIFFErrorExt(tif->tif_clientdata, module,
-@@ -1563,19 +1565,27 @@ notsupported:
- static void
- LogLuvClose(TIFF* tif)
- {
-+ LogLuvState* sp = (LogLuvState*) tif->tif_data;
- TIFFDirectory *td = &tif->tif_dir;
-
-+ assert(sp != 0);
- /*
- * For consistency, we always want to write out the same
- * bitspersample and sampleformat for our TIFF file,
- * regardless of the data format being used by the application.
- * Since this routine is called after tags have been set but
- * before they have been recorded in the file, we reset them here.
-+ * Note: this is really a nasty approach. See PixarLogClose
- */
-- td->td_samplesperpixel =
-- (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3;
-- td->td_bitspersample = 16;
-- td->td_sampleformat = SAMPLEFORMAT_INT;
-+ if( sp->encoder_state )
-+ {
-+ /* See PixarLogClose. Might avoid issues with tags whose size depends
-+ * on those below, but not completely sure this is enough. */
-+ td->td_samplesperpixel =
-+ (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3;
-+ td->td_bitspersample = 16;
-+ td->td_sampleformat = SAMPLEFORMAT_INT;
-+ }
- }
-
- static void
-diff --git a/third_party/libtiff/tif_ojpeg.c b/third_party/libtiff/tif_ojpeg.c
-index e128887bf..cb84be96b 100644
---- a/third_party/libtiff/tif_ojpeg.c
-+++ b/third_party/libtiff/tif_ojpeg.c
-@@ -253,6 +253,7 @@ typedef enum {
-
- typedef struct {
- TIFF* tif;
-+ int decoder_ok;
- #ifndef LIBJPEG_ENCAP_EXTERNAL
- JMP_BUF exit_jmpbuf;
- #endif
-@@ -731,6 +732,7 @@ OJPEGPreDecode(TIFF* tif, uint16 s)
- }
- sp->write_curstrile++;
- }
-+ sp->decoder_ok = 1;
- return(1);
- }
-
-@@ -793,8 +795,14 @@ OJPEGPreDecodeSkipScanlines(TIFF* tif)
- static int
- OJPEGDecode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s)
- {
-+ static const char module[]="OJPEGDecode";
- OJPEGState* sp=(OJPEGState*)tif->tif_data;
- (void)s;
-+ if( !sp->decoder_ok )
-+ {
-+ TIFFErrorExt(tif->tif_clientdata,module,"Cannot decode: decoder not correctly initialized");
-+ return 0;
-+ }
- if (sp->libjpeg_jpeg_query_style==0)
- {
- if (OJPEGDecodeRaw(tif,buf,cc)==0)
-diff --git a/third_party/libtiff/tif_pixarlog.c b/third_party/libtiff/tif_pixarlog.c
-index 8f6ca8f63..e6574ec3d 100644
---- a/third_party/libtiff/tif_pixarlog.c
-+++ b/third_party/libtiff/tif_pixarlog.c
-@@ -1233,8 +1233,10 @@ PixarLogPostEncode(TIFF* tif)
- static void
- PixarLogClose(TIFF* tif)
- {
-+ PixarLogState* sp = (PixarLogState*) tif->tif_data;
- TIFFDirectory *td = &tif->tif_dir;
-
-+ assert(sp != 0);
- /* In a really sneaky (and really incorrect, and untruthful, and
- * troublesome, and error-prone) maneuver that completely goes against
- * the spirit of TIFF, and breaks TIFF, on close, we covertly
-@@ -1243,8 +1245,19 @@ PixarLogClose(TIFF* tif)
- * readers that don't know about PixarLog, or how to set
- * the PIXARLOGDATFMT pseudo-tag.
- */
-- td->td_bitspersample = 8;
-- td->td_sampleformat = SAMPLEFORMAT_UINT;
-+
-+ if (sp->state&PLSTATE_INIT) {
-+ /* We test the state to avoid an issue such as in
-+ * http://bugzilla.maptools.org/show_bug.cgi?id=2604
-+ * What appends in that case is that the bitspersample is 1 and
-+ * a TransferFunction is set. The size of the TransferFunction
-+ * depends on 1<<bitspersample. So if we increase it, an access
-+ * out of the buffer will happen at directory flushing.
-+ * Another option would be to clear those targs.
-+ */
-+ td->td_bitspersample = 8;
-+ td->td_sampleformat = SAMPLEFORMAT_UINT;
-+ }
- }
-
- static void
-diff --git a/third_party/libtiff/tif_read.c b/third_party/libtiff/tif_read.c
-index 795153bbf..1ba100e54 100644
---- a/third_party/libtiff/tif_read.c
-+++ b/third_party/libtiff/tif_read.c
-@@ -346,7 +346,7 @@ TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size)
- rowsperstrip=td->td_rowsperstrip;
- if (rowsperstrip>td->td_imagelength)
- rowsperstrip=td->td_imagelength;
-- stripsperplane=((td->td_imagelength+rowsperstrip-1)/rowsperstrip);
-+ stripsperplane= TIFFhowmany_32_maxuint_compat(td->td_imagelength, rowsperstrip);
- stripinplane=(strip%stripsperplane);
- plane=(uint16)(strip/stripsperplane);
- rows=td->td_imagelength-stripinplane*rowsperstrip;
-diff --git a/third_party/libtiff/tif_strip.c b/third_party/libtiff/tif_strip.c
-index b6098dd31..3b55285cd 100644
---- a/third_party/libtiff/tif_strip.c
-+++ b/third_party/libtiff/tif_strip.c
-@@ -63,15 +63,6 @@ TIFFNumberOfStrips(TIFF* tif)
- TIFFDirectory *td = &tif->tif_dir;
- uint32 nstrips;
-
-- /* If the value was already computed and store in td_nstrips, then return it,
-- since ChopUpSingleUncompressedStrip might have altered and resized the
-- since the td_stripbytecount and td_stripoffset arrays to the new value
-- after the initial affectation of td_nstrips = TIFFNumberOfStrips() in
-- tif_dirread.c ~line 3612.
-- See http://bugzilla.maptools.org/show_bug.cgi?id=2587 */
-- if( td->td_nstrips )
-- return td->td_nstrips;
--
- nstrips = (td->td_rowsperstrip == (uint32) -1 ? 1 :
- TIFFhowmany_32(td->td_imagelength, td->td_rowsperstrip));
- if (td->td_planarconfig == PLANARCONFIG_SEPARATE)
-diff --git a/third_party/libtiff/tiffiop.h b/third_party/libtiff/tiffiop.h
-index b6db1e932..1925a6b5e 100644
---- a/third_party/libtiff/tiffiop.h
-+++ b/third_party/libtiff/tiffiop.h
-@@ -249,6 +249,10 @@ struct tiff {
- #define TIFFhowmany_32(x, y) (((uint32)x < (0xffffffff - (uint32)(y-1))) ? \
- ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y))) : \
- 0U)
-+/* Variant of TIFFhowmany_32() that doesn't return 0 if x close to MAXUINT. */
-+/* Caution: TIFFhowmany_32_maxuint_compat(x,y)*y might overflow */
-+#define TIFFhowmany_32_maxuint_compat(x, y) \
-+ (((uint32)(x) / (uint32)(y)) + ((((uint32)(x) % (uint32)(y)) != 0) ? 1 : 0))
- #define TIFFhowmany8_32(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3)
- #define TIFFroundup_32(x, y) (TIFFhowmany_32(x,y)*(y))
- #define TIFFhowmany_64(x, y) ((((uint64)(x))+(((uint64)(y))-1))/((uint64)(y)))
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 01:48:33 +0000