diff options
Diffstat (limited to 'gnu/packages/patches/libtiff-divide-by-zero-ojpeg.patch')
| -rw-r--r-- | gnu/packages/patches/libtiff-divide-by-zero-ojpeg.patch | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/gnu/packages/patches/libtiff-divide-by-zero-ojpeg.patch b/gnu/packages/patches/libtiff-divide-by-zero-ojpeg.patch new file mode 100644 index 0000000000..2a96b68521 --- /dev/null +++ b/gnu/packages/patches/libtiff-divide-by-zero-ojpeg.patch @@ -0,0 +1,63 @@ +Fix divide-by-zero in OJPEGDecodeRaw(): + +http://bugzilla.maptools.org/show_bug.cgi?id=2611 + +2016-12-03 Even Rouault <even.rouault at spatialys.com> + + * libtiff/tif_ojpeg.c: make OJPEGDecode() early exit in case of failure +in + OJPEGPreDecode(). This will avoid a divide by zero, and potential other +issues. + Reported by Agostino Sarubbo. + Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2611 + +/cvs/maptools/cvsroot/libtiff/ChangeLog,v <-- ChangeLog +new revision: 1.1177; previous revision: 1.1176 +/cvs/maptools/cvsroot/libtiff/libtiff/tif_ojpeg.c,v <-- libtiff/tif_ojpeg.c +new revision: 1.66; previous revision: 1.65 + +Index: libtiff/libtiff/tif_ojpeg.c +=================================================================== +RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_ojpeg.c,v +retrieving revision 1.65 +retrieving revision 1.66 +diff -u -r1.65 -r1.66 +--- libtiff/libtiff/tif_ojpeg.c 4 Sep 2016 21:32:56 -0000 1.65 ++++ libtiff/libtiff/tif_ojpeg.c 3 Dec 2016 11:15:18 -0000 1.66 +@@ -1,4 +1,4 @@ +-/* $Id: tif_ojpeg.c,v 1.65 2016-09-04 21:32:56 erouault Exp $ */ ++/* $Id: tif_ojpeg.c,v 1.66 2016-12-03 11:15:18 erouault Exp $ */ + + /* WARNING: The type of JPEG encapsulation defined by the TIFF Version 6.0 + specification is now totally obsolete and deprecated for new applications and +@@ -244,6 +244,7 @@ + + typedef struct { + TIFF* tif; ++ int decoder_ok; + #ifndef LIBJPEG_ENCAP_EXTERNAL + JMP_BUF exit_jmpbuf; + #endif +@@ -722,6 +723,7 @@ + } + sp->write_curstrile++; + } ++ sp->decoder_ok = 1; + return(1); + } + +@@ -784,8 +786,14 @@ + 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) |