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authorOliver Chang <ochang@chromium.org>2015-12-14 15:16:09 -0800
committerOliver Chang <ochang@chromium.org>2015-12-14 15:16:09 -0800
commitf86d3f946e2f1977c7eaea01dcb9d7ecb3064cd1 (patch)
treeb1e27edc20c1b425459f9f431d6517f9975b5d8c /third_party/libopenjpeg20/0005-jp2_apply_pclr.patch
parent6e698d13cde3391eaf745e90649a6bec1c72b0b7 (diff)
downloadpdfium-f86d3f946e2f1977c7eaea01dcb9d7ecb3064cd1.tar.xz
Merge to XFA: openjpeg: Fix crash in opj_jp2_apply_pclr
TBR=tsepez@chromium.org BUG=554172 Original Review URL: https://codereview.chromium.org/1492693003 . (cherry picked from commit 3026f26aa69e983837d05a5477fe22e79aed0d26) Review URL: https://codereview.chromium.org/1520323003 .
Diffstat (limited to 'third_party/libopenjpeg20/0005-jp2_apply_pclr.patch')
-rw-r--r--third_party/libopenjpeg20/0005-jp2_apply_pclr.patch49
1 files changed, 49 insertions, 0 deletions
diff --git a/third_party/libopenjpeg20/0005-jp2_apply_pclr.patch b/third_party/libopenjpeg20/0005-jp2_apply_pclr.patch
new file mode 100644
index 0000000000..fd3ca634ca
--- /dev/null
+++ b/third_party/libopenjpeg20/0005-jp2_apply_pclr.patch
@@ -0,0 +1,49 @@
+diff --git a/third_party/libopenjpeg20/jp2.c b/third_party/libopenjpeg20/jp2.c
+index 47f83a1..6e910a9 100644
+--- a/third_party/libopenjpeg20/jp2.c
++++ b/third_party/libopenjpeg20/jp2.c
+@@ -902,7 +902,7 @@ static OPJ_BOOL opj_jp2_check_color(opj_image_t *image, opj_jp2_color_t *color,
+ opj_event_msg(p_manager, EVT_ERROR, "Invalid component/palette index for direct mapping %d.\n", pcol);
+ is_sane = OPJ_FALSE;
+ }
+- else if (pcol_usage[pcol] && cmap[i].mtyp == 1) {
++ else if (pcol_usage[pcol] && cmap[i].mtyp != 0) {
+ opj_event_msg(p_manager, EVT_ERROR, "Component %d is mapped twice.\n", pcol);
+ is_sane = OPJ_FALSE;
+ }
+@@ -982,8 +982,8 @@ static void opj_jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color)
+ assert( pcol == 0 );
+ new_comps[i] = old_comps[cmp];
+ } else {
+- assert( i == pcol );
+- new_comps[pcol] = old_comps[cmp];
++ assert( i == pcol ); // probably wrong?
++ new_comps[i] = old_comps[cmp];
+ }
+
+ /* Palette mapping: */
+@@ -1007,11 +1007,11 @@ static void opj_jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color)
+ cmp = cmap[i].cmp; pcol = cmap[i].pcol;
+ src = old_comps[cmp].data;
+ assert( src );
+- max = new_comps[pcol].w * new_comps[pcol].h;
++ max = new_comps[i].w * new_comps[i].h;
+
+ /* Direct use: */
+ if(cmap[i].mtyp == 0) {
+- assert( cmp == 0 );
++ assert( cmp == 0 ); // probably wrong.
+ dst = new_comps[i].data;
+ assert( dst );
+ for(j = 0; j < max; ++j) {
+@@ -1019,8 +1019,8 @@ static void opj_jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color)
+ }
+ }
+ else {
+- assert( i == pcol );
+- dst = new_comps[pcol].data;
++ assert( i == pcol ); // probably wrong?
++ dst = new_comps[i].data;
+ assert( dst );
+ for(j = 0; j < max; ++j) {
+ /* The index */