mozjs102/CVE-2023-44488.patch

From dfff1be88eaa0e0756c74b702484465b48b66fca Mon Sep 17 00:00:00 2001
From: Jerome Jiang <jianj@google.com>
Date: Thu, 30 Jun 2022 13:48:56 -0400
Subject: [PATCH] CVE-2023-44488 Fix bug with smaller width bigger size

Origin: https://github.com/webmproject/libvpx/commit/df9fd9d5b7325060b2b921558a1eb20ca7880937

---
 media/libvpx/libvpx/test/resize_test.cc       |  9 +++----
 .../libvpx/vp9/common/vp9_alloccommon.c       | 14 +++++-----
 media/libvpx/libvpx/vp9/encoder/vp9_encoder.c | 27 +++++++++++++++++--
 3 files changed, 35 insertions(+), 15 deletions(-)

diff --git a/media/libvpx/libvpx/test/resize_test.cc b/media/libvpx/libvpx/test/resize_test.cc
index 5f323db5ab..55a2fe58c6 100644
--- a/media/libvpx/libvpx/test/resize_test.cc
+++ b/media/libvpx/libvpx/test/resize_test.cc
@@ -101,11 +101,8 @@ void ScaleForFrameNumber(unsigned int frame, unsigned int initial_w,
       *h = initial_h;
       return;
     }
-    if (frame < 100) {
-      *w = initial_w * 7 / 10;
-      *h = initial_h * 16 / 10;
-      return;
-    }
+    *w = initial_w * 7 / 10;
+    *h = initial_h * 16 / 10;    
     return;
   }
   if (frame < 10) {
@@ -578,7 +575,7 @@ TEST_P(ResizeRealtimeTest, TestExternalResizeWorks) {
   }
 }
 
-TEST_P(ResizeRealtimeTest, DISABLED_TestExternalResizeSmallerWidthBiggerSize) {
+TEST_P(ResizeRealtimeTest, TestExternalResizeSmallerWidthBiggerSize) {
   ResizingVideoSource video;
   video.flag_codec_ = true;
   video.smaller_width_larger_size_ = true;
diff --git a/media/libvpx/libvpx/vp9/common/vp9_alloccommon.c b/media/libvpx/libvpx/vp9/common/vp9_alloccommon.c
index 5702dca718..7841c5e793 100644
--- a/media/libvpx/libvpx/vp9/common/vp9_alloccommon.c
+++ b/media/libvpx/libvpx/vp9/common/vp9_alloccommon.c
@@ -131,13 +131,7 @@ int vp9_alloc_context_buffers(VP9_COMMON *cm, int width, int height) {
     cm->free_mi(cm);
     if (cm->alloc_mi(cm, new_mi_size)) goto fail;
   }
-
-  if (cm->seg_map_alloc_size < cm->mi_rows * cm->mi_cols) {
-    // Create the segmentation map structure and set to 0.
-    free_seg_map(cm);
-    if (alloc_seg_map(cm, cm->mi_rows * cm->mi_cols)) goto fail;
-  }
-
+  
   if (cm->above_context_alloc_cols < cm->mi_cols) {
     vpx_free(cm->above_context);
     cm->above_context = (ENTROPY_CONTEXT *)vpx_calloc(
@@ -151,6 +145,12 @@ int vp9_alloc_context_buffers(VP9_COMMON *cm, int width, int height) {
     if (!cm->above_seg_context) goto fail;
     cm->above_context_alloc_cols = cm->mi_cols;
   }
+ 
+  if (cm->seg_map_alloc_size < cm->mi_rows * cm->mi_cols) {
+    // Create the segmentation map structure and set to 0.
+    free_seg_map(cm);
+    if (alloc_seg_map(cm, cm->mi_rows * cm->mi_cols)) goto fail;
+  }
 
   if (vp9_alloc_loop_filter(cm)) goto fail;
 
diff --git a/media/libvpx/libvpx/vp9/encoder/vp9_encoder.c b/media/libvpx/libvpx/vp9/encoder/vp9_encoder.c
index 4a37816e20..6efcf91066 100644
--- a/media/libvpx/libvpx/vp9/encoder/vp9_encoder.c
+++ b/media/libvpx/libvpx/vp9/encoder/vp9_encoder.c
@@ -1937,6 +1937,17 @@ static void alloc_copy_partition_data(VP9_COMP *cpi) {
   }
 }
 
+static void free_copy_partition_data(VP9_COMP *cpi) {
+  vpx_free(cpi->prev_partition);
+  cpi->prev_partition = NULL;
+  vpx_free(cpi->prev_segment_id);
+  cpi->prev_segment_id = NULL;
+  vpx_free(cpi->prev_variance_low);
+  cpi->prev_variance_low = NULL;
+  vpx_free(cpi->copied_frame_cnt);
+  cpi->copied_frame_cnt = NULL;
+}
+
 void vp9_change_config(struct VP9_COMP *cpi, const VP9EncoderConfig *oxcf) {
   VP9_COMMON *const cm = &cpi->common;
   RATE_CONTROL *const rc = &cpi->rc;
@@ -2021,6 +2032,8 @@ void vp9_change_config(struct VP9_COMP *cpi, const VP9EncoderConfig *oxcf) {
     new_mi_size = cm->mi_stride * calc_mi_size(cm->mi_rows);
     if (cm->mi_alloc_size < new_mi_size) {
       vp9_free_context_buffers(cm);
+      vp9_free_pc_tree(&cpi->td);
+      vpx_free(cpi->mbmi_ext_base);
       alloc_compressor_data(cpi);
       realloc_segmentation_maps(cpi);
       cpi->initial_width = cpi->initial_height = 0;
@@ -2036,8 +2049,18 @@ void vp9_change_config(struct VP9_COMP *cpi, const VP9EncoderConfig *oxcf) {
     update_frame_size(cpi);
 
   if (last_w != cpi->oxcf.width || last_h != cpi->oxcf.height) {
-    memset(cpi->consec_zero_mv, 0,
-           cm->mi_rows * cm->mi_cols * sizeof(*cpi->consec_zero_mv));
+    vpx_free(cpi->consec_zero_mv);
+    CHECK_MEM_ERROR(
+        cm, cpi->consec_zero_mv,
+        vpx_calloc(cm->mi_rows * cm->mi_cols, sizeof(*cpi->consec_zero_mv)));
+
+    vpx_free(cpi->skin_map);
+    CHECK_MEM_ERROR(
+        cm, cpi->skin_map,
+        vpx_calloc(cm->mi_rows * cm->mi_cols, sizeof(cpi->skin_map[0])));
+
+    free_copy_partition_data(cpi);
+    alloc_copy_partition_data(cpi);    
     if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ)
       vp9_cyclic_refresh_reset_resize(cpi);
     rc->rc_1_frame = 0;
-- 
2.27.0