Merge commit 'd05f72c75445969cd7bdb1d860635c9880c67fb6'

* commit 'd05f72c75445969cd7bdb1d860635c9880c67fb6':
  dfa: improve boundary checks in decode_dds1()
  wmalosslessdec: Fix reading too many bits in decode_channel_residues()
  wmalosslessdec: fix a get_bits(0) in decode_ac_filter
  wmalosslessdec: make MCLMS arrays big enough for what is written into them.
  indeo4/5: check empty tile size in decode_mb_info().
  ivi_common: make ff_ivi_process_empty_tile() static.
  indeo5: check tile size in decode_mb_info().
  indeo3: fix out of cell write.

Conflicts:
	libavcodec/dfa.c
	libavcodec/indeo3.c
	libavcodec/indeo5.c
	libavcodec/ivi_common.c
	libavcodec/wmalosslessdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 5 insertions, 2 deletions

diff --git a/libavcodec/indeo3.c b/libavcodec/indeo3.c
index dd9ab684fe..d19c6044ab 100644
--- a/libavcodec/indeo3.c
+++ b/libavcodec/indeo3.c
@@ -427,8 +427,11 @@ static int decode_cell_data(Cell *cell, uint8_t *block, uint8_t *ref_block,
     blk_row_offset = (row_offset << (2 + v_zoom)) - (cell->width << 2);
     line_offset    = v_zoom ? row_offset : 0;
 
-    for (y = 0; y + v_zoom < cell->height; is_first_row = 0, y += 1 + v_zoom) {
-        for (x = 0; x + h_zoom < cell->width; x += 1 + h_zoom) {
+    if (cell->height & v_zoom || cell->width & h_zoom)
+        return IV3_BAD_DATA;
+
+    for (y = 0; y < cell->height; is_first_row = 0, y += 1 + v_zoom) {
+        for (x = 0; x < cell->width; x += 1 + h_zoom) {
             ref = ref_block;
             dst = block;