decoder: Signal IVD_RES_CHANGED error for change in crop paramsHEADreplicant-6.0-0004-transitionreplicant-6.0-0004-rc6replicant-6.0-0004-rc5-transitionreplicant-6.0-0004-rc5replicant-6.0-0004-rc4replicant-6.0-0004-rc3replicant-6.0-0004-rc2replicant-6.0-0004cm-13.0

IVD_RES_CHANGED was not signaled when crop parameters changed, i.e.
display dimensions changed without change in decode dimensions.

In such cases, if output buffer was allocated as per the current
dimension being decoded, without IVD_RES_CHANGED signalled, there can be
an OOB write if the new buffer is smaller than the frame being returned
as output

Bug: 118399205
Test: vendor
Change-Id: Ia750a99cda08a3254a6f8ea8b55d07e655b34d05
(cherry picked from commit 442a01bf37d5bd97bb6d13b382f00265051abbe8)

1 files changed, 13 insertions, 0 deletions

diff --git a/decoder/ih264d_parse_headers.c b/decoder/ih264d_parse_headers.c
index b669331..ee38315 100644
--- a/decoder/ih264d_parse_headers.c
+++ b/decoder/ih264d_parse_headers.c
@@ -918,12 +918,25 @@ WORD32 ih264d_parse_sps(dec_struct_t *ps_dec, dec_bit_stream_t *ps_bitstrm)
             ps_dec->u1_res_changed = 1;
             return IVD_RES_CHANGED;
         }
+
+        if((ps_dec->i4_header_decoded & 1) && (ps_dec->u2_disp_width != i4_cropped_wd))
+        {
+            ps_dec->u1_res_changed = 1;
+            return IVD_RES_CHANGED;
+        }
+
         if((ps_dec->i4_header_decoded & 1) && (ps_dec->u2_pic_ht != u2_pic_ht))
         {
             ps_dec->u1_res_changed = 1;
             return IVD_RES_CHANGED;
         }
 
+        if((ps_dec->i4_header_decoded & 1) && (ps_dec->u2_disp_height != i4_cropped_ht))
+        {
+            ps_dec->u1_res_changed = 1;
+            return IVD_RES_CHANGED;
+        }
+
         /* Check for unsupported resolutions */
         if((u2_pic_wd > H264_MAX_FRAME_WIDTH) || (u2_pic_ht > H264_MAX_FRAME_HEIGHT))
         {