[FFmpeg-cvslog] avcodec/hevc_ps: Fix UB 1 << 31

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Sat Jun  1 15:13:21 2024 +0200| [2c38ca3d37242c47a31dfa3edaf25592cefffa44] | committer: Andreas Rheinhardt

avcodec/hevc_ps: Fix UB 1 << 31

Reviewed-by: Tomas Härdin <git at haerdin.se>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2c38ca3d37242c47a31dfa3edaf25592cefffa44
---

 libavcodec/hevc_ps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c
index 7b486ce0af..1caaeb0b61 100644
--- a/libavcodec/hevc_ps.c
+++ b/libavcodec/hevc_ps.c
@@ -200,7 +200,7 @@ int ff_hevc_decode_short_term_rps(GetBitContext *gb, AVCodecContext *avctx,
         }
 
         for (unsigned i = 0; i < FF_ARRAY_ELEMS(used); i++)
-            rps->used |= used[i] * (1 << i);
+            rps->used |= (uint32_t)used[i] << i;
     } else {
         unsigned int nb_positive_pics;