[FFmpeg-cvslog] avcodec/loco: Check loco_get_rice() for failure

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Fri Jul  5 02:21:52 2024 +0200| [d55327684349b4db5d5905eefaa7d2aec597908d] | committer: Michael Niedermayer

avcodec/loco: Check loco_get_rice() for failure

Fixes: CID1604495 Overflowed constant

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d55327684349b4db5d5905eefaa7d2aec597908d
---

 libavcodec/loco.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/loco.c b/libavcodec/loco.c
index 4aba1eb9c5..d73d8fa88b 100644
--- a/libavcodec/loco.c
+++ b/libavcodec/loco.c
@@ -157,6 +157,8 @@ static int loco_decode_plane(LOCOContext *l, uint8_t *data, int width, int heigh
 
     /* restore top left pixel */
     val     = loco_get_rice(&rc);
+    if (val == INT_MIN)
+        return AVERROR_INVALIDDATA;
     data[0] = 128 + val;
     /* restore top line */
     for (i = 1; i < width; i++) {