[FFmpeg-cvslog] avcodec/cfhdenc: Height of 16 is not supported

[Michael Niedermayer]

ffmpeg | branch: release/4.4 | Michael Niedermayer <michael at niedermayer.cc> | Fri Jul 19 23:19:52 2024 +0200| [4a4fe5cb492a810d0e703db5893339e10f7c0a98] | committer: Michael Niedermayer

avcodec/cfhdenc: Height of 16 is not supported

Fixes: out of array access
Fixes: 68941/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CFHD_fuzzer-5990952685600768

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 5dde255abdeb50aefb0dcf8b060277e37d180ec6)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4a4fe5cb492a810d0e703db5893339e10f7c0a98
---

 libavcodec/cfhdenc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavcodec/cfhdenc.c b/libavcodec/cfhdenc.c
index 5ef744c4c8..f73bb7154f 100644
--- a/libavcodec/cfhdenc.c
+++ b/libavcodec/cfhdenc.c
@@ -258,6 +258,11 @@ static av_cold int cfhd_encode_init(AVCodecContext *avctx)
     if (ret < 0)
         return ret;
 
+    if (avctx->height < 32) {
+        av_log(avctx, AV_LOG_ERROR, "Height must be >= 32.\n");
+        return AVERROR_INVALIDDATA;
+    }
+
     if (avctx->width & 15) {
         av_log(avctx, AV_LOG_ERROR, "Width must be multiple of 16.\n");
         return AVERROR_INVALIDDATA;