[FFmpeg-cvslog] avformat/avidec: Check height

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sun Feb 27 21:44:29 2022 +0100| [ec8ff659f57786c4cb089b07dfeab7e5cbab8d52] | committer: Michael Niedermayer

avformat/avidec: Check height

Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: Ticket8486

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ec8ff659f57786c4cb089b07dfeab7e5cbab8d52
---

 libavformat/avidec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index 0f0e6846da..455dce0733 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -862,6 +862,8 @@ static int avi_read_header(AVFormatContext *s)
                             memcpy(st->codecpar->extradata + st->codecpar->extradata_size - 9,
                                    "BottomUp", 9);
                     }
+                    if (st->codecpar->height == INT_MIN)
+                        return AVERROR_INVALIDDATA;
                     st->codecpar->height = FFABS(st->codecpar->height);
 
 //                    avio_skip(pb, size - 5 * 4);