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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-09-26 21:54:36 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-10 16:04:26 +0200 |
| commit | 20256685acf3fc737827d8a7dfc6ef78377857ca (patch) | |
| tree | 41030e562bf393ec16bcd1a1f46d7f157395beff | |
| parent | 7ec4c95d9428fadf912be149090118fdd5b2db13 (diff) | |
| download | ffmpeg-20256685acf3fc737827d8a7dfc6ef78377857ca.tar.gz | |
avcodec/exr: Check xdelta, ydelta
Fixes: assertion failure
Fixes: 25617/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EXR_fuzzer-5648746061496320
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6949df35d0c69ae91bb0f49069e0703deb9bd676)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/exr.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/exr.c b/libavcodec/exr.c index ba6e3fdcb6..4b417013f9 100644 --- a/libavcodec/exr.c +++ b/libavcodec/exr.c @@ -1739,7 +1739,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, s->ymin > s->ymax || s->xdelta != s->xmax - s->xmin + 1 || s->xmax >= s->w || - s->ymax >= s->h) { + s->ymax >= s->h || + s->ydelta == 0xFFFFFFFF || s->xdelta == 0xFFFFFFFF + ) { av_log(avctx, AV_LOG_ERROR, "Wrong or missing size information.\n"); return AVERROR_INVALIDDATA; } |