diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-09-26 22:54:36 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-02-02 16:18:20 +0300 |
| commit | ee69f64bdc9861cf37cd69609ea7c319b844bf87 (patch) | |
| tree | 7f716e3c81139bd61a2e5e7a67b08cd8ecc84657 /libavcodec | |
| parent | 57e18185bf23d3b05374681bb1f3168e320ad66f (diff) | |
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>
Diffstat (limited to 'libavcodec')
| -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 68d5befa40..0c0f41b9b9 100644 --- a/libavcodec/exr.c +++ b/libavcodec/exr.c @@ -1734,7 +1734,9 @@ 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; } |