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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-09-26 21:54:36 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-11 16:42:49 +0200 |
| commit | 6949df35d0c69ae91bb0f49069e0703deb9bd676 (patch) | |
| tree | 2b7f6b4f10000b361fb893448be1c322b3fb0d6d | |
| parent | 991246657b436d54d8f72c57fcc4888b835bb7c9 (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>
| -rw-r--r-- | libavcodec/exr.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/exr.c b/libavcodec/exr.c index 216d216785..c80e8eb5e0 100644 --- a/libavcodec/exr.c +++ b/libavcodec/exr.c @@ -1751,7 +1751,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, /* Verify the xmin, xmax, ymin and ymax before setting the actual image size. * It's possible for the data window can larger or outside the display window */ - if (s->xmin > s->xmax || s->ymin > s->ymax) { + if (s->xmin > s->xmax || s->ymin > s->ymax || + s->ydelta == 0xFFFFFFFF || s->xdelta == 0xFFFFFFFF) { av_log(avctx, AV_LOG_ERROR, "Wrong or missing size information.\n"); return AVERROR_INVALIDDATA; } |