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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-07-03 02:31:47 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-09-25 13:51:43 +0200 |
| commit | 8f9b6ac0e88fc7fc3eb75a19e745542c451f6e71 (patch) | |
| tree | 362ef294b1136210337ff759d5f089174e3bb284 | |
| parent | 572568cff40a3ab717919ee31ebab3eab897af83 (diff) | |
| download | ffmpeg-8f9b6ac0e88fc7fc3eb75a19e745542c451f6e71.tar.gz | |
avcodec/wnv1: Check for width =1
The decoder only outputs pixels for width >1 images, fail early
Fixes: Timeout
Fixes: 48298/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WNV1_fuzzer-6198626319204352
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 d98d5a436aa70d3cef8f914c0467ef2fb2dd1dfc)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/wnv1.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/wnv1.c b/libavcodec/wnv1.c index dcf417763c..fd9721f4ca 100644 --- a/libavcodec/wnv1.c +++ b/libavcodec/wnv1.c @@ -126,6 +126,9 @@ static av_cold int decode_init(AVCodecContext *avctx) { static AVOnce init_static_once = AV_ONCE_INIT; + if (avctx->width <= 1) + return AVERROR_INVALIDDATA; + avctx->pix_fmt = AV_PIX_FMT_YUV422P; ff_thread_once(&init_static_once, wnv1_init_static); |