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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-07-03 02:31:47 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-10-09 21:32:56 +0200 |
| commit | 3ca6eeff7711183a14b02fe36af2d4cb3733be27 (patch) | |
| tree | f28de2b582b7993220fbb9da5f3f807d0f20836b | |
| parent | 7513f8c03671b12170b5ace1cf147bf36c9c96fd (diff) | |
| download | ffmpeg-3ca6eeff7711183a14b02fe36af2d4cb3733be27.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 915e9c7dc9..291be78cc8 100644 --- a/libavcodec/wnv1.c +++ b/libavcodec/wnv1.c @@ -136,6 +136,9 @@ static av_cold int decode_init(AVCodecContext *avctx) { static VLC_TYPE code_table[1 << CODE_VLC_BITS][2]; + if (avctx->width <= 1) + return AVERROR_INVALIDDATA; + avctx->pix_fmt = AV_PIX_FMT_YUV422P; code_vlc.table = code_table; |