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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-04-29 21:21:27 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-05-04 17:55:24 +0200 |
| commit | f0ce023ddb8863d16ab650fcc0731851a55db084 (patch) | |
| tree | 3b2713d7a3441c0f89e1cf36e5da59e706bea5dd | |
| parent | c75dfa043585db7f5e20f5cab2ca8be1771ca7b6 (diff) | |
| download | ffmpeg-f0ce023ddb8863d16ab650fcc0731851a55db084.tar.gz | |
avcodec/utils: treat PAL8 for jpegs similar to other colorspaces
Fixes: out of array access
Fixes: 33713/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MJPEG_fuzzer-5778775641030656
Fixes: 33717/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEGLS_fuzzer-4960397238075392
Fixes: 33718/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SMVJPEG_fuzzer-5314270096130048.fuzz
Fixes: 33719/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MJPEG_fuzzer-5352721864589312
Fixes: 33721/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_THP_fuzzer-5938892055379968
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/utils.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c index 9cee989098..bc5f652dec 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -272,6 +272,16 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, w_align = 8; h_align = 8; } + if (s->codec_id == AV_CODEC_ID_MJPEG || + s->codec_id == AV_CODEC_ID_MJPEGB || + s->codec_id == AV_CODEC_ID_LJPEG || + s->codec_id == AV_CODEC_ID_SMVJPEG || + s->codec_id == AV_CODEC_ID_AMV || + s->codec_id == AV_CODEC_ID_SP5X || + s->codec_id == AV_CODEC_ID_JPEGLS) { + w_align = 8; + h_align = 2*8; + } break; case AV_PIX_FMT_BGR24: if ((s->codec_id == AV_CODEC_ID_MSZH) || |