avcodec/mjpegdec: Only allow 0x11110000 pix_fmt_id for bayer mode
authorMichael Niedermayer <michael@niedermayer.cc>
Thu, 12 Sep 2019 19:02:17 +0000 (21:02 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Fri, 13 Sep 2019 19:53:27 +0000 (21:53 +0200)
commit2006e5ccb6db3d4fd97096d8a1d0ba18f708f5fe
tree9360c92ad6e9e33f8b437597ba88a068bd5d04bc
parentde125a09424aa46284506e15b58c9089bce0bedf
avcodec/mjpegdec: Only allow 0x11110000 pix_fmt_id for bayer mode

Fixes: NULL pointer dereference
Fixes: assertion failure
Fixes: 17003/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MJPEG_fuzzer-5696929253556224
Fixes: 17039/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MJPEG_fuzzer-5651008134316032

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/mjpegdec.c