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| author | Michael Niedermayer <michael@niedermayer.cc> | 2016-10-30 15:12:12 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-12-05 18:29:12 +0100 |
| commit | a190ca54f438db4d050ab0fce319fb41c3a85b46 (patch) | |
| tree | 04dc2869802b828c2530a33084e3238432ee5bb9 | |
| parent | 6f1ef60d50cfb2d9f87a95d13d4190cbdc4d2718 (diff) | |
| download | ffmpeg-a190ca54f438db4d050ab0fce319fb41c3a85b46.tar.gz | |
avcodec/rawdec: Check side data size before use
Fixes out of array read
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5f0bc0215a0f7099a2bcba5dced2e045e70fee61)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/rawdec.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/libavcodec/rawdec.c b/libavcodec/rawdec.c index 5a98258191..2d348daca3 100644 --- a/libavcodec/rawdec.c +++ b/libavcodec/rawdec.c @@ -364,9 +364,16 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame, } if (avctx->pix_fmt == AV_PIX_FMT_PAL8) { + int pal_size; const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, - NULL); + &pal_size); int ret; + + if (pal_size != AVPALETTE_SIZE) { + av_log(avctx, AV_LOG_ERROR, "Palette size %d is wrong\n", pal_size); + pal = NULL; + } + if (!context->palette) context->palette = av_buffer_alloc(AVPALETTE_SIZE); if (!context->palette) { |