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avcodec/rawdec: Check side data size before use 

Fixes out of array read

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-10-30 15:12:12 +01:00
parent 0f64b6cd22
commit 5f0bc0215a
1 changed files with 8 additions and 1 deletions
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9
libavcodec/rawdec.c
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@ -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) {