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wnv1: Make sure the input packet is large enough

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Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit 91be1103fd)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Martin Storsjö
2013-09-20 00:07:34 +03:00
committed by Luca Barbato
parent 97b6916f93
commit 0c8c6b4419
1 changed files with 5 additions and 0 deletions
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5
libavcodec/wnv1.c
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@@ -71,6 +71,11 @@ static int decode_frame(AVCodecContext *avctx,
int prev_y = 0, prev_u = 0, prev_v = 0; int prev_y = 0, prev_u = 0, prev_v = 0;
uint8_t *rbuf; uint8_t *rbuf;
if (buf_size < 8) {
av_log(avctx, AV_LOG_ERROR, "Packet is too short\n");
return AVERROR_INVALIDDATA;
}
rbuf = av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE); rbuf = av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!rbuf) { if (!rbuf) {
av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer\n"); av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer\n");