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| author | Luca Barbato <lu_zero@gentoo.org> | 2013-06-27 03:19:05 +0200 |
|---|---|---|
| committer | Luca Barbato <lu_zero@gentoo.org> | 2013-07-07 22:04:05 +0200 |
| commit | c4abc9098cacb227dba39bac6aea16b2bceba0d0 (patch) | |
| tree | 1f281d323eb7c96df2e22c31e46200b8dad07633 /libavcodec/vqavideo.c | |
| parent | 636ced8e1dc8248a1353b416240b93d70ad03edb (diff) | |
vqavideo: check the version
Prevent out of buffer write.
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Diffstat (limited to 'libavcodec/vqavideo.c')
| -rw-r--r-- | libavcodec/vqavideo.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/libavcodec/vqavideo.c b/libavcodec/vqavideo.c index ed4d8147cb..98f82ad571 100644 --- a/libavcodec/vqavideo.c +++ b/libavcodec/vqavideo.c @@ -134,6 +134,17 @@ static av_cold int vqa_decode_init(AVCodecContext *avctx) /* load up the VQA parameters from the header */ s->vqa_version = s->avctx->extradata[0]; + switch (s->vqa_version) { + case 1: + case 2: + break; + case 3: + avpriv_report_missing_feature(avctx, "VQA Version %d", s->vqa_version); + return AVERROR_PATCHWELCOME; + default: + avpriv_request_sample(avctx, "VQA Version %i", s->vqa_version); + return AVERROR_PATCHWELCOME; + } s->width = AV_RL16(&s->avctx->extradata[6]); s->height = AV_RL16(&s->avctx->extradata[8]); if ((ret = av_image_check_size(s->width, s->height, 0, avctx)) < 0) { |