From: Michael Niedermayer <[email protected]> Fixes out of array write in quant_cof
Fixes CVE-2012-2775 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <[email protected]> Signed-off-by: Justin Ruggles <[email protected]> --- libavcodec/alsdec.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/libavcodec/alsdec.c b/libavcodec/alsdec.c index ef12253..dce248d 100644 --- a/libavcodec/alsdec.c +++ b/libavcodec/alsdec.c @@ -668,6 +668,10 @@ static int read_var_block_data(ALSDecContext *ctx, ALSBlockData *bd) int opt_order_length = av_ceil_log2(av_clip((bd->block_length >> 3) - 1, 2, sconf->max_order + 1)); *bd->opt_order = get_bits(gb, opt_order_length); + if (*bd->opt_order > sconf->max_order) { + av_log(avctx, AV_LOG_ERROR, "Predictor order too large!\n"); + return AVERROR_INVALIDDATA; + } } else { *bd->opt_order = sconf->max_order; } -- 1.7.1 _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
