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| author | David Conrad <lessen42@gmail.com> | 2010-06-27 05:46:23 +0400 |
|---|---|---|
| committer | David Conrad <lessen42@gmail.com> | 2010-06-27 05:46:23 +0400 |
| commit | a02bb835ace0d7bcfd187a0538d7064104bec6a9 (patch) | |
| tree | 7b46b2cd73135591af0e2f3458fd7812f80afa35 /libavcodec/vorbis_dec.c | |
| parent | 54fdf5d15092825eea20fa7cbac9f164f683c057 (diff) | |
vorbisdec: Take channels into account when checking against residue overflow
Fixes issue1969
Originally committed as revision 23812 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/vorbis_dec.c')
| -rw-r--r-- | libavcodec/vorbis_dec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/vorbis_dec.c b/libavcodec/vorbis_dec.c index 608277a44d..b0f461cdae 100644 --- a/libavcodec/vorbis_dec.c +++ b/libavcodec/vorbis_dec.c @@ -645,7 +645,7 @@ static int vorbis_parse_setup_hdr_residues(vorbis_context *vc) res_setup->partition_size = get_bits(gb, 24) + 1; /* Validations to prevent a buffer overflow later. */ if (res_setup->begin>res_setup->end || - res_setup->end>vc->blocksize[1] / (res_setup->type == 2 ? 1 : 2) || + res_setup->end > vc->avccontext->channels * vc->blocksize[1] / (res_setup->type == 2 ? 1 : 2) || (res_setup->end-res_setup->begin) / res_setup->partition_size > V_MAX_PARTITIONS) { av_log(vc->avccontext, AV_LOG_ERROR, "partition out of bounds: type, begin, end, size, blocksize: %"PRIdFAST16", %"PRIdFAST32", %"PRIdFAST32", %"PRIdFAST32", %"PRIdFAST32"\n", res_setup->type, res_setup->begin, res_setup->end, res_setup->partition_size, vc->blocksize[1] / 2); return -1; |