virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-01-24 13:56:33 +02:00
Code Issues Releases Activity

avcodec/rscc: Check inflated_buf size whan it is used

Browse Source 
Fixes: out of array access
Fixes: 27434/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RSCC_fuzzer-5196757675540480

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
(cherry picked from commit a5ed6da9bdbe32408aabe1c75e4b55fcaeec1e9b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2020-11-22 00:31:47 +01:00
parent 90a723f134
commit c6f65b8711
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libavcodec/rscc.c
View File

@ -283,6 +283,10 @@ static int rscc_decode_frame(AVCodecContext *avctx, void *data,
ret = AVERROR_INVALIDDATA;
goto end;
}
if (ctx->inflated_size < pixel_size) {
ret = AVERROR_INVALIDDATA;
goto end;
}
ret = uncompress(ctx->inflated_buf, &len, gbc->buffer, packed_size);
if (ret) {
av_log(avctx, AV_LOG_ERROR, "Pixel deflate error %d.\n", ret);