Fixes: 15248/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LOCO_fuzzer-5087440458481664 Fixes: signed integer overflow: 3 + 2147483647 cannot be represented in type 'int'
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/loco.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/loco.c b/libavcodec/loco.c index 741db3bdce..e8c62b8178 100644 --- a/libavcodec/loco.c +++ b/libavcodec/loco.c @@ -295,6 +295,11 @@ static av_cold int decode_init(AVCodecContext *avctx) avpriv_request_sample(avctx, "LOCO codec version %i", version); } + if (l->lossy > 65536U) { + av_log(avctx, AV_LOG_ERROR, "lossy %i is too large\n", l->lossy); + return AVERROR_INVALIDDATA; + } + l->mode = AV_RL32(avctx->extradata + 4); switch (l->mode) { case LOCO_CYUY2: -- 2.21.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
