Fixes: signed integer overflow: 538976288 * 538976288 cannot be represented in type 'int' Fixes: 27473/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-5758978289827840
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/mov.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index 2b90e31170..a66e3d6b3b 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -2345,12 +2345,10 @@ FF_ENABLE_DEPRECATION_WARNINGS if (tmcd_ctx->tmcd_flags & 0x0008) { int timescale = AV_RB32(st->codecpar->extradata + 8); int framedur = AV_RB32(st->codecpar->extradata + 12); - st->avg_frame_rate.num *= timescale; - st->avg_frame_rate.den *= framedur; + st->avg_frame_rate = av_mul_q(st->avg_frame_rate, (AVRational){timescale, framedur}); #if FF_API_LAVF_AVCTX FF_DISABLE_DEPRECATION_WARNINGS - st->codec->time_base.den *= timescale; - st->codec->time_base.num *= framedur; + st->codec->time_base = av_mul_q(st->codec->time_base , (AVRational){framedur, timescale}); FF_ENABLE_DEPRECATION_WARNINGS #endif } -- 2.17.1 _______________________________________________ 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".
