cmdutils: replace strncpy() with direct assignment

[ffmpeg] / libavformat / mvi.c

diff --git a/libavformat/mvi.c b/libavformat/mvi.c
index 2d4b11aa32cd59ecf2c8d65c58b19b136ab45b88..cfdbe5d273b8a1a5351e58356b2c71e55c8ad0af 100644 (file)
--- a/libavformat/mvi.c
+++ b/libavformat/mvi.c
@@ -120,6 +120,10 @@ static int read_packet(AVFormatContext *s, AVPacket *pkt)
         mvi->video_frame_size = (mvi->get_int)(pb);
         if (mvi->audio_size_left == 0)
             return AVERROR(EIO);
+        if (mvi->audio_size_counter + 512 > UINT64_MAX - mvi->audio_frame_size ||
+            mvi->audio_size_counter + 512 + mvi->audio_frame_size >= ((uint64_t)INT32_MAX) << MVI_FRAC_BITS)
+            return AVERROR_INVALIDDATA;
+
         count = (mvi->audio_size_counter + mvi->audio_frame_size + 512) >> MVI_FRAC_BITS;
         if (count > mvi->audio_size_left)
             count = mvi->audio_size_left;