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various security fixes and precautionary checks

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Originally committed as revision 3822 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
2005-01-12 00:16:25 +00:00
parent f14d4e7e21
commit 0ecca7a49f
36 changed files with 314 additions and 89 deletions
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2
libavformat/flic.c
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@@ -171,7 +171,7 @@ static int flic_read_packet(AVFormatContext *s,
size = LE_32(&preamble[0]);
magic = LE_16(&preamble[4]);
if ((magic == FLIC_CHUNK_MAGIC_1) || (magic == FLIC_CHUNK_MAGIC_2)) {
if (((magic == FLIC_CHUNK_MAGIC_1) || (magic == FLIC_CHUNK_MAGIC_2)) && size > FLIC_PREAMBLE_SIZE) {
if (av_new_packet(pkt, size)) {
ret = AVERROR_IO;
break;