mirror of https://git.ffmpeg.org/ffmpeg.git
vqavideo: check for out of bound reads.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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parent
e3123856c7
commit
6d45702f7f
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@ -230,6 +230,8 @@ static void decode_format80(const unsigned char *src, int src_size,
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src_index += 2;
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av_dlog(NULL, "(1) copy %X bytes from absolute pos %X\n", count, src_pos);
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CHECK_COUNT();
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if (src_pos + count > dest_size)
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return;
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for (i = 0; i < count; i++)
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dest[dest_index + i] = dest[src_pos + i];
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dest_index += count;
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@ -252,6 +254,8 @@ static void decode_format80(const unsigned char *src, int src_size,
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src_index += 2;
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av_dlog(NULL, "(3) copy %X bytes from absolute pos %X\n", count, src_pos);
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CHECK_COUNT();
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if (src_pos + count > dest_size)
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return;
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for (i = 0; i < count; i++)
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dest[dest_index + i] = dest[src_pos + i];
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dest_index += count;
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@ -272,6 +276,8 @@ static void decode_format80(const unsigned char *src, int src_size,
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src_index += 2;
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av_dlog(NULL, "(5) copy %X bytes from relpos %X\n", count, src_pos);
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CHECK_COUNT();
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if (dest_index < src_pos)
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return;
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for (i = 0; i < count; i++)
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dest[dest_index + i] = dest[dest_index - src_pos + i];
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dest_index += count;
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