mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
vpriv_adx_decode_header: avoid underreading the array.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
parent
ab8517b891
commit
30bce34b67
@ -47,6 +47,11 @@ int avpriv_adx_decode_header(AVCodecContext *avctx, const uint8_t *buf,
|
||||
return AVERROR_INVALIDDATA;
|
||||
offset = AV_RB16(buf + 2) + 4;
|
||||
|
||||
if (offset < 6) {
|
||||
av_log(avctx, AV_LOG_ERROR, "offset is prior data\n");
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
|
||||
/* if copyright string is within the provided data, validate it */
|
||||
if (bufsize >= offset && memcmp(buf + offset - 6, "(c)CRI", 6))
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
Loading…
Reference in New Issue
Block a user