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Linshizhi
ffmpeg.wasm-core
Commits
927d866a
Commit
927d866a
authored
Oct 12, 2012
by
Michael Niedermayer
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tscc2: fix out of array access
Fixes CID732260 Signed-off-by:
Michael Niedermayer
<
michaelni@gmx.at
>
parent
5a75924d
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tscc2.c
libavcodec/tscc2.c
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libavcodec/tscc2.c
View file @
927d866a
...
@@ -173,7 +173,7 @@ static int tscc2_decode_mb(TSCC2Context *c, int *q, int vlc_set,
...
@@ -173,7 +173,7 @@ static int tscc2_decode_mb(TSCC2Context *c, int *q, int vlc_set,
if
(
ac
==
0x1000
)
if
(
ac
==
0x1000
)
ac
=
get_bits
(
gb
,
12
);
ac
=
get_bits
(
gb
,
12
);
bpos
+=
ac
&
0xF
;
bpos
+=
ac
&
0xF
;
if
(
bpos
>=
64
)
if
(
bpos
>=
16
)
return
AVERROR_INVALIDDATA
;
return
AVERROR_INVALIDDATA
;
val
=
sign_extend
(
ac
>>
4
,
8
);
val
=
sign_extend
(
ac
>>
4
,
8
);
c
->
block
[
tscc2_zigzag
[
bpos
++
]]
=
val
;
c
->
block
[
tscc2_zigzag
[
bpos
++
]]
=
val
;
...
...
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