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Linshizhi
ffmpeg.wasm-core
Commits
ce5274c1
Commit
ce5274c1
authored
Oct 19, 2019
by
Paul B Mahol
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avfilter/vf_fieldmatch: fix heap-buffer overflow
Also fix use of uninitialized values. Fixes #8239
parent
c8f3915f
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vf_fieldmatch.c
libavfilter/vf_fieldmatch.c
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libavfilter/vf_fieldmatch.c
View file @
ce5274c1
...
@@ -950,7 +950,7 @@ static int config_input(AVFilterLink *inlink)
...
@@ -950,7 +950,7 @@ static int config_input(AVFilterLink *inlink)
fm
->
tpitchy
=
FFALIGN
(
w
,
16
);
fm
->
tpitchy
=
FFALIGN
(
w
,
16
);
fm
->
tpitchuv
=
FFALIGN
(
w
>>
1
,
16
);
fm
->
tpitchuv
=
FFALIGN
(
w
>>
1
,
16
);
fm
->
tbuffer
=
av_
malloc
(
h
/
2
*
fm
->
tpitchy
);
fm
->
tbuffer
=
av_
calloc
((
h
/
2
+
4
)
*
fm
->
tpitchy
,
sizeof
(
*
fm
->
tbuffer
)
);
fm
->
c_array
=
av_malloc
((((
w
+
fm
->
blockx
/
2
)
/
fm
->
blockx
)
+
1
)
*
fm
->
c_array
=
av_malloc
((((
w
+
fm
->
blockx
/
2
)
/
fm
->
blockx
)
+
1
)
*
(((
h
+
fm
->
blocky
/
2
)
/
fm
->
blocky
)
+
1
)
*
(((
h
+
fm
->
blocky
/
2
)
/
fm
->
blocky
)
+
1
)
*
4
*
sizeof
(
*
fm
->
c_array
));
4
*
sizeof
(
*
fm
->
c_array
));
...
...
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