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Linshizhi
ffmpeg.wasm-core
Commits
279e3aaa
Commit
279e3aaa
authored
Apr 17, 2017
by
Luca Barbato
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flv: Validate the packet size
Size can be negative at that point. Bug-Id: 1041 CC: libav-stable@libav.org
parent
48097815
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flvdec.c
libavformat/flvdec.c
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libavformat/flvdec.c
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279e3aaa
...
...
@@ -912,6 +912,12 @@ skip:
st
->
codecpar
->
codec_id
==
AV_CODEC_ID_H264
)
{
int
type
=
avio_r8
(
s
->
pb
);
size
--
;
if
(
size
<
0
)
{
ret
=
AVERROR_INVALIDDATA
;
goto
leave
;
}
if
(
st
->
codecpar
->
codec_id
==
AV_CODEC_ID_H264
)
{
// sign extension
int32_t
cts
=
(
avio_rb24
(
s
->
pb
)
+
0xff800000
)
^
0xff800000
;
...
...
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