[FFmpeg-cvslog] avcodec/h264_cabac: Tighten allowed coeff_abs range

2018-04-12 Thread Michael Niedermayer 
ffmpeg | branch: release/3.3 | Michael Niedermayer  | 
Wed Feb 14 00:32:30 2018 +0100| [878fc42a906d13cd6a78b0820eed75f4fd8e26e5] | 
committer: Michael Niedermayer

avcodec/h264_cabac: Tighten allowed coeff_abs range

Fixes: integer overflows
Reported-by: "Xiaohan Wang (王消寒)" 

Based on limits in "8.5 Transform coefficient decoding process and picture
construction process prior to deblocking  filter process"

Signed-off-by: Michael Niedermayer 
(cherry picked from commit f26a63c4ee1bdbe21d7ab462cd66f8ba20b14244)
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=878fc42a906d13cd6a78b0820eed75f4fd8e26e5
---

 libavcodec/h264_cabac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/h264_cabac.c b/libavcodec/h264_cabac.c
index 04b77f284f..1e05c04680 100644
--- a/libavcodec/h264_cabac.c
+++ b/libavcodec/h264_cabac.c
@@ -1735,7 +1735,7 @@ decode_cabac_residual_internal(const H264Context *h, 
H264SliceContext *sl,
 \
 if( coeff_abs >= 15 ) { \
 int j = 0; \
-while (get_cabac_bypass(CC) && j < 30) { \
+while (get_cabac_bypass(CC) && j < 16+7) { \
 j++; \
 } \
 \

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[FFmpeg-cvslog] avcodec/h264_cabac: Tighten allowed coeff_abs range

2018-02-19 Thread Michael Niedermayer 
ffmpeg | branch: release/3.0 | Michael Niedermayer  | 
Wed Feb 14 00:32:30 2018 +0100| [340c315c671efe137651d75da351c0f292d234fb] | 
committer: Michael Niedermayer

avcodec/h264_cabac: Tighten allowed coeff_abs range

Fixes: integer overflows
Reported-by: "Xiaohan Wang (王消寒)" 

Based on limits in "8.5 Transform coefficient decoding process and picture
construction process prior to deblocking  filter process"

Signed-off-by: Michael Niedermayer 
(cherry picked from commit f26a63c4ee1bdbe21d7ab462cd66f8ba20b14244)
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=340c315c671efe137651d75da351c0f292d234fb
---

 libavcodec/h264_cabac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/h264_cabac.c b/libavcodec/h264_cabac.c
index 649fa82b72..a450b4ec39 100644
--- a/libavcodec/h264_cabac.c
+++ b/libavcodec/h264_cabac.c
@@ -1736,7 +1736,7 @@ decode_cabac_residual_internal(const H264Context *h, 
H264SliceContext *sl,
 \
 if( coeff_abs >= 15 ) { \
 int j = 0; \
-while (get_cabac_bypass(CC) && j < 30) { \
+while (get_cabac_bypass(CC) && j < 16+7) { \
 j++; \
 } \
 \

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[FFmpeg-cvslog] avcodec/h264_cabac: Tighten allowed coeff_abs range

2018-02-18 Thread Michael Niedermayer 
ffmpeg | branch: release/2.8 | Michael Niedermayer  | 
Wed Feb 14 00:32:30 2018 +0100| [6cfd81b04c7159450a01dadb748b7042559d1dca] | 
committer: Michael Niedermayer

avcodec/h264_cabac: Tighten allowed coeff_abs range

Fixes: integer overflows
Reported-by: "Xiaohan Wang (王消寒)" 

Based on limits in "8.5 Transform coefficient decoding process and picture
construction process prior to deblocking  filter process"

Signed-off-by: Michael Niedermayer 
(cherry picked from commit f26a63c4ee1bdbe21d7ab462cd66f8ba20b14244)
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6cfd81b04c7159450a01dadb748b7042559d1dca
---

 libavcodec/h264_cabac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/h264_cabac.c b/libavcodec/h264_cabac.c
index 397253ff34..3679bd3df8 100644
--- a/libavcodec/h264_cabac.c
+++ b/libavcodec/h264_cabac.c
@@ -1732,7 +1732,7 @@ decode_cabac_residual_internal(const H264Context *h, 
H264SliceContext *sl,
 \
 if( coeff_abs >= 15 ) { \
 int j = 0; \
-while (get_cabac_bypass(CC) && j < 30) { \
+while (get_cabac_bypass(CC) && j < 16+7) { \
 j++; \
 } \
 \

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[FFmpeg-cvslog] avcodec/h264_cabac: Tighten allowed coeff_abs range

2018-02-15 Thread Michael Niedermayer 
ffmpeg | branch: master | Michael Niedermayer  | Wed 
Feb 14 00:32:30 2018 +0100| [f26a63c4ee1bdbe21d7ab462cd66f8ba20b14244] | 
committer: Michael Niedermayer

avcodec/h264_cabac: Tighten allowed coeff_abs range

Fixes: integer overflows
Reported-by: "Xiaohan Wang (王消寒)" 

Based on limits in "8.5 Transform coefficient decoding process and picture
construction process prior to deblocking  filter process"

Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f26a63c4ee1bdbe21d7ab462cd66f8ba20b14244
---

 libavcodec/h264_cabac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/h264_cabac.c b/libavcodec/h264_cabac.c
index ec5fc74b9b..815149a501 100644
--- a/libavcodec/h264_cabac.c
+++ b/libavcodec/h264_cabac.c
@@ -1735,7 +1735,7 @@ decode_cabac_residual_internal(const H264Context *h, 
H264SliceContext *sl,
 \
 if( coeff_abs >= 15 ) { \
 int j = 0; \
-while (get_cabac_bypass(CC) && j < 30) { \
+while (get_cabac_bypass(CC) && j < 16+7) { \
 j++; \
 } \
 \

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