[FFmpeg-cvslog] avcodec/diracdec: Use int64 in global mv to prevent overflow

[Michael Niedermayer]

ffmpeg | branch: release/2.8 | Michael Niedermayer  | 
Sat Feb 17 23:54:44 2018 +0100| [299b981382725c1befb56c8f324ce067783220d6] | 
committer: Michael Niedermayer

avcodec/diracdec: Use int64 in global mv to prevent overflow

Fixes: runtime error: signed integer overflow: 361 * -6295541 cannot be 
represented in type 'int'
Fixes: 5911/clusterfuzz-testcase-minimized-6450382197751808

Found-by: continuous fuzzing process 
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer 
(cherry picked from commit cbcbefdc3b4cbc917d2f8b2dd216fb12121a838b)
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=299b981382725c1befb56c8f324ce067783220d6
---

 libavcodec/diracdec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/diracdec.c b/libavcodec/diracdec.c
index 7c7a31e830..fb54312c49 100644
--- a/libavcodec/diracdec.c
+++ b/libavcodec/diracdec.c
@@ -1186,8 +1186,8 @@ static void global_mv(DiracContext *s, DiracBlock *block, 
int x, int y, int ref)
 int *c  = s->globalmc[ref].perspective;
 
 int m   = (1> (ez+ep);
 block->u.mv[ref][1] = (my + (1<<(ez+ep))) >> (ez+ep);

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[FFmpeg-cvslog] avcodec/diracdec: Use int64 in global mv to prevent overflow

[Michael Niedermayer]

ffmpeg | branch: release/3.3 | Michael Niedermayer  | 
Sat Feb 17 23:54:44 2018 +0100| [205689ae8a5e00ce2d39e9559252c020cb784e56] | 
committer: Michael Niedermayer

avcodec/diracdec: Use int64 in global mv to prevent overflow

Fixes: runtime error: signed integer overflow: 361 * -6295541 cannot be 
represented in type 'int'
Fixes: 5911/clusterfuzz-testcase-minimized-6450382197751808

Found-by: continuous fuzzing process 
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer 
(cherry picked from commit cbcbefdc3b4cbc917d2f8b2dd216fb12121a838b)
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=205689ae8a5e00ce2d39e9559252c020cb784e56
---

 libavcodec/diracdec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/diracdec.c b/libavcodec/diracdec.c
index 9df70c3f7a..3b5eb16d87 100644
--- a/libavcodec/diracdec.c
+++ b/libavcodec/diracdec.c
@@ -1399,8 +1399,8 @@ static void global_mv(DiracContext *s, DiracBlock *block, 
int x, int y, int ref)
 int *c  = s->globalmc[ref].perspective;
 
 int m   = (1<u.mv[ref][0] = (mx + (1<<(ez+ep))) >> (ez+ep);
 block->u.mv[ref][1] = (my + (1<<(ez+ep))) >> (ez+ep);

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[FFmpeg-cvslog] avcodec/diracdec: Use int64 in global mv to prevent overflow

[Michael Niedermayer]

ffmpeg | branch: release/3.0 | Michael Niedermayer  | 
Sat Feb 17 23:54:44 2018 +0100| [b4135fb335f0ab1f06996233f45610c3dcb85bb7] | 
committer: Michael Niedermayer

avcodec/diracdec: Use int64 in global mv to prevent overflow

Fixes: runtime error: signed integer overflow: 361 * -6295541 cannot be 
represented in type 'int'
Fixes: 5911/clusterfuzz-testcase-minimized-6450382197751808

Found-by: continuous fuzzing process 
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer 
(cherry picked from commit cbcbefdc3b4cbc917d2f8b2dd216fb12121a838b)
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b4135fb335f0ab1f06996233f45610c3dcb85bb7
---

 libavcodec/diracdec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/diracdec.c b/libavcodec/diracdec.c
index 2cdebe8700..033fbe4261 100644
--- a/libavcodec/diracdec.c
+++ b/libavcodec/diracdec.c
@@ -1315,8 +1315,8 @@ static void global_mv(DiracContext *s, DiracBlock *block, 
int x, int y, int ref)
 int *c  = s->globalmc[ref].perspective;
 
 int m   = (1<u.mv[ref][0] = (mx + (1<<(ez+ep))) >> (ez+ep);
 block->u.mv[ref][1] = (my + (1<<(ez+ep))) >> (ez+ep);

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[FFmpeg-cvslog] avcodec/diracdec: Use int64 in global mv to prevent overflow

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer  | Sat 
Feb 17 23:54:44 2018 +0100| [cbcbefdc3b4cbc917d2f8b2dd216fb12121a838b] | 
committer: Michael Niedermayer

avcodec/diracdec: Use int64 in global mv to prevent overflow

Fixes: runtime error: signed integer overflow: 361 * -6295541 cannot be 
represented in type 'int'
Fixes: 5911/clusterfuzz-testcase-minimized-6450382197751808

Found-by: continuous fuzzing process 
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=cbcbefdc3b4cbc917d2f8b2dd216fb12121a838b
---

 libavcodec/diracdec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/diracdec.c b/libavcodec/diracdec.c
index 530e1c6ffd..e3afbf14be 100644
--- a/libavcodec/diracdec.c
+++ b/libavcodec/diracdec.c
@@ -1399,8 +1399,8 @@ static void global_mv(DiracContext *s, DiracBlock *block, 
int x, int y, int ref)
 int *c  = s->globalmc[ref].perspective;
 
 int m   = (1<u.mv[ref][0] = (mx + (1<<(ez+ep))) >> (ez+ep);
 block->u.mv[ref][1] = (my + (1<<(ez+ep))) >> (ez+ep);

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