[FFmpeg-cvslog] avformat/avidec: Fix integer overflow in cum_len check

2018-07-10 Thread Michael Niedermayer 
ffmpeg | branch: release/2.8 | Michael Niedermayer  | 
Thu Mar  8 22:40:50 2018 +0100| [3b5645a72928e3eab7594205bab2d8aed8c114e8] | 
committer: Michael Niedermayer

avformat/avidec: Fix integer overflow in cum_len check

Fixes: signed integer overflow: 3775922176 * 4278190080 cannot be represented 
in type 'long'
Fixes: Chromium bug 791237

Reported-by: Matt Wolenetz 
Reviewed-by: Matt Wolenetz 
Signed-off-by: Michael Niedermayer 
(cherry picked from commit 06e092e7819b9437da32925200e7c369f93d82e7)
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3b5645a72928e3eab7594205bab2d8aed8c114e8
---

 libavformat/avidec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index 223ddd0530..81a43632bb 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -665,7 +665,7 @@ static int avi_read_header(AVFormatContext *s)
 st->start_time = 0;
 avio_rl32(pb); /* buffer size */
 avio_rl32(pb); /* quality */
-if (ast->cum_len*ast->scale/ast->rate > 3600) {
+if (ast->cum_len > 3600LL * ast->rate / ast->scale) {
 av_log(s, AV_LOG_ERROR, "crazy start time, iam scared, giving 
up\n");
 ast->cum_len = 0;
 }

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[FFmpeg-cvslog] avformat/avidec: Fix integer overflow in cum_len check

2018-04-12 Thread Michael Niedermayer 
ffmpeg | branch: release/3.3 | Michael Niedermayer  | 
Thu Mar  8 22:40:50 2018 +0100| [8cf7205a72f5a330781470a28485584f7d08054d] | 
committer: Michael Niedermayer

avformat/avidec: Fix integer overflow in cum_len check

Fixes: signed integer overflow: 3775922176 * 4278190080 cannot be represented 
in type 'long'
Fixes: Chromium bug 791237

Reported-by: Matt Wolenetz 
Reviewed-by: Matt Wolenetz 
Signed-off-by: Michael Niedermayer 
(cherry picked from commit 06e092e7819b9437da32925200e7c369f93d82e7)
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8cf7205a72f5a330781470a28485584f7d08054d
---

 libavformat/avidec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index ed043470f0..64a129af82 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -670,7 +670,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
 st->start_time = 0;
 avio_rl32(pb); /* buffer size */
 avio_rl32(pb); /* quality */
-if (ast->cum_len*ast->scale/ast->rate > 3600) {
+if (ast->cum_len > 3600LL * ast->rate / ast->scale) {
 av_log(s, AV_LOG_ERROR, "crazy start time, iam scared, giving 
up\n");
 ast->cum_len = 0;
 }

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[FFmpeg-cvslog] avformat/avidec: Fix integer overflow in cum_len check

2018-03-09 Thread Michael Niedermayer 
ffmpeg | branch: master | Michael Niedermayer  | Thu 
Mar  8 22:40:50 2018 +0100| [06e092e7819b9437da32925200e7c369f93d82e7] | 
committer: Michael Niedermayer

avformat/avidec: Fix integer overflow in cum_len check

Fixes: signed integer overflow: 3775922176 * 4278190080 cannot be represented 
in type 'long'
Fixes: Chromium bug 791237

Reported-by: Matt Wolenetz 
Reviewed-by: Matt Wolenetz 
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=06e092e7819b9437da32925200e7c369f93d82e7
---

 libavformat/avidec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index 3ff515d492..bafe1dc8da 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -670,7 +670,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
 st->start_time = 0;
 avio_rl32(pb); /* buffer size */
 avio_rl32(pb); /* quality */
-if (ast->cum_len*ast->scale/ast->rate > 3600) {
+if (ast->cum_len > 3600LL * ast->rate / ast->scale) {
 av_log(s, AV_LOG_ERROR, "crazy start time, iam scared, giving 
up\n");
 ast->cum_len = 0;
 }

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