ffmpeg | branch: release/4.3 | Michael Niedermayer <mich...@niedermayer.cc> | Sat Sep 17 22:55:24 2022 +0200| [71e8a575da653948336d1be9ce929b23b88538ed] | committer: Michael Niedermayer
avformat/jacosubdec: Fix overflow in get_shift() Fixes: 50993/clusterfuzz-testcase-minimized-ffmpeg_dem_JACOSUB_fuzzer-6722544461283328 Fixes: signed integer overflow: 48214448 * 60 cannot be represented in type 'int' Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit b1a68127bbcd3d638363fa0249982c494e87c9e2) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=71e8a575da653948336d1be9ce929b23b88538ed --- libavformat/jacosubdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/jacosubdec.c b/libavformat/jacosubdec.c index a5364bdae7..02c93e8515 100644 --- a/libavformat/jacosubdec.c +++ b/libavformat/jacosubdec.c @@ -152,7 +152,7 @@ static int get_shift(int timeres, const char *buf) ret = 0; switch (n) { case 4: - ret = sign * (((int64_t)a*3600 + b*60 + c) * timeres + d); + ret = sign * (((int64_t)a*3600 + (int64_t)b*60 + c) * timeres + d); break; case 3: ret = sign * (( (int64_t)a*60 + b) * timeres + c); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
