avformat/aviobuf: Fix signed integer overflow in avio_seek()
authorVitaly Buka <vitalybuka-at-google.com@ffmpeg.org>
Sun, 20 Aug 2017 18:56:47 +0000 (11:56 -0700)
committerMichael Niedermayer <michael@niedermayer.cc>
Sun, 17 Sep 2017 13:57:27 +0000 (15:57 +0200)
commit6622be010b09368f57bfd09715386a373d79066c
treec55c3f104222755a3bbc248c73312d4b57178cfd
parent7b6dba892f63a620d4510c9114f414cfa6435942
avformat/aviobuf: Fix signed integer overflow in avio_seek()

Signed integer overflow is undefined behavior.
Detected with clang and -fsanitize=signed-integer-overflow

Signed-off-by: Vitaly Buka <vitalybuka@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit eca2a49716ae1f42804dd3545da2f740edf03250)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavformat/aviobuf.c