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avformat/jacosubdec: Use 64bit intermediate for start/end timestamp shift
authorMichael Niedermayer <michael@niedermayer.cc>
Thu, 11 Feb 2021 21:44:36 +0000 (22:44 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Sun, 28 Mar 2021 12:20:00 +0000 (14:20 +0200)
commit2c477be08a64a78ab0a358ae00e2f2dc746f2b47
treeac77bc8cea7ab11b031d6ff2cb230f849c90c2d3tree | snapshot
parentb5d8fe1c874947ca67ee8117b18f8052f0e590fccommit | diff
avformat/jacosubdec: Use 64bit intermediate for start/end timestamp shift

Fixes: signed integer overflow: -1957694447 + -1620425806 cannot be represented in type 'int'
Fixes: 30207/clusterfuzz-testcase-minimized-ffmpeg_dem_JACOSUB_fuzzer-5050791771635712
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavformat/jacosubdec.c diff | blob | history
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