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avutil/timecode: Avoid undefined behavior with large framenum
authorMichael Niedermayer <michael@niedermayer.cc>
Sat, 28 Nov 2020 20:31:16 +0000 (21:31 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Mon, 18 Jan 2021 23:05:50 +0000 (00:05 +0100)
commit1b1905739638c22b476c99c679b41f29fa00bf07
tree7efdecbc5fc7afd7f6122265d7c0dbbb40fa627ftree | snapshot
parent8c9a5a0fe9f27be35332a2b8f604dc85d219a056commit | diff
avutil/timecode: Avoid undefined behavior with large framenum

Fixes: signed integer overflow: 2147462079 + 2149596 cannot be represented in type 'int'
Fixes: 27565/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5091972813160448
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavutil/timecode.c diff | blob | history
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