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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-01-29 22:00:58 +02:00
FFmpeg/libavformat
Michael Niedermayer 57c602ab24 avformat/rmdec: Initialize and sanity check offset in ivr_read_header()
Fixes: signed integer overflow: -9223372036854775808 - 17 cannot be represented in type 'long'
Fixes: 18768/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5674385247830016

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7e665e4a81e2e96eb45138a1dfa38617de2631a4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-02 19:55:08 +02:00
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