[FFmpeg-cvslog] avcodec/iff: Check length before memcpy() in decode_deep_rle32()

ffmpeg | branch: release/2.8 | Michael Niedermayer | Tue Apr 21 00:03:40 2020 +0200| [56774297bb5a49421d3e4d60d62371cc5a68b26a] | committer: Michael Niedermayer avcodec/iff: Check length before memcpy() in decode_deep_rle32() Fixes: out of array read Fixes: 20796/clusterfuzz-testcase-minimize

[FFmpeg-cvslog] avcodec/iff: Check length before memcpy() in decode_deep_rle32()

ffmpeg | branch: master | Michael Niedermayer | Tue Apr 21 00:03:40 2020 +0200| [b4a33387cb1cd3f4c5036e65e0fdd953c6b5012f] | committer: Michael Niedermayer avcodec/iff: Check length before memcpy() in decode_deep_rle32() Fixes: out of array read Fixes: 20796/clusterfuzz-testcase-minimized-ffm