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a valid RLE bitmap can decompress to far more than its input size, an early end-of-picture code leaves the rest of the canvas blank, thus we cannot add a check in bmp decode Fixes: Timeout Fixes: 510821718/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BMP_DEC_fuzzer-5011979420106752 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>