id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc 798,Wrong size for array of coeff delta idx,pierrick.bouvier,,"In, source/Lib/CommonLib/AlfParameters.h size of arrays: - lumaCoeff - lumaClipp - filterCoeffDeltaIdx - alfLumaCoeffFlag is wrongly defined to MAX_NUM_ALF_CLASSES (= 25). In spec, 7.4.3.16, it is said: '''The length of alf_luma_coeff_delta_idx[ filtIdx ] is Ceil( Log2( alf_luma_num_filters_signalled_minus1 + 1 ) ) bits.''' This results in this array having value possible between 0 and 32, instead of 0 and 25. This results in out-of-bounds memory access, leading to wrong values (unitialized) used in reconstruction, and finally, random differences in YUV output.",defect,closed,major,,spec,,fixed,,ksuehring XiangLi fbossen jvet@…