Hi Nick, On Wed, Aug 30, 2023 at 12:49:53AM -0700, syzbot wrote: > UBSAN: array-index-out-of-bounds in lib/zstd/common/fse_decompress.c:345:30 > index 33 is out of range for type 'FSE_DTable[1]' (aka 'unsigned int[1]') Zstandard needs to be converted to use C99 flex-arrays instead of length-1 arrays. https://github.com/facebook/zstd/pull/3785 would fix this in upstream Zstandard, though it doesn't work well with the fact that upstream Zstandard supports C90. Not sure how you want to handle this. - Eric
