Fix segfault in xz compression/decompression
Fix segfault in xz compression/decompression

ysangkok/nix,NixOS/nix,bennofs/nix,peti/nix,dezgeg/nix,peti/nix,NixOS/nix,dtzWill/nix,ehmry/nix,ysangkok/nix,dtzWill/nix,rycee/nix,dtzWill/nix,rycee/nix,zimbatm/nix,ysangkok/nix,zimbatm/nix,ehmry/nix,layus/nix,layus/nix,dezgeg/nix,shlevy/nix,ehmry/nix,bennofs/nix,ehmry/nix,rycee/nix,peti/nix,ehmry/nix,NixOS/nix,layus/nix,dtzWill/nix,dtzWill/nix,dezgeg/nix,vcunat/nix,pikajude/nix,vcunat/nix,ehmry/nix,dezgeg/nix,zimbatm/nix,peti/nix,rycee/nix,pikajude/nix,bennofs/nix,peti/nix,shlevy/nix,pikajude/nix,vcunat/nix,NixOS/nix,dezgeg/nix,rycee/nix,layus/nix,bennofs/nix,shlevy/nix,shlevy/nix,vcunat/nix,layus/nix,zimbatm/nix,shlevy/nix,NixOS/nix