pki: Fixed a possible crash.
pki: Fixed a possible crash.

mwgoldsmith/libssh,nviennot/libssh,jahrome/libssh,Distrotech/libssh,taikoo/libssh,robxu9/libssh,kedazo/libssh,wangshawn/libssh,rofl0r/libssh,Distrotech/libssh,mwgoldsmith/libssh,robxu9/libssh,bigcat26/libssh-mod,sebadoom/libssh,kedazo/libssh,miloj/libssh-v0.5,elastichosts/libssh,bigcat26/libssh-mod,mwgoldsmith/ssh,kedazo/libssh,wangshawn/libssh,miloj/libssh-v0.5,substack/libssh,bigcat26/libssh-mod,jt1/honeypot-libssh,sebadoom/libssh,mwgoldsmith/ssh,taikoo/libssh,substack/libssh,miloj/libssh-v0.5,nviennot/libssh,taikoo/libssh,bigcat26/libssh-mod,Distrotech/libssh,jt1/honeypot-libssh,jt1/honeypot-libssh,pouete/libssh,wangshawn/libssh,rofl0r/libssh,robxu9/libssh,mwgoldsmith/libssh,substack/libssh,miloj/libssh-v0.5,mwgoldsmith/ssh,DouglasHeriot/libssh,nviennot/libssh,pouete/libssh,nviennot/libssh,sebadoom/libssh,substack/libssh,robxu9/libssh,sebadoom/libssh,mwgoldsmith/ssh,pouete/libssh,rofl0r/libssh,jahrome/libssh,DouglasHeriot/libssh,wangshawn/libssh,DouglasHeriot/libssh,Distrotech/libssh,rofl0r/libssh,elastichosts/libssh,jt1/honeypot-libssh,jahrome/libssh,pouete/libssh,jahrome/libssh,taikoo/libssh,elastichosts/libssh,DouglasHeriot/libssh,kedazo/libssh,mwgoldsmith/libssh