In LALSimNeutronStarEOS structure, the name array is not long enough to contain the name of the EOS.

On line 62 of https://git.ligo.org/lscsoft/lalsuite/blob/master/lalsimulation/src/LALSimNeutronStarEOS.c#L62 the length 64 array is not long enough to contain the 4-piece piecewise polytrope name defined on line 485 of https://git.ligo.org/lscsoft/lalsuite/blob/master/lalsimulation/src/LALSimNeutronStarEOSPiecewisePolytrope.c#L485

Simply changing line 62 from char name[LALNameLength]; to char name[2*LALNameLength]; appears to solve the problem.