https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70070
Bug ID: 70070 Summary: ICE on initializing character data beyond min/max bound Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: gerhard.steinmetz.fort...@t-online.de Target Milestone: --- This code accidentally accesses invalid data : $ cat z1.f90 program p integer :: i character(1) :: c data (c(i:i), i=1,11) /11*'c'/ end $ gfortran-6 z1.f90 *** Error in `/usr/lib64/gcc/x86_64-suse-linux/6/f951': free(): invalid next size (fast): 0x00000000029ac080 *** ... internal compiler error: Aborted $ cat z3.f90 program p integer :: i character(99) :: c data (c(i:i), i=1,999) /999*'c'/ end $ gfortran-6 z3.f90 *** Error in `/usr/lib64/gcc/x86_64-suse-linux/6/f951': free(): invalid next size (normal): 0x0000000002fa2440 *** *** Error in `/usr/lib64/gcc/x86_64-suse-linux/6/f951': corrupted double-linked list: 0x0000000002f226f0 ***