[Bug fortran/31538] New: result_in_spec_1.f90: Invalid write

[burnus at gcc dot gnu dot org]

The line 23 of gfortran.dg/result_in_spec_1.f90 (PR 31215) contains
      r(:)(i:i) = achar(mod(i,32)+iachar('@'))

With glibc's MALLOC_CHECK_=2 the program simply segfaults.

Running the test case using valgrind gives the following error:

==12576== Invalid write of size 1
==12576==    at 0x4C23DD7: memmove (in
/usr/lib64/valgrind/amd64-linux/vgpreload_memcheck.so)
==12576==    by 0x400ACF: __test1__test2 (result_in_spec_1.f90:23)
==12576==    by 0x4011D1: myfunc.1445 (result_in_spec_1.f90:42)
==12576==    by 0x400E9B: MAIN__ (result_in_spec_1.f90:35)
==12576==    by 0x4014EB: main (fmain.c:22)
==12576==  Address 0x404E8BE is 0 bytes after a block of size 6 alloc'd
==12576==    at 0x4C22D06: malloc (in
/usr/lib64/valgrind/amd64-linux/vgpreload_memcheck.so)
==12576==    by 0x4E3ED38: _gfortrani_get_mem (memory.c:53)
==12576==    by 0x40119F: myfunc.1445 (result_in_spec_1.f90:42)
==12576==    by 0x400E9B: MAIN__ (result_in_spec_1.f90:35)
==12576==    by 0x4014EB: main (fmain.c:22)


-- 
           Summary: result_in_spec_1.f90: Invalid write
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: burnus at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31538