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authorHarald Anlauf <anlauf@gmx.de>2022-11-16 21:41:19 +0100
committerHarald Anlauf <anlauf@gmx.de>2022-11-16 21:41:19 +0100
commit96e4244ef3ccf4867ca4e37fbc6800e64ef30af6 (patch)
treef80e99283009eccfed7a3dd8b8a309c5cdcdf74b /gcc/fortran
parent713dcfc85ebbabaf74a1bcbac4ba1143519b31d6 (diff)
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Fortran: error recovery after reference to bad CLASS variable [PR107681]
gcc/fortran/ChangeLog: PR fortran/107681 * resolve.cc (resolve_fl_var_and_proc): Prevent NULL pointer dereference with reference to bad CLASS variable. gcc/testsuite/ChangeLog: PR fortran/107681 * gfortran.dg/pr107681.f90: New test.
Diffstat (limited to 'gcc/fortran')
-rw-r--r--gcc/fortran/resolve.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/fortran/resolve.cc b/gcc/fortran/resolve.cc
index 5ff1cd0..24e5aa0 100644
--- a/gcc/fortran/resolve.cc
+++ b/gcc/fortran/resolve.cc
@@ -12967,6 +12967,7 @@ resolve_fl_var_and_proc (gfc_symbol *sym, int mp_flag)
&& sym->ts.u.derived
&& !sym->attr.select_type_temporary
&& !UNLIMITED_POLY (sym)
+ && CLASS_DATA (sym)->ts.u.derived
&& !gfc_type_is_extensible (CLASS_DATA (sym)->ts.u.derived))
{
gfc_error ("Type %qs of CLASS variable %qs at %L is not extensible",