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| author | Harald Anlauf <anlauf@gmx.de> | 2021-12-27 23:06:18 +0100 |
|---|---|---|
| committer | Harald Anlauf <anlauf@gmx.de> | 2021-12-29 18:27:39 +0100 |
| commit | d8f6c48ccb85ecc0d97a84c32b7a1b8f43c64fe4 (patch) | |
| tree | dea966826379a1cb42a526f2273eb0d30856e8e1 /gcc/fortran/match.c | |
| parent | ad964f7eaef9c03ce68a01cfdd7fde9d56524868 (diff) | |
| download | gcc-d8f6c48ccb85ecc0d97a84c32b7a1b8f43c64fe4.zip gcc-d8f6c48ccb85ecc0d97a84c32b7a1b8f43c64fe4.tar.gz gcc-d8f6c48ccb85ecc0d97a84c32b7a1b8f43c64fe4.tar.bz2 | |
Fortran: avoid several NULL pointer dereferences during error recovery
gcc/fortran/ChangeLog:
PR fortran/102332
* expr.c (gfc_get_variable_expr): Avoid NULL pointer dereferences
during handling of errors with invalid uses of CLASS variables.
* match.c (select_type_set_tmp): Likewise.
* primary.c (gfc_match_varspec): Likewise.
* resolve.c (resolve_variable): Likewise.
(resolve_select_type): Likewise.
gcc/testsuite/ChangeLog:
PR fortran/102332
* gfortran.dg/pr102332.f90: New test.
Diffstat (limited to 'gcc/fortran/match.c')
| -rw-r--r-- | gcc/fortran/match.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/fortran/match.c b/gcc/fortran/match.c index 617fb35..41faa53 100644 --- a/gcc/fortran/match.c +++ b/gcc/fortran/match.c @@ -6363,7 +6363,8 @@ select_type_set_tmp (gfc_typespec *ts) sym = tmp->n.sym; gfc_add_type (sym, ts, NULL); - if (selector->ts.type == BT_CLASS && selector->attr.class_ok) + if (selector->ts.type == BT_CLASS && selector->attr.class_ok + && selector->ts.u.derived && CLASS_DATA (selector)) { sym->attr.pointer = CLASS_DATA (selector)->attr.class_pointer; |