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| author | Harald Anlauf <anlauf@gmx.de> | 2021-11-16 21:06:06 +0100 |
|---|---|---|
| committer | Harald Anlauf <anlauf@gmx.de> | 2021-11-16 21:06:06 +0100 |
| commit | 3b3c9932338650c9a402cf1bfbdf7dfc03e185e7 (patch) | |
| tree | 8163f9a35e8057e4f1ae72497e0ca340012e4e75 /gcc | |
| parent | a1d2b16202601e597fac1c0e6af6ee8cd09b52c0 (diff) | |
| download | gcc-3b3c9932338650c9a402cf1bfbdf7dfc03e185e7.zip gcc-3b3c9932338650c9a402cf1bfbdf7dfc03e185e7.tar.gz gcc-3b3c9932338650c9a402cf1bfbdf7dfc03e185e7.tar.bz2 | |
Fortran: avoid NULL pointer dereference on invalid range in logical SELECT CASE
gcc/fortran/ChangeLog:
PR fortran/103286
* resolve.c (resolve_select): Choose appropriate range limit to
avoid NULL pointer dereference when generating error message.
gcc/testsuite/ChangeLog:
PR fortran/103286
* gfortran.dg/pr103286.f90: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/fortran/resolve.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/pr103286.f90 | 11 |
2 files changed, 13 insertions, 1 deletions
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c index 705d232..f074a0a 100644 --- a/gcc/fortran/resolve.c +++ b/gcc/fortran/resolve.c @@ -8846,7 +8846,8 @@ resolve_select (gfc_code *code, bool select_type) || cp->low != cp->high)) { gfc_error ("Logical range in CASE statement at %L is not " - "allowed", &cp->low->where); + "allowed", + cp->low ? &cp->low->where : &cp->high->where); t = false; break; } diff --git a/gcc/testsuite/gfortran.dg/pr103286.f90 b/gcc/testsuite/gfortran.dg/pr103286.f90 new file mode 100644 index 0000000..1c18b71 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr103286.f90 @@ -0,0 +1,11 @@ +! { dg-do compile } +! { dg-options "std=gnu" } +! PR fortran/103286 - ICE in resolve_select + +program p + select case (.true.) ! { dg-warning "Extension: Conversion" } + case (1_8) + case (:0) ! { dg-error "Logical range in CASE statement" } + case (2:) ! { dg-error "Logical range in CASE statement" } + end select +end |