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-rw-r--r--gcc/fortran/interface.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/fortran/interface.c b/gcc/fortran/interface.c
index f33c663..b1a75a3 100644
--- a/gcc/fortran/interface.c
+++ b/gcc/fortran/interface.c
@@ -1981,7 +1981,8 @@ check_interface1 (gfc_interface *p, gfc_interface *q0,
static void
check_sym_interfaces (gfc_symbol *sym)
{
- char interface_name[GFC_MAX_SYMBOL_LEN + sizeof("generic interface ''")];
+ /* Provide sufficient space to hold "generic interface 'symbol.symbol'". */
+ char interface_name[2*GFC_MAX_SYMBOL_LEN+2 + sizeof("generic interface ''")];
gfc_interface *p;
if (sym->ns != gfc_current_ns)
@@ -1989,6 +1990,8 @@ check_sym_interfaces (gfc_symbol *sym)
if (sym->generic != NULL)
{
+ size_t len = strlen (sym->name) + sizeof("generic interface ''");
+ gcc_assert (len < sizeof (interface_name));
sprintf (interface_name, "generic interface '%s'", sym->name);
if (check_interface0 (sym->generic, interface_name))
return;