[gcc r13-1143] analyzer: associate -Wanalyzer-double-fclose with CWE-1341

[David Malcolm <dmalcolm@gcc.gnu.org>]

https://gcc.gnu.org/g:065d191893234c1b2e4554fd78ba339d9b7d03e9

commit r13-1143-g065d191893234c1b2e4554fd78ba339d9b7d03e9
Author: David Malcolm <dmalcolm@redhat.com>
Date:   Thu Jun 16 17:27:08 2022 -0400

    analyzer: associate -Wanalyzer-double-fclose with CWE-1341
    
    gcc/analyzer/ChangeLog:
            * sm-file.cc (double_fclose::emit): Associate the warning with
            CWE-1341 ("Multiple Releases of Same Resource or Handle").
    
    gcc/testsuite/ChangeLog:
            * gcc.dg/analyzer/file-1.c (test_1): Verify that double-fclose is
            associated with CWE-1341.
    
    Signed-off-by: David Malcolm <dmalcolm@redhat.com>

Diff:
---
 gcc/analyzer/sm-file.cc                | 9 ++++++---
 gcc/testsuite/gcc.dg/analyzer/file-1.c | 2 +-
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/gcc/analyzer/sm-file.cc b/gcc/analyzer/sm-file.cc
index 8514af19766..f6cb29c7806 100644
--- a/gcc/analyzer/sm-file.cc
+++ b/gcc/analyzer/sm-file.cc
@@ -178,9 +178,12 @@ public:
 
   bool emit (rich_location *rich_loc) final override
   {
-    return warning_at (rich_loc, get_controlling_option (),
-		       "double %<fclose%> of FILE %qE",
-		       m_arg);
+    diagnostic_metadata m;
+    /* CWE-1341: Multiple Releases of Same Resource or Handle.  */
+    m.add_cwe (1341);
+    return warning_meta (rich_loc, m, get_controlling_option (),
+			 "double %<fclose%> of FILE %qE",
+			 m_arg);
   }
 
   label_text describe_state_change (const evdesc::state_change &change)
diff --git a/gcc/testsuite/gcc.dg/analyzer/file-1.c b/gcc/testsuite/gcc.dg/analyzer/file-1.c
index e8d934331fd..316cbb3d868 100644
--- a/gcc/testsuite/gcc.dg/analyzer/file-1.c
+++ b/gcc/testsuite/gcc.dg/analyzer/file-1.c
@@ -14,7 +14,7 @@ test_1 (const char *path)
 
   fclose (f); /* { dg-message "\\(4\\) \\.\\.\\.to here" "to here" } */
   /* { dg-message "\\(5\\) first 'fclose' here" "first fclose" { target *-*-* } .-1 } */
-  fclose (f); /* { dg-warning "double 'fclose' of FILE 'f'" "warning" } */ 
+  fclose (f); /* { dg-warning "double 'fclose' of FILE 'f' \\\[CWE-1341\\\]" "warning" } */ 
   /* { dg-message "second 'fclose' here; first 'fclose' was at \\(5\\)" "second fclose" { target *-*-* } .-1 } */
 }