Merge branch 'PHP-8.2' into PHP-8.3

* PHP-8.2:
  Fix phpGH-16727: Opcache bad signal 139 crash in ZTS bookworm (frankenphp)

Author: nielsdos

NEWS

@@ -7,6 +7,8 @@ PHP                                                                        NEWS
 
 - Core:
   . Fail early in *nix configuration build script. (hakre)
+  . Fixed bug GH-16727 (Opcache bad signal 139 crash in ZTS bookworm
+    (frankenphp)). (nielsdos)
 
 - FPM:
   . Fixed GH-16432 (PHP-FPM 8.2 SIGSEGV in fpm_get_status). (Jakub Zelenka)

Zend/zend_compile.c

@@ -8220,7 +8220,13 @@ static void zend_compile_class_decl(znode *result, zend_ast *ast, bool toplevel)
 	}
 
 	opline->op1_type = IS_CONST;
-	LITERAL_STR(opline->op1, lcname);
+	/* It's possible that `lcname` is not an interned string because it was not yet in the interned string table.
+	 * However, by this point another thread may have caused `lcname` to be added in the interned string table.
+	 * This will cause `lcname` to get freed once it is found in the interned string table. If we were to use
+	 * LITERAL_STR() here we would not change the `lcname` pointer to the new value, and it would point to the
+	 * now-freed string. This will cause issues when we use `lcname` in the code below. We solve this by using
+	 * zend_add_literal_string() which gives us the new value. */
+	opline->op1.constant = zend_add_literal_string(&lcname);
 
 	if (decl->flags & ZEND_ACC_ANON_CLASS) {
 		opline->opcode = ZEND_DECLARE_ANON_CLASS;