diff --git a/cfg/gnu.cfg b/cfg/gnu.cfg
index 63dda17e4bc..ed9b886a539 100644
--- a/cfg/gnu.cfg
+++ b/cfg/gnu.cfg
@@ -597,7 +597,7 @@
       <not-null/>
       <not-uninit/>
     </arg>
-  </function>  
+  </function>
   <!-- https://www.gnu.org/software/libc/manual/html_node/Getopt-Long-Options.html#Getopt-Long-Options -->
   <!-- int getopt_long(int argc, char * const argv[],
            const char *optstring,
@@ -1165,7 +1165,7 @@
     </arg>
   </function>
   <!-- https://linux.die.net/man/3/mkostemp -->
-  <!-- int mkostemp(char *template, int flags); 
+  <!-- int mkostemp(char *template, int flags);
        int mkstemps(char *template, int suffixlen);-->
   <function name="mkostemp,mkstemps">
     <returnValue type="int"/>
@@ -1286,9 +1286,9 @@
       <not-null/>
       <not-bool/>
     </arg>
-  </function>  
+  </function>
   <!-- http://man7.org/linux/man-pages/man3/ffs.3.html -->
-  <!-- int ffsl(long int i); 
+  <!-- int ffsl(long int i);
        int ffsll(long long int i); -->
   <function name="ffsl,ffsll">
     <use-retval/>
@@ -1648,6 +1648,13 @@
       <not-uninit/>
     </arg>
   </function>
+  <!-- https://man7.org/linux/man-pages/man2/getcwd.2.html -->
+  <!-- char *get_current_dir_name(void); -->
+  <function name="get_current_dir_name">
+    <returnValue type="char *"/>
+    <use-retval/>
+    <noreturn>false</noreturn>
+  </function>
   <!-- https://man7.org/linux/man-pages/man3/error.3.html -->
   <!-- void error(int status, int errnum, const char *format, ...); -->
   <!-- void error_at_line(int status, int errnum, const char *filename, unsigned int linenum, const char *format, ...); -->
diff --git a/test/cfg/gnu.c b/test/cfg/gnu.c
index 296a3cc0442..bc765880df1 100644
--- a/test/cfg/gnu.c
+++ b/test/cfg/gnu.c
@@ -28,6 +28,9 @@
 #ifdef __gnu_linux__
 #include <error.h>
 #endif
+#ifdef _GNU_SOURCE
+#include <unistd.h>
+#endif
 #include <getopt.h>
 #include <netdb.h>
 
@@ -41,6 +44,34 @@ void unreachableCode_error(void) // #11197
 }
 #endif
 
+#ifdef _GNU_SOURCE
+void leakReturnValNotUsed_get_current_dir_name(void)
+{
+    // cppcheck-suppress leakReturnValNotUsed
+    get_current_dir_name();
+}
+
+void memleak_get_current_dir_name0(void)
+{
+    const char *const name = get_current_dir_name();
+    if (name)
+    {
+        // cppcheck-suppress memleak
+        return;
+    }
+}
+
+void memleak_get_current_dir_name1(void)
+{
+    const char *const name = get_current_dir_name();
+    if (name)
+    {
+        free(name);
+        return;
+    }
+}
+#endif
+
 int nullPointer_gethostbyname2_r(const char* name, int af, struct hostent* ret, const char* buf, size_t buflen, struct hostent** result, const int* h_errnop)
 {
     // cppcheck-suppress nullPointer