diff --git a/cfg/posix.cfg b/cfg/posix.cfg
index cce1045b3..fdda32e01 100644
--- a/cfg/posix.cfg
+++ b/cfg/posix.cfg
@@ -2045,8 +2045,8 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
   <function name="srandom">
     <noreturn>false</noreturn>
     <returnValue type="void"/>
-    <!-- It is common practice to call srandom with an uninitialized 
-         variable. Therefore, no warning shall be generated in this 
+    <!-- It is common practice to call srandom with an uninitialized
+         variable. Therefore, no warning shall be generated in this
          very special case. -->
     <arg nr="1"/>
   </function>
@@ -2324,7 +2324,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
       <not-uninit/>
       <not-bool/>
     </arg>
-  </function> 
+  </function>
   <!-- ssize_t recv(int sockfd, void *buf, size_t len, int flags); -->
   <function name="recv">
     <returnValue type="ssize_t"/>
@@ -4672,6 +4672,23 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
     <warn severity="style" reason="Obsolescent" alternatives="pthread_attr_setstack"/>
   </function>
+  <!-- https://man7.org/linux/man-pages/man3/pthread_attr_setstack.3.html -->
+  <!-- int pthread_attr_setstack(pthread_attr_t *attr, void *stackaddr, size_t stacksize); -->
+  <function name="pthread_attr_setstack">
+    <returnValue type="int"/>
+    <noreturn>false</noreturn>
+    <use-retval/>
+    <arg nr="1" direction="in">
+      <not-uninit/>
+      <not-null/>
+    </arg>
+    <arg nr="2" direction="in">
+      <not-uninit/>
+    </arg>
+    <arg nr="3" direction="in">
+      <not-uninit/>
+    </arg>
+  </function>
   <!-- int pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr); -->
   <function name="pthread_attr_getstackaddr">
     <noreturn>false</noreturn>
@@ -4703,6 +4720,25 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
       <valid>0:</valid>
     </arg>
   </function>
+  <!-- https://man7.org/linux/man-pages/man3/pthread_attr_getstack.3.html -->
+  <!-- int pthread_attr_getstack(const pthread_attr_t *restrict attr, void **restrict stackaddr, size_t *restrict stacksize); -->
+  <function name="pthread_attr_getstack">
+    <returnValue type="int"/>
+    <noreturn>false</noreturn>
+    <use-retval/>
+    <arg nr="1" direction="in">
+      <not-uninit/>
+      <not-null/>
+    </arg>
+    <arg nr="2" direction="out">
+      <not-null/>
+      <not-uninit/>
+    </arg>
+    <arg nr="3" direction="out">
+      <not-null/>
+      <not-uninit/>
+    </arg>
+  </function>
   <!-- int pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize); -->
   <!-- int pthread_attr_getguardsize(const pthread_attr_t *attr, size_t *guardsize); -->
   <function name="pthread_attr_getstacksize,pthread_attr_getguardsize">
@@ -5016,7 +5052,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
     <arg nr="5" direction="out">
       <not-null/>
-    </arg>    
+    </arg>
   </function>
   <!-- https://man7.org/linux/man-pages/man3/getgrnam.3.html -->
   <!-- int getgrgid_r(gid_t gid, struct group *restrict grp, char *restrict buf, size_t buflen, struct group **restrict result); -->
@@ -5043,8 +5079,8 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
     <arg nr="5" direction="out">
       <not-null/>
-    </arg>    
-  </function>                      
+    </arg>
+  </function>
   <!-- char *getlogin(void); -->
   <function name="getlogin">
     <returnValue type="char *"/>
@@ -5158,8 +5194,8 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
       <not-null/>
       <not-uninit/>
       <not-bool/>
-      <minsize type="argvalue" arg="2"/>   
-      <strz/>   
+      <minsize type="argvalue" arg="2"/>
+      <strz/>
     </arg>
     <arg nr="2" direction="in">
       <not-uninit/>
@@ -5168,7 +5204,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
   </function>
   <!-- http://man7.org/linux/man-pages/man3/scandir.3.html -->
-  <!-- int scandir(const char *dirp, 
+  <!-- int scandir(const char *dirp,
                     struct dirent ***namelist,
                     int (*filter)(const struct dirent *),
                     int (*compar)(const struct dirent **, const struct dirent **));-->
@@ -5240,7 +5276,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     </arg>
   </function>
   <!-- https://pubs.opengroup.org/onlinepubs/9699919799/functions/exec.html -->
-  <!-- int execv(const char *path, char *const argv[]); 
+  <!-- int execv(const char *path, char *const argv[]);
        int execvp(const char *file, char *const argv[]); -->
   <function name="execv,execvp">
     <returnValue type="int"/>
@@ -6230,7 +6266,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
   <define name="S_IFDIR" value="0040000"/>
   <define name="S_IFCHR" value="0020000"/>
   <define name="S_IFIFO" value="0010000"/>
-  <!-- see http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html 
+  <!-- see http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html
        Some other signals are defined in std.cfg! -->
   <define name="SIGHUP" value="1"/>
   <define name="SIGQUIT" value="3"/>
diff --git a/test/cfg/posix.c b/test/cfg/posix.c
index 303a81cad..293248aab 100644
--- a/test/cfg/posix.c
+++ b/test/cfg/posix.c
@@ -36,6 +36,31 @@
 #include <string.h>
 #include <strings.h>
 
+void nullPointer_pthread_attr_getstack(const pthread_attr_t *attr, void *stackaddr, size_t stacksize) {
+  // cppcheck-suppress nullPointer
+  (void) pthread_attr_getstack(NULL, &stackaddr, &stacksize);
+  // cppcheck-suppress nullPointer
+  (void) pthread_attr_getstack(attr, NULL, &stacksize);
+  // cppcheck-suppress nullPointer
+  (void) pthread_attr_getstack(attr, &stackaddr, NULL);
+  // cppcheck-suppress nullPointer
+  (void) pthread_attr_getstack(NULL, NULL, &stacksize);
+  // cppcheck-suppress nullPointer
+  (void) pthread_attr_getstack(NULL, &stackaddr, NULL);
+  // cppcheck-suppress nullPointer
+  (void) pthread_attr_getstack(attr, NULL, NULL);
+  // cppcheck-suppress nullPointer
+  (void) pthread_attr_getstack(NULL, NULL, NULL);
+}
+
+void nullPointer_pthread_attr_setstack(pthread_attr_t *attr) {
+  // cppcheck-suppress nullPointer
+  (void) pthread_attr_setstack(NULL, NULL, 0);
+  (void) pthread_attr_setstack(attr, NULL, 0);
+  // cppcheck-suppress nullPointer
+  (void) pthread_attr_setstack(NULL, (void*) 1, 0);
+}
+
 void nullPointer_setkey(const char *key)
 {
     // cppcheck-suppress nullPointer