diff --git a/cfg/posix.cfg b/cfg/posix.cfg
index 5890e904e..f07f8fe8b 100644
--- a/cfg/posix.cfg
+++ b/cfg/posix.cfg
@@ -3101,6 +3101,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <arg nr="2" direction="in">
       <not-uninit/>
       <not-bool/>
+      <not-null/>
       <minsize type="argvalue" arg="3"/>
       <strz/>
     </arg>
@@ -3111,6 +3112,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
       <not-uninit/>
     </arg>
     <arg nr="5" direction="in">
+      <not-null/>
       <not-uninit/>
       <not-bool/>
     </arg>
@@ -4766,7 +4768,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
       <not-null/>
     </arg>
   </function>
-<!-- int posix_trace_timedgetnext_event(trace_id_t trid, struct posix_trace_event_info *restrict event, void *restrict data, size_t num_bytes, size_t *restrict data_len, int *restrict unavailable, const struct timespec *restrict abstime); -->
+  <!-- int posix_trace_timedgetnext_event(trace_id_t trid, struct posix_trace_event_info *restrict event, void *restrict data, size_t num_bytes, size_t *restrict data_len, int *restrict unavailable, const struct timespec *restrict abstime); -->
   <function name="posix_trace_timedgetnext_event">
     <returnValue type="int"/>
     <noreturn>false</noreturn>
diff --git a/test/cfg/posix.c b/test/cfg/posix.c
index 0bf820c79..ad7260402 100644
--- a/test/cfg/posix.c
+++ b/test/cfg/posix.c
@@ -36,6 +36,13 @@
 #include <string.h>
 #include <strings.h>
 
+void nullPointer_mq_timedsend(mqd_t mqdes, const char* msg_ptr, size_t msg_len, unsigned msg_prio, const struct timespec* abs_timeout) {
+  // cppcheck-suppress nullPointer
+  (void) mq_timedsend(mqdes, NULL, msg_len, msg_prio, abs_timeout);
+  // cppcheck-suppress nullPointer
+  (void) mq_timedsend(mqdes, msg_ptr, msg_len, msg_prio, NULL);
+}
+
 #if __TRACE_H__ // <trace.h>
 
 void nullPointer_posix_trace_event(trace_event_id_t event_id, const void* restrictdata_ptr, size_t data_len)