diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index d06b51154..c2347a5c0 100755
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -1045,8 +1045,10 @@ void Tokenizer::simplifyTypedef()
                     // check for member functions
                     else if (isCPP() && Token::Match(tok2, ")|] const| {")) {
                         const Token *temp = tok2;
-                        while (temp->str() == "]")
+                        while (temp && temp->str() == "]" && temp->link() && temp->link()->previous())
                             temp = temp->link()->previous();
+                        if (!temp || !temp->link() || !temp->link()->previous())
+                            continue;
                         const Token *func = temp->link()->previous();
                         if (temp->str() != ")")
                             continue;
diff --git a/test/testsimplifytypedef.cpp b/test/testsimplifytypedef.cpp
index c40d9844b..4ce1c21f2 100644
--- a/test/testsimplifytypedef.cpp
+++ b/test/testsimplifytypedef.cpp
@@ -159,6 +159,7 @@ private:
         TEST_CASE(simplifyTypedef119); // ticket #7541
         TEST_CASE(simplifyTypedef120); // ticket #8357
         TEST_CASE(simplifyTypedef121); // ticket #5766
+        TEST_CASE(simplifyTypedef122); // segmentation fault
 
         TEST_CASE(simplifyTypedefFunction1);
         TEST_CASE(simplifyTypedefFunction2); // ticket #1685
@@ -2492,6 +2493,12 @@ private:
         ASSERT_EQUALS("", errout.str());
     }
 
+    void simplifyTypedef122() { // segmentation fault
+        const char code[] = "int result = [] { return git_run_cmd(\"update-index\",\"update-index -q --refresh\"); }();";
+        tok(code);
+        ASSERT_EQUALS("", errout.str());
+    }
+
     void simplifyTypedefFunction1() {
         {
             const char code[] = "typedef void (*my_func)();\n"