Bug path

test_41
‘test_41’: events 1-4
473 if (flag) {
^
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(1) following ‘true’ branch (when ‘flag != 0’)...
474 buffer = (char*)malloc(4096);
~~~~~~~~~~~~
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(2) ...to here
(3) this call could return NULL
[...]
479 buffer[0] = 'a'; /* { dg-warning "dereference of possibly-NULL 'buffer'" "possibly-NULL" } */
~~~~~~~~~~~~~~~
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(4) ‘buffer’ could be NULL: unchecked value from (3)