[Bug malloc/25947] New: memory leak in muntrace

["wangxuszcn at foxmail dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=25947

            Bug ID: 25947
           Summary: memory leak in muntrace
           Product: glibc
           Version: 2.3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: malloc
          Assignee: unassigned at sourceware dot org
          Reporter: wangxuszcn at foxmail dot com
  Target Milestone: ---

Since glibc 2.32, stream buffer used by mallstream in mtrace() function, should
be freed in muntrace(), or 512 byte will leaked every call of mtrace().


Patches can be like this:
diff --git a/malloc/mtrace.c b/malloc/mtrace.c
index 7e7719d..b3bc5b0 100644
--- a/malloc/mtrace.c
+++ b/malloc/mtrace.c
@@ -365,4 +365,5 @@ muntrace (void)

   fprintf (f, "= End\n");
   fclose (f);
+  free (malloc_trace_buffer);
 }

Will any one request a CVE for this issue?

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