Index: vsftpd-3.0.0/seccompsandbox.c
===================================================================
--- vsftpd-3.0.0.orig/seccompsandbox.c	2012-04-04 18:41:51.000000000 -0400
+++ vsftpd-3.0.0/seccompsandbox.c	2012-09-14 19:14:14.176526771 -0400
@@ -255,6 +255,7 @@
   allow_nr_2_arg_match(__NR_mmap,
                        3, PROT_READ|PROT_WRITE,
                        4, MAP_PRIVATE|MAP_ANON);
+  allow_nr(__NR_munmap);
   allow_nr_1_arg_mask(__NR_mprotect, 3, PROT_READ);
   allow_nr(__NR_brk);