在使用upx对应用程序进行压缩的时候，出现这个错误，根本原因是selinux对这些文件进行了安全检查，要时upx能够正常使用，需要关闭selinux,具体操作是：
修改/etc/selinux/config文件的内容为
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
# targeted - Targeted processes are protected,
# mls - Multi Level Security
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
# targeted - Targeted processes are protected,
# mls - Multi Level Security
# SELINUXTYPE=targeted
在内核参数中添加selinux=0
在Fedora14系统上修改启动参数那一行
kernel /boot/vmlinuz-2.6.35.6-45.fc14.i686 ro root=UUID=414093bd-4326-4de0-9e39-657ef2ca7852 rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=zh_CN.UTF-8 KEYTABLE=us rhgb quiet selinux=0
重启系统，这样就解决问题