CVE:CVE-2005-2099
CNNVD:CNNVD-200508-257
Linux内核2.6.12.5之前的版本不能正确地删除未正确实例化的密钥环。这使得本地用户或远程攻击者可以借助于具有非空负载的密钥环造成拒绝服务(内核oops)，这造成了创建失败，从而导致密钥环破坏者中产生空的解引用。
solution:Upgrade linux linux_kernel to a higher version than 2.6.0,2.6.0:test1,2.6.0:test10,2.6.0:test11,2.6.0:test2,2.6.0:test3,2.6.0:test4,2.6.0:test5,2.6.0:test6,2.6.0:test7,2.6.0:test8,2.6.0:test9,2.6.1,2.6.1:rc1,2.6.1:rc2,2.6.2,2.6.3,2.6.4,2.6.5,2.6.6,2.6.6:rc1,2.6.7,2.6.7:rc1,2.6.8,2.6.8:rc1,2.6.8:rc2,2.6.8:rc3,2.6.8.1,2.6.8.1.5,2.6.9:2.6.20,2.6.10,2.6.10:rc2,2.6.11,2.6.11:rc2,2.6.11:rc3,2.6.11:rc4,2.6.11.1,2.6.11.2,2.6.11.3,2.6.11.4,2.6.11.5,2.6.11.6,2.6.11.7,2.6.11.8,2.6.11_rc1_bk6,2.6.12:rc1,2.6.12:rc4,2.6_test9_cvs,and avoid the version 2.6.0,2.6.0:test1,2.6.0:test10,2.6.0:test11,2.6.0:test2,2.6.0:test3,2.6.0:test4,2.6.0:test5,2.6.0:test6,2.6.0:test7,2.6.0:test8,2.6.0:test9,2.6.1,2.6.1:rc1,2.6.1:rc2,2.6.2,2.6.3,2.6.4,2.6.5,2.6.6,2.6.6:rc1,2.6.7,2.6.7:rc1,2.6.8,2.6.8:rc1,2.6.8:rc2,2.6.8:rc3,2.6.8.1,2.6.8.1.5,2.6.9:2.6.20,2.6.10,2.6.10:rc2,2.6.11,2.6.11:rc2,2.6.11:rc3,2.6.11:rc4,2.6.11.1,2.6.11.2,2.6.11.3,2.6.11.4,2.6.11.5,2.6.11.6,2.6.11.7,2.6.11.8,2.6.11_rc1_bk6,2.6.12:rc1,2.6.12:rc4,2.6_test9_cvs