The kernel in Sun Solaris 9 allows local users to cause a denial of service (panic) by calling fstat with a first argument of AT_FDCWD.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6256
https://exchange.xforce.ibmcloud.com/vulnerabilities/50557
http://www.vupen.com/english/advisories/2009/1388
http://www.vupen.com/english/advisories/2009/1315
http://www.securitytracker.com/id?1022232
http://www.securityfocus.com/bid/34979
http://support.avaya.com/elmodocs2/security/ASA-2009-188.htm
http://sunsolve.sun.com/search/document.do?assetkey=1-66-257988-1
http://sunsolve.sun.com/search/document.do?assetkey=1-21-122300-40-1
http://secunia.com/advisories/35119