The audit_syscall_entry function in the Linux kernel 2.6.28.7 and earlier on the x86_64 platform does not properly handle (1) a 32-bit process making a 64-bit syscall or (2) a 64-bit process making a 32-bit syscall, which allows local users to bypass certain syscall audit configurations via crafted syscalls, a related issue to CVE-2009-0342 and CVE-2009-0343.
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ccbe495caa5e604b04d5a31d7459a6f6a76a756c
lists.opensuse.org/opensuse-security-announce/2009-05/msg00002.html
lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html
lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html
marc.info/?l=linux-kernel&m=123579056530191&w=2
marc.info/?l=linux-kernel&m=123579065130246&w=2
marc.info/?l=oss-security&m=123597642832637&w=2
rhn.redhat.com/errata/RHSA-2009-0459.html
rhn.redhat.com/errata/RHSA-2009-0473.html
scary.beasts.org/security/CESA-2009-001.html
secunia.com/advisories/34084
secunia.com/advisories/34917
secunia.com/advisories/34962
secunia.com/advisories/34981
secunia.com/advisories/35011
secunia.com/advisories/35015
secunia.com/advisories/35120
secunia.com/advisories/35121
secunia.com/advisories/35185
secunia.com/advisories/35390
secunia.com/advisories/35394
secunia.com/advisories/37471
wiki.rpath.com/Advisories:rPSA-2009-0084
www.debian.org/security/2009/dsa-1787
www.debian.org/security/2009/dsa-1794
www.debian.org/security/2009/dsa-1800
www.mandriva.com/security/advisories?name=MDVSA-2009:118
www.redhat.com/support/errata/RHSA-2009-0451.html
www.securityfocus.com/archive/1/503610/100/0/threaded
www.securityfocus.com/archive/1/507985/100/0/threaded
www.securityfocus.com/bid/33951
www.securitytracker.com/id?1022153
www.ubuntu.com/usn/usn-751-1
www.vmware.com/security/advisories/VMSA-2009-0016.html
www.vupen.com/english/advisories/2009/3316
bugzilla.redhat.com/show_bug.cgi?id=487990
exchange.xforce.ibmcloud.com/vulnerabilities/49061
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8508
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9600