The poll_mode_io file for the megaraid_sas driver in the Linux kernel 2.6.31.6 and earlier has world-writable permissions, which allows local users to change the I/O mode of the driver by modifying this file.
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00000.html
https://bugzilla.redhat.com/show_bug.cgi?id=526068
http://secunia.com/advisories/37909
http://secunia.com/advisories/38017
http://secunia.com/advisories/38276
http://secunia.com/advisories/38492
http://secunia.com/advisories/38779
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10310
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7540
https://rhn.redhat.com/errata/RHSA-2010-0046.html
https://rhn.redhat.com/errata/RHSA-2010-0095.html
http://support.avaya.com/css/P8/documents/100073666
http://www.debian.org/security/2010/dsa-1996
Published: 2009-11-16
Base Score: 6.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:C/A:C
Severity: Medium