The cxgb_extension_ioctl function in drivers/net/cxgb3/cxgb3_main.c in the Linux kernel before 2.6.36-rc5 does not properly initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a CHELSIO_GET_QSET_NUM ioctl call.
http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
https://bugzilla.redhat.com/show_bug.cgi?id=633149
http://secunia.com/advisories/41440
http://secunia.com/advisories/42758
http://secunia.com/advisories/42884
http://secunia.com/advisories/46397
http://www.debian.org/security/2010/dsa-2126
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.36-rc5
http://www.openwall.com/lists/oss-security/2010/09/14/2
http://www.openwall.com/lists/oss-security/2010/09/14/7
http://www.redhat.com/support/errata/RHSA-2011-0017.html
http://www.ubuntu.com/usn/USN-1041-1
http://www.vmware.com/security/advisories/VMSA-2011-0012.html
Published: 2010-09-30
Base Score: 2.1
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N
Severity: Low