The MITRE CVE dictionary describes this issue as:
Integer underflow in the Open Sound System (OSS) subsystem in the Linux kernel before 2.6.39 on unspecified non-x86 platforms allows local users to cause a denial of service (memory corruption) by leveraging write access to /dev/sequencer.
Find out more about CVE-2011-1476 from the
MITRE CVE dictionary dictionary and
Not vulnerable. This issue did not affect the versions of Linux kernel as
shipped with Red Hat Enterprise Linux 4, 5, 6 and Red Hat Enterprise MRG as
they did not provide support for Open Sound System (OSS).