Array index error in the asihpi_hpi_ioctl function in sound/pci/asihpi/hpioctl.c in the AudioScience HPI driver in the Linux kernel before 2.6.38.1 might allow local users to cause a denial of service (memory corruption) or possibly gain privileges via a crafted adapter index value that triggers access to an invalid kernel pointer.

References

• https://nvd.nist.gov/vuln/detail/CVE-2011-1169
• https://bugzilla.redhat.com/show_bug.cgi?id=688898
• http://git.kernel.org/?p=linux/kernel/git/tiwai/sound-2.6.git;a=commit;h=4a122c10fbfe9020df469f0f669da129c5757671
• http://openwall.com/lists/oss-security/2011/03/18/1
• http://openwall.com/lists/oss-security/2011/03/18/2
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38.1
• http://git.kernel.org/?p=linux/kernel/git/tiwai/sound-2.6.git%3Ba=commit%3Bh=4a122c10fbfe9020df469f0f669da129c5757671