The iowarrior_write function in drivers/usb/misc/iowarrior.c in the Linux kernel before 2.6.37 does not properly allocate memory, which might allow local users to trigger a heap-based buffer overflow, and consequently cause a denial of service or gain privileges, via a long report.
https://bugzilla.redhat.com/show_bug.cgi?id=672420
http://www.ubuntu.com/usn/USN-1146-1
http://www.securityfocus.com/bid/46069
http://openwall.com/lists/oss-security/2011/01/25/4
http://openwall.com/lists/oss-security/2011/01/25/3