CVE-2009-0029

The ABI in the Linux kernel 2.6.28 and earlier on s390, powerpc, sparc64,
and mips 64-bit platforms requires that a 32-bit argument in a 64-bit
register was properly sign extended when sent from a user-mode application,
but cannot verify this, which allows local users to cause a denial of
service (crash) or possibly gain privileges via a crafted system call.