Mandrake Linux Security Advisory MDKSA-2003:014 - An updated kernel for Mandrake 9.0 is available with a number of bug fixes. This new package also fixes a security problem that allows non-root users to freeze the kernel, and a fix for a vulnerability in O_DIRECT handling that can create a limited information leak. This last bug also allows users to create minor file system corruption (this can easily be repaired by fsck).
c116e3fc3745453b25f2c7dce5ded5e55c55e7bc93d37b907f46a59d8a81e5a1