Hi, Miek, if you are using kernel 2.6-test6 or newer, maybe not worry about brk() bug. this kernel vulnerability effects under 2.4.22 and 2.6-test5.
in DSA-403, >This bug has been fixed in kernel version 2.4.23 for the 2.4 tree and >2.6.0-test6 kernel tree. For Debian it has been fixed in version >2.4.18-12 of the kernel source packages, version 2.4.18-14 of the i386 >kernel images and version 2.4.18-11 of the alpha kernel images. -- Regards, Hideki Yamane mailto:henrich @ iijmio-mail.jp

