kdawson from the batten-the-hatches dept.
aquatix writes "This local root exploit (Debian, Ubuntu) seems to work everywhere I try it, as long as it's a Linux kernel version 2.6.17 to 126.96.36.199. If you don't trust your users (which you shouldn't), better compile a new kernel without vmsplice." Here is millw0rm's proof-of-concept code.
"The number of Unix installations has grown to 10, with more expected."
-- The Unix Programmer's Manual, 2nd Edition, June, 1972