Branch: refs/heads/master Home: https://github.com/NixOS/nixpkgs Commit: 63433537ce3f52f9bc460961b2b73e40db027447 https://github.com/NixOS/nixpkgs/commit/63433537ce3f52f9bc460961b2b73e40db027447 Author: Joachim Fasting <joach...@fastmail.fm> Date: 2017-04-29 (Sat, 29 Apr 2017)
Changed paths: M nixos/modules/profiles/hardened.nix Log Message: ----------- nixos/hardened profile: disable legacy virtual syscalls This eliminates a theoretical risk of ASLR bypass due to the fixed address mapping used by the legacy vsyscall mechanism. Modern glibc use vdso(7) instead so there is no loss of functionality, but some programs may fail to run in this configuration. Programs that fail to run because vsyscall has been disabled will be logged to dmesg. For background on virtual syscalls see https://lwn.net/Articles/446528/ Closes https://github.com/NixOS/nixpkgs/pull/25289
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