This allows using a userspace program, pasta, to handle comms between
the build sandbox, and the outside world; allowing for full isolation
including the network namespace, closing the "fixed-output derivation
talks to the host over an abstract domain socket" hole for good.
Fixes CVE-2025-46416.
Co-Authored-By: Puck Meerburg <puck@puckipedia.com>
Change-Id: Ifd499b7dbb3784600a6e842fede65fc031ff9f15
Without this, verifying TLS certificates would fail on macOS, as well
as any system that doesn't have a certificate file at /etc/ssl/certs/ca-certificates.crt,
which includes e.g. Fedora.
(cherry picked from commit 37b22dae04)
Change-Id: Iaa2e0e9db3747645b5482c82e3e0e4e8f229f5f9
This is better for privacy and to avoid leaking netrc credentials in a
MITM attack, but also the assumption that we check the hash no longer
holds in some cases (in particular for impure derivations).
Partially reverts https://github.com/NixOS/nix/commit/5db358d4d78aea7204a8f22c5bf2a309267ee038.
upstream commits:
(cherry picked from commit c04bc17a5a0fdcb725a11ef6541f94730112e7b6)
(cherry picked from commit f2f47fa725fc87bfb536de171a2ea81f2789c9fb)
(cherry picked from commit 7b39cd631e0d3c3d238015c6f450c59bbc9cbc5b)
lix main:
(cherry picked from commit c1631b0a39)
Upstream-PR: https://github.com/NixOS/nix/pull/11585
Change-Id: Ia973420f6098113da05a594d48394ce1fe41fbb9
