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go.mod: update to github.com/cyphar/filepath-securejoin@v0.5.0

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In order to avoid lint errors due to the deprecation of the top-level
securejoin methods ported from libpathrs, we need to adjust
internal/pathrs to use the new pathrs-lite subpackage instead.

Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
This commit is contained in:
Aleksa Sarai
2025-05-06 11:23:40 +10:00
parent de87203e62
commit 44a0fcf685
49 changed files with 3254 additions and 926 deletions
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vendor/github.com/cyphar/filepath-securejoin/doc.go
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+21 -13
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@@ -1,3 +1,5 @@
// SPDX-License-Identifier: BSD-3-Clause
// Copyright (C) 2014-2015 Docker Inc & Go Authors. All rights reserved.
// Copyright (C) 2017-2024 SUSE LLC. All rights reserved.
// Use of this source code is governed by a BSD-style
@@ -14,14 +16,13 @@
// **not** safe against race conditions where an attacker changes the
// filesystem after (or during) the [SecureJoin] operation.
//
// The new API is made up of [OpenInRoot] and [MkdirAll] (and derived
// functions). These are safe against racing attackers and have several other
// protections that are not provided by the legacy API. There are many more
// operations that most programs expect to be able to do safely, but we do not
// provide explicit support for them because we want to encourage users to
// switch to [libpathrs](https://github.com/openSUSE/libpathrs) which is a
// cross-language next-generation library that is entirely designed around
// operating on paths safely.
// The new API is available in the [pathrs-lite] subpackage, and provide
// protections against racing attackers as well as several other key
// protections against attacks often seen by container runtimes. As the name
// suggests, [pathrs-lite] is a stripped down (pure Go) reimplementation of
// [libpathrs]. The main APIs provided are [OpenInRoot], [MkdirAll], and
// [procfs.Handle] -- other APIs are not planned to be ported. The long-term
// goal is for users to migrate to [libpathrs] which is more fully-featured.
//
// securejoin has been used by several container runtimes (Docker, runc,
// Kubernetes, etc) for quite a few years as a de-facto standard for operating
@@ -31,9 +32,16 @@
// API as soon as possible (or even better, switch to libpathrs).
//
// This project was initially intended to be included in the Go standard
// library, but [it was rejected](https://go.dev/issue/20126). There is now a
// [new Go proposal](https://go.dev/issue/67002) for a safe path resolution API
// that shares some of the goals of filepath-securejoin. However, that design
// is intended to work like `openat2(RESOLVE_BENEATH)` which does not fit the
// usecase of container runtimes and most system tools.
// library, but it was rejected (see https://go.dev/issue/20126). Much later,
// [os.Root] was added to the Go stdlib that shares some of the goals of
// filepath-securejoin. However, its design is intended to work like
// openat2(RESOLVE_BENEATH) which does not fit the usecase of container
// runtimes and most system tools.
//
// [pathrs-lite]: https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite
// [libpathrs]: https://github.com/openSUSE/libpathrs
// [OpenInRoot]: https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite#OpenInRoot
// [MkdirAll]: https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite#MkdirAll
// [procfs.Handle]: https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite/procfs#Handle
// [os.Root]: https:///pkg.go.dev/os#Root
package securejoin