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From: leahneukirchen <leahneukirchen@users.noreply.github.com>
To: ml@inbox.vuxu.org
Subject: [PR PATCH] base-files: disable unprivileged eBPF by default.
Date: Thu, 22 Apr 2021 16:40:49 +0200	[thread overview]
Message-ID: <gh-mailinglist-notifications-41a7ca26-5023-4802-975b-f1789d68868e-void-packages-30424@inbox.vuxu.org> (raw)

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There is a new pull request by leahneukirchen against master on the void-packages repository

https://github.com/leahneukirchen/void-packages unpriv-ebpf
https://github.com/void-linux/void-packages/pull/30424

base-files: disable unprivileged eBPF by default.
eBPF allowed a fair amount of local privilege escalation in
the past, disallow it for ordinary users by default.

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#### General
- [ ] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)

#### Have the results of the proposed changes been tested?
- [ ] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
- [ ] I generally don't use the affected packages but briefly tested this PR

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A patch file from https://github.com/void-linux/void-packages/pull/30424.patch is attached

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From 22c83929afefc3e9afeecad4c203079489400d73 Mon Sep 17 00:00:00 2001
From: Leah Neukirchen <leah@vuxu.org>
Date: Thu, 22 Apr 2021 16:35:21 +0200
Subject: [PATCH] base-files: disable unprivileged eBPF by default.

eBPF allowed a fair amount of local privilege escalation in
the past, disallow it for ordinary users by default.
---
 srcpkgs/base-files/files/sysctl.conf | 5 ++++-
 srcpkgs/base-files/template          | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/srcpkgs/base-files/files/sysctl.conf b/srcpkgs/base-files/files/sysctl.conf
index 1e1a2768d677..7b73ee862b4e 100644
--- a/srcpkgs/base-files/files/sysctl.conf
+++ b/srcpkgs/base-files/files/sysctl.conf
@@ -2,7 +2,7 @@
 # User-alterable options are in 10-void-user.conf.
 
 # Append the PID to the core filename
-kernel.core_uses_pid = 1
+kernel.core_uses_pid=1
 
 # Enable hard and soft link protection
 fs.protected_hardlinks=1
@@ -13,3 +13,6 @@ kernel.kptr_restrict=1
 
 # Block non-uid-0 kernel profiling
 kernel.perf_event_paranoid=2
+
+# Block unprivileged use of eBPF
+kernel.unprivileged_bpf_disabled=1
diff --git a/srcpkgs/base-files/template b/srcpkgs/base-files/template
index ff629498408b..9ced039de8d9 100644
--- a/srcpkgs/base-files/template
+++ b/srcpkgs/base-files/template
@@ -1,6 +1,6 @@
 # Template file for 'base-files'
 pkgname=base-files
-version=0.141
+version=0.142
 revision=11
 bootstrap=yes
 depends="xbps-triggers"

             reply	other threads:[~2021-04-22 14:40 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-22 14:40 leahneukirchen [this message]
2021-04-22 14:47 ` leahneukirchen
2021-04-22 15:20 ` ericonr
2021-04-22 15:26 ` leahneukirchen
2021-04-22 16:00 ` ericonr
2021-05-04 12:12 ` [PR PATCH] [Updated] " leahneukirchen
2021-05-04 12:14 ` leahneukirchen
2021-05-04 18:27 ` [PR PATCH] [Merged]: " leahneukirchen
2021-05-05 15:21 ` Piraty

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