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bug#47628: webkitgtk-2.32.0 fails to launch without /usr/bin
From: |
Mark H Weaver |
Subject: |
bug#47628: webkitgtk-2.32.0 fails to launch without /usr/bin |
Date: |
Tue, 13 Apr 2021 15:22:47 -0400 |
Hi Efraim,
Efraim Flashner <efraim@flashner.co.il> writes:
> On Thu, Apr 08, 2021 at 11:07:31AM -0400, Mark H Weaver wrote:
>> I suspect that the relevant bit that needs to be changed is line 779 of
>> the following file in the webkitgtk-2.32.0 source code:
>>
>> Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
>>
>> Most likely, that line can simply be deleted. Here's the relevant
>> excerpt, with line 779 marked by "==>":
>
> Looking at the other lines above it, we could just change it from
> ro-bind to ro-bind-try.
I expect that would work, but why should we give the sandbox access to
/usr/bin at all? I took a different approach: I removed access to *all*
of the FHS directories, since they should not be needed for a
Guix-compiled package.
Below, I've attached the patch that I'm currently using successfully on
my private branch of Guix.
What do you think?
Thanks,
Mark
>From 4a10e1deb63d1b2227a0bcc60a17ddb9af7b8cc3 Mon Sep 17 00:00:00 2001
From: Mark H Weaver <mhw@netris.org>
Date: Thu, 8 Apr 2021 11:27:55 -0400
Subject: [PATCH] DRAFT: gnu: webkitgtk: Trim system dirs made available to
sandbox.
* gnu/packages/patches/webkitgtk-share-store.patch: Adjust patch.
---
.../patches/webkitgtk-share-store.patch | 46 ++++++++++++++-----
1 file changed, 34 insertions(+), 12 deletions(-)
diff --git a/gnu/packages/patches/webkitgtk-share-store.patch
b/gnu/packages/patches/webkitgtk-share-store.patch
index 053d86fcf4..c02157076e 100644
--- a/gnu/packages/patches/webkitgtk-share-store.patch
+++ b/gnu/packages/patches/webkitgtk-share-store.patch
@@ -1,19 +1,41 @@
-Tell bubblewrap to share the store. Required for programs that use the
+Tell bubblewrap to share the store, and _not_ to share traditional FHS
+directories that are not used in Guix. Required for programs that use the
sandboxing features such as Epiphany.
-See <https://bugs.gnu.org/40837>.
-Author: Jack Hill <jackhill@jackhill.us>
----
+See <https://bugs.gnu.org/40837> and <https://bugs.gnu.org/47628>.
+Authors: Jack Hill <jackhill@jackhill.us> and Mark H Weaver <mhw@netris.org>.
+
diff --git a/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
b/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
--- a/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
+++ b/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
-@@ -737,6 +737,9 @@ GRefPtr<GSubprocess> bubblewrapSpawn(GSubprocessLauncher*
launcher, const Proces
- "--ro-bind-try", "/usr/local/share", "/usr/local/share",
+@@ -749,26 +749,18 @@
+ "--ro-bind", "/sys/dev", "/sys/dev",
+ "--ro-bind", "/sys/devices", "/sys/devices",
+
+- "--ro-bind-try", "/usr/share", "/usr/share",
+- "--ro-bind-try", "/usr/local/share", "/usr/local/share",
"--ro-bind-try", DATADIR, DATADIR,
-+ // Bind mount the store inside the WebKitGTK sandbox.
-+ "--ro-bind", "@storedir@", "@storedir@",
-+
- // We only grant access to the libdirs webkit is built with and
- // guess system libdirs. This will always have some edge cases.
- "--ro-bind-try", "/lib", "/lib",
+- // We only grant access to the libdirs webkit is built with and
+- // guess system libdirs. This will always have some edge cases.
+- "--ro-bind-try", "/lib", "/lib",
+- "--ro-bind-try", "/usr/lib", "/usr/lib",
+- "--ro-bind-try", "/usr/local/lib", "/usr/local/lib",
+- "--ro-bind-try", LIBDIR, LIBDIR,
+- "--ro-bind-try", "/lib64", "/lib64",
+- "--ro-bind-try", "/usr/lib64", "/usr/lib64",
+- "--ro-bind-try", "/usr/local/lib64", "/usr/local/lib64",
++ // Bind mount the store inside the WebKitGTK sandbox.
++ "--ro-bind", "@storedir@", "@storedir@",
+
++ // We only grant access to the libdirs webkit is built with.
++ "--ro-bind-try", LIBDIR, LIBDIR,
+ "--ro-bind-try", PKGLIBEXECDIR, PKGLIBEXECDIR,
+ };
+
+ if (launchOptions.processType == ProcessLauncher::ProcessType::DBusProxy)
{
+ sandboxArgs.appendVector(Vector<CString>({
+- "--ro-bind", "/usr/bin", "/usr/bin",
+ // This is a lot of access, but xdg-dbus-proxy is trusted so
that's OK. It's sandboxed
+ // only because we have to mount .flatpak-info in its mount
namespace. The user rundir
+ // is where we mount our proxy socket.
--
2.31.1
- bug#47628: Epiphany fails to launch after webkitgtk-2.32.0 update, Mark H Weaver, 2021/04/06
- bug#47628: webkitgtk-2.32.0 is broken on my system (was Re: bug#47628: Epiphany fails to launch after webkitgtk-2.32.0 update), Mark H Weaver, 2021/04/06
- bug#47628: webkitgtk-2.32.0 is broken on my system, Guillaume Le Vaillant, 2021/04/07
- bug#47628: webkitgtk-2.32.0 is broken on my system, Efraim Flashner, 2021/04/08
- bug#47628: webkitgtk-2.32.0 fails to launch without /usr/bin/env, Mark H Weaver, 2021/04/08
- bug#47628: webkitgtk-2.32.0 fails to launch without /usr/bin, Mark H Weaver, 2021/04/08
- bug#47628: webkitgtk-2.32.0 fails to launch without /usr/bin, Mark H Weaver, 2021/04/08
- bug#47628: webkitgtk-2.32.0 fails to launch without /usr/bin, Efraim Flashner, 2021/04/13
- bug#47628: webkitgtk-2.32.0 fails to launch without /usr/bin,
Mark H Weaver <=
- bug#47628: webkitgtk-2.32.0 fails to launch without /usr/bin, Efraim Flashner, 2021/04/14