extra/linux-pae: drop 0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch

2 files changed, 0 insertions, 97 deletions

diff --git a/extra/linux-pae/0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch b/extra/linux-pae/0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
deleted file mode 100644
index 1e64e19f..00000000
--- a/extra/linux-pae/0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
+++ /dev/null
@@ -1,93 +0,0 @@
-From 9a5adbc45b1c7d43fe4b27936f2a6939660617a1 Mon Sep 17 00:00:00 2001
-Message-Id: <9a5adbc45b1c7d43fe4b27936f2a6939660617a1.1528777685.git.jan.steffens@gmail.com>
-From: Serge Hallyn <serge.hallyn@canonical.com>
-Date: Fri, 31 May 2013 19:12:12 +0100
-Subject: [PATCH 1/3] add sysctl to disallow unprivileged CLONE_NEWUSER by
- default
-
-Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
-[bwh: Remove unneeded binary sysctl bits]
-Signed-off-by: Daniel Micay <danielmicay@gmail.com>
----
- kernel/fork.c           | 15 +++++++++++++++
- kernel/sysctl.c         | 12 ++++++++++++
- kernel/user_namespace.c |  3 +++
- 3 files changed, 30 insertions(+)
-
-diff --git a/kernel/fork.c b/kernel/fork.c
-index a5d21c42acfc..675eb3f3a1d1 100644
---- a/kernel/fork.c
-+++ b/kernel/fork.c
-@@ -103,6 +103,11 @@
- 
- #define CREATE_TRACE_POINTS
- #include <trace/events/task.h>
-+#ifdef CONFIG_USER_NS
-+extern int unprivileged_userns_clone;
-+#else
-+#define unprivileged_userns_clone 0
-+#endif
- 
- /*
-  * Minimum number of threads to boot the kernel
-@@ -1592,6 +1597,10 @@ static __latent_entropy struct task_struct *copy_process(
- 	if ((clone_flags & (CLONE_NEWUSER|CLONE_FS)) == (CLONE_NEWUSER|CLONE_FS))
- 		return ERR_PTR(-EINVAL);
- 
-+	if ((clone_flags & CLONE_NEWUSER) && !unprivileged_userns_clone)
-+		if (!capable(CAP_SYS_ADMIN))
-+			return ERR_PTR(-EPERM);
-+
- 	/*
- 	 * Thread groups must share signals as well, and detached threads
- 	 * can only be started up within the thread group.
-@@ -2386,6 +2395,12 @@ int ksys_unshare(unsigned long unshare_flags)
- 	if (unshare_flags & CLONE_NEWNS)
- 		unshare_flags |= CLONE_FS;
- 
-+	if ((unshare_flags & CLONE_NEWUSER) && !unprivileged_userns_clone) {
-+		err = -EPERM;
-+		if (!capable(CAP_SYS_ADMIN))
-+			goto bad_unshare_out;
-+	}
-+
- 	err = check_unshare_flags(unshare_flags);
- 	if (err)
- 		goto bad_unshare_out;
-diff --git a/kernel/sysctl.c b/kernel/sysctl.c
-index 6a78cf70761d..35a1d24282f4 100644
---- a/kernel/sysctl.c
-+++ b/kernel/sysctl.c
-@@ -519,6 +522,15 @@ static struct ctl_table kern_table[] = {
- 		.proc_handler	= proc_dointvec,
- 	},
- #endif
-+#ifdef CONFIG_USER_NS
-+	{
-+		.procname	= "unprivileged_userns_clone",
-+		.data		= &unprivileged_userns_clone,
-+		.maxlen		= sizeof(int),
-+		.mode		= 0644,
-+		.proc_handler	= proc_dointvec,
-+	},
-+#endif
- #ifdef CONFIG_PROC_SYSCTL
- 	{
- 		.procname	= "tainted",
-diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
-index 246d4d4ce5c7..f64432b45cec 100644
---- a/kernel/user_namespace.c
-+++ b/kernel/user_namespace.c
-@@ -26,6 +26,9 @@
- #include <linux/bsearch.h>
- #include <linux/sort.h>
- 
-+/* sysctl */
-+int unprivileged_userns_clone;
-+
- static struct kmem_cache *user_ns_cachep __read_mostly;
- static DEFINE_MUTEX(userns_state_mutex);
- 
--- 
-2.17.1
-
diff --git a/extra/linux-pae/PKGBUILD b/extra/linux-pae/PKGBUILD
index 9cf7aac7..995f0c0d 100644
--- a/extra/linux-pae/PKGBUILD
+++ b/extra/linux-pae/PKGBUILD
@@ -18,7 +18,6 @@ source=(
   60-linux.hook  # pacman hook for depmod
   90-linux.hook  # pacman hook for initramfs regeneration
   linux.preset   # standard config files for mkinitcpio ramdisk
-  0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
 )
 validpgpkeys=(
   'ABAF11C65A2970B130ABE3C479BE3E4300411886'  # Linus Torvalds
@@ -41,9 +40,6 @@ prepare() {
   # add latest fixes from stable queue, if needed
   # http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git
 
-  # disable USER_NS for non-root users by default
-  patch -Np1 -i ../0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
-
   cat ../config - >.config <<END
 CONFIG_LOCALVERSION="${_kernelname}"
 CONFIG_LOCALVERSION_AUTO=n