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authorJosh Boyer <jwboyer@fedoraproject.org>2013-11-13 10:58:05 -0500
committerJosh Boyer <jwboyer@redhat.com>2013-11-13 14:09:29 -0500
commite3f67fd712a83052fdc3e4e82ae1fb9bc832c906 (patch)
tree42d3ffb53dfa5cbe3925ca816cfaa8d792ea0003 /Revert-userns-Allow-unprivileged-users-to-create-use.patch
parent991987b30763184d46ed1546f0712f2f6111995a (diff)
downloadkernel-e3f67fd712a83052fdc3e4e82ae1fb9bc832c906.tar.gz
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Enable USER_NS for root-only processes (rhbz 917708)
- Fixup keys-krb-support.patch to build with USER_NS enabled
Diffstat (limited to 'Revert-userns-Allow-unprivileged-users-to-create-use.patch')
-rw-r--r--Revert-userns-Allow-unprivileged-users-to-create-use.patch41
1 files changed, 41 insertions, 0 deletions
diff --git a/Revert-userns-Allow-unprivileged-users-to-create-use.patch b/Revert-userns-Allow-unprivileged-users-to-create-use.patch
new file mode 100644
index 000000000..5713dbb20
--- /dev/null
+++ b/Revert-userns-Allow-unprivileged-users-to-create-use.patch
@@ -0,0 +1,41 @@
+From e3da68be55914bfeedb8866f191cc0958579611d Mon Sep 17 00:00:00 2001
+From: Josh Boyer <jwboyer@fedoraproject.org>
+Date: Wed, 13 Nov 2013 10:21:18 -0500
+Subject: [PATCH] Revert "userns: Allow unprivileged users to create user
+ namespaces."
+
+This reverts commit 5eaf563e53294d6696e651466697eb9d491f3946.
+
+Conflicts:
+ kernel/fork.c
+---
+ kernel/fork.c | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+diff --git a/kernel/fork.c b/kernel/fork.c
+index f6d11fc..e04c9a7 100644
+--- a/kernel/fork.c
++++ b/kernel/fork.c
+@@ -1573,6 +1573,19 @@ long do_fork(unsigned long clone_flags,
+ long nr;
+
+ /*
++ * Do some preliminary argument and permissions checking before we
++ * actually start allocating stuff
++ */
++ if (clone_flags & CLONE_NEWUSER) {
++ /* hopefully this check will go away when userns support is
++ * complete
++ */
++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SETUID) ||
++ !capable(CAP_SETGID))
++ return -EPERM;
++ }
++
++ /*
+ * Determine whether and which event to report to ptracer. When
+ * called from kernel_thread or CLONE_UNTRACED is explicitly
+ * requested, no event is reported; otherwise, report if the event
+--
+1.8.3.1
+