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authorDaniel Vetter <daniel.vetter@ffwll.ch>2014-03-31 10:40:13 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-03-31 10:45:15 +0200
commit0654a65f26d4b226c0b3e8a050db100200a6b924 (patch)
tree7b448b84cdc7ec0bbbd1ad6e9500eef94af0bfe8 /kernel/audit.c
parente1f23f3dd817f53f622e486913ac662add46eeed (diff)
parent455c6fdbd219161bd09b1165f11699d6d73de11c (diff)
Merge tag 'v3.14' into drm-intel-next-queued
Linux 3.14 The vt-d w/a merged late in 3.14-rc needs a bit of fine-tuning, hence backmerge. Conflicts: drivers/gpu/drm/i915/i915_gem_gtt.c drivers/gpu/drm/i915/intel_ddi.c drivers/gpu/drm/i915/intel_dp.c All trivial adjacent lines changed type conflicts, so trivial git doesn't even show them in the merg commit. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'kernel/audit.c')
-rw-r--r--kernel/audit.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/audit.c b/kernel/audit.c
index 3392d3e0254..95a20f3f52f 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -608,9 +608,19 @@ static int audit_netlink_ok(struct sk_buff *skb, u16 msg_type)
int err = 0;
/* Only support the initial namespaces for now. */
+ /*
+ * We return ECONNREFUSED because it tricks userspace into thinking
+ * that audit was not configured into the kernel. Lots of users
+ * configure their PAM stack (because that's what the distro does)
+ * to reject login if unable to send messages to audit. If we return
+ * ECONNREFUSED the PAM stack thinks the kernel does not have audit
+ * configured in and will let login proceed. If we return EPERM
+ * userspace will reject all logins. This should be removed when we
+ * support non init namespaces!!
+ */
if ((current_user_ns() != &init_user_ns) ||
(task_active_pid_ns(current) != &init_pid_ns))
- return -EPERM;
+ return -ECONNREFUSED;
switch (msg_type) {
case AUDIT_LIST: