The patch titled
utsns: fix !CONFIG_UTS_NS behavior
has been added to the -mm tree. Its filename is
merge-sys_clone-sys_unshare-nsproxy-and-namespace-fix-2.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: utsns: fix !CONFIG_UTS_NS behavior
From: "Serge E. Hallyn" <serge@xxxxxxxxxx>
When CONFIG_UTS_NS=n, clone(CLONE_NEWUTS) quietly refuses. So correctly does
not unshare a new uts namespace, but also does not return -EINVAL.
Fix this to return -EINVAL so the caller knows his request was denied.
Signed-off-by: Serge E. Hallyn <serue@xxxxxxxxxx>
Cc: Badari Pulavarty <pbadari@xxxxxxxxxx>
Cc: Cedric Le Goater <clg@xxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/utsname.h | 3 +++
1 file changed, 3 insertions(+)
diff -puN include/linux/utsname.h~merge-sys_clone-sys_unshare-nsproxy-and-namespace-fix-2 include/linux/utsname.h
--- a/include/linux/utsname.h~merge-sys_clone-sys_unshare-nsproxy-and-namespace-fix-2
+++ a/include/linux/utsname.h
@@ -35,6 +35,7 @@ struct new_utsname {
#include <linux/sched.h>
#include <linux/kref.h>
#include <linux/nsproxy.h>
+#include <linux/err.h>
#include <asm/atomic.h>
struct uts_namespace {
@@ -60,6 +61,8 @@ static inline void put_uts_ns(struct uts
static inline struct uts_namespace *copy_utsname(int flags,
struct uts_namespace *ns)
{
+ if (flags & CLONE_NEWUTS)
+ return ERR_PTR(-EINVAL);
return ns;
}
_
Patches currently in -mm which might be from serge@xxxxxxxxxx are
merge-sys_clone-sys_unshare-nsproxy-and-namespace-fix-2.patch
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