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| author | Maxime Ripard <maxime.ripard@free-electrons.com> | 2013-04-08 21:39:22 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2013-04-08 21:39:22 +0200 |
| commit | 7c91d302ffe2ffac813c47d6ba2e7489a2ccb35f (patch) | |
| tree | 78a2cf601e986694765b28079bf749a8eaa6a2b9 /kernel/user_namespace.c | |
| parent | 0b824f8dad9fdfc7c1bf9c1d3ac744075eb73ec6 (diff) | |
| parent | 918d7f6f68620e0721bb31402ebf87e15f826831 (diff) | |
| download | kernel_replicant_linux-7c91d302ffe2ffac813c47d6ba2e7489a2ccb35f.tar.gz kernel_replicant_linux-7c91d302ffe2ffac813c47d6ba2e7489a2ccb35f.tar.bz2 kernel_replicant_linux-7c91d302ffe2ffac813c47d6ba2e7489a2ccb35f.zip | |
Merge remote-tracking branch 'clk/clk-for-3.10' into sunxi/core-for-3.10
Diffstat (limited to 'kernel/user_namespace.c')
| -rw-r--r-- | kernel/user_namespace.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c index 8b650837083e..b14f4d342043 100644 --- a/kernel/user_namespace.c +++ b/kernel/user_namespace.c @@ -21,6 +21,7 @@ #include <linux/uaccess.h> #include <linux/ctype.h> #include <linux/projid.h> +#include <linux/fs_struct.h> static struct kmem_cache *user_ns_cachep __read_mostly; @@ -837,6 +838,9 @@ static int userns_install(struct nsproxy *nsproxy, void *ns) if (atomic_read(¤t->mm->mm_users) > 1) return -EINVAL; + if (current->fs->users != 1) + return -EINVAL; + if (!ns_capable(user_ns, CAP_SYS_ADMIN)) return -EPERM; |