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| author | Takashi Iwai <tiwai@suse.de> | 2013-04-03 17:07:29 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-04-03 17:07:29 +0200 |
| commit | efc33ce197e4b6aaddf1eb2ba6293f51daf3c283 (patch) | |
| tree | 9eaceed3c855d5cbc91c2fc247bdcceafbf28cdf /kernel/user_namespace.c | |
| parent | 993884f6a26c6547fa3875f9d3fabdc4250d8da6 (diff) | |
| parent | 690a863ff03d9a29ace2b752b8f802fba78a842f (diff) | |
| download | linux-efc33ce197e4b6aaddf1eb2ba6293f51daf3c283.tar.bz2 | |
Merge branch 'for-linus' into for-next
Back-merge for cleaning up usb-audio code the recent commit modified,
and further UAC2 autoclock patches.
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; |