diff options
Diffstat (limited to 'kernel/utsname.c')
-rw-r--r-- | kernel/utsname.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/kernel/utsname.c b/kernel/utsname.c index a7b3a8d1ad24..44646179eaba 100644 --- a/kernel/utsname.c +++ b/kernel/utsname.c | |||
@@ -31,7 +31,8 @@ static struct uts_namespace *create_uts_ns(void) | |||
31 | * @old_ns: namespace to clone | 31 | * @old_ns: namespace to clone |
32 | * Return NULL on error (failure to kmalloc), new ns otherwise | 32 | * Return NULL on error (failure to kmalloc), new ns otherwise |
33 | */ | 33 | */ |
34 | static struct uts_namespace *clone_uts_ns(struct uts_namespace *old_ns) | 34 | static struct uts_namespace *clone_uts_ns(struct task_struct *tsk, |
35 | struct uts_namespace *old_ns) | ||
35 | { | 36 | { |
36 | struct uts_namespace *ns; | 37 | struct uts_namespace *ns; |
37 | 38 | ||
@@ -41,8 +42,7 @@ static struct uts_namespace *clone_uts_ns(struct uts_namespace *old_ns) | |||
41 | 42 | ||
42 | down_read(&uts_sem); | 43 | down_read(&uts_sem); |
43 | memcpy(&ns->name, &old_ns->name, sizeof(ns->name)); | 44 | memcpy(&ns->name, &old_ns->name, sizeof(ns->name)); |
44 | ns->user_ns = old_ns->user_ns; | 45 | ns->user_ns = get_user_ns(task_cred_xxx(tsk, user)->user_ns); |
45 | get_user_ns(ns->user_ns); | ||
46 | up_read(&uts_sem); | 46 | up_read(&uts_sem); |
47 | return ns; | 47 | return ns; |
48 | } | 48 | } |
@@ -53,8 +53,10 @@ static struct uts_namespace *clone_uts_ns(struct uts_namespace *old_ns) | |||
53 | * utsname of this process won't be seen by parent, and vice | 53 | * utsname of this process won't be seen by parent, and vice |
54 | * versa. | 54 | * versa. |
55 | */ | 55 | */ |
56 | struct uts_namespace *copy_utsname(unsigned long flags, struct uts_namespace *old_ns) | 56 | struct uts_namespace *copy_utsname(unsigned long flags, |
57 | struct task_struct *tsk) | ||
57 | { | 58 | { |
59 | struct uts_namespace *old_ns = tsk->nsproxy->uts_ns; | ||
58 | struct uts_namespace *new_ns; | 60 | struct uts_namespace *new_ns; |
59 | 61 | ||
60 | BUG_ON(!old_ns); | 62 | BUG_ON(!old_ns); |
@@ -63,7 +65,7 @@ struct uts_namespace *copy_utsname(unsigned long flags, struct uts_namespace *ol | |||
63 | if (!(flags & CLONE_NEWUTS)) | 65 | if (!(flags & CLONE_NEWUTS)) |
64 | return old_ns; | 66 | return old_ns; |
65 | 67 | ||
66 | new_ns = clone_uts_ns(old_ns); | 68 | new_ns = clone_uts_ns(tsk, old_ns); |
67 | 69 | ||
68 | put_uts_ns(old_ns); | 70 | put_uts_ns(old_ns); |
69 | return new_ns; | 71 | return new_ns; |