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-rw-r--r--include/linux/lsm_hook_defs.h1
-rw-r--r--include/linux/lsm_hooks.h4
-rw-r--r--include/linux/security.h6
3 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
index 806448173033..aa7272e83626 100644
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h
@@ -224,6 +224,7 @@ LSM_HOOK(int, -ENOSYS, task_prctl, int option, unsigned long arg2,
unsigned long arg3, unsigned long arg4, unsigned long arg5)
LSM_HOOK(void, LSM_RET_VOID, task_to_inode, struct task_struct *p,
struct inode *inode)
+LSM_HOOK(int, 0, userns_create, const struct cred *cred)
LSM_HOOK(int, 0, ipc_permission, struct kern_ipc_perm *ipcp, short flag)
LSM_HOOK(void, LSM_RET_VOID, ipc_getsecid, struct kern_ipc_perm *ipcp,
u32 *secid)
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 84a0d7e02176..2e11a2a22ed1 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -806,6 +806,10 @@
* security attributes, e.g. for /proc/pid inodes.
* @p contains the task_struct for the task.
* @inode contains the inode structure for the inode.
+ * @userns_create:
+ * Check permission prior to creating a new user namespace.
+ * @cred points to prepared creds.
+ * Return 0 if successful, otherwise < 0 error code.
*
* Security hooks for Netlink messaging.
*
diff --git a/include/linux/security.h b/include/linux/security.h
index 1bc362cb413f..767802fe9bfa 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -437,6 +437,7 @@ int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
unsigned long arg4, unsigned long arg5);
void security_task_to_inode(struct task_struct *p, struct inode *inode);
+int security_create_user_ns(const struct cred *cred);
int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
int security_msg_msg_alloc(struct msg_msg *msg);
@@ -1194,6 +1195,11 @@ static inline int security_task_prctl(int option, unsigned long arg2,
static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
{ }
+static inline int security_create_user_ns(const struct cred *cred)
+{
+ return 0;
+}
+
static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
short flag)
{