Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

Pull user namespace changes from Eric Biederman:
 "This is a mostly modest set of changes to enable basic user namespace
  support.  This allows the code to code to compile with user namespaces
  enabled and removes the assumption there is only the initial user
  namespace.  Everything is converted except for the most complex of the
  filesystems: autofs4, 9p, afs, ceph, cifs, coda, fuse, gfs2, ncpfs,
  nfs, ocfs2 and xfs as those patches need a bit more review.

  The strategy is to push kuid_t and kgid_t values are far down into
  subsystems and filesystems as reasonable.  Leaving the make_kuid and
  from_kuid operations to happen at the edge of userspace, as the values
  come off the disk, and as the values come in from the network.
  Letting compile type incompatible compile errors (present when user
  namespaces are enabled) guide me to find the issues.

  The most tricky areas have been the places where we had an implicit
  union of uid and gid values and were storing them in an unsigned int.
  Those places were converted into explicit unions.  I made certain to
  handle those places with simple trivial patches.

  Out of that work I discovered we have generic interfaces for storing
  quota by projid.  I had never heard of the project identifiers before.
  Adding full user namespace support for project identifiers accounts
  for most of the code size growth in my git tree.

  Ultimately there will be work to relax privlige checks from
  "capable(FOO)" to "ns_capable(user_ns, FOO)" where it is safe allowing
  root in a user names to do those things that today we only forbid to
  non-root users because it will confuse suid root applications.

  While I was pushing kuid_t and kgid_t changes deep into the audit code
  I made a few other cleanups.  I capitalized on the fact we process
  netlink messages in the context of the message sender.  I removed
  usage of NETLINK_CRED, and started directly using current->tty.

  Some of these patches have also made it into maintainer trees, with no
  problems from identical code from different trees showing up in
  linux-next.

  After reading through all of this code I feel like I might be able to
  win a game of kernel trivial pursuit."

Fix up some fairly trivial conflicts in netfilter uid/git logging code.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (107 commits)
  userns: Convert the ufs filesystem to use kuid/kgid where appropriate
  userns: Convert the udf filesystem to use kuid/kgid where appropriate
  userns: Convert ubifs to use kuid/kgid
  userns: Convert squashfs to use kuid/kgid where appropriate
  userns: Convert reiserfs to use kuid and kgid where appropriate
  userns: Convert jfs to use kuid/kgid where appropriate
  userns: Convert jffs2 to use kuid and kgid where appropriate
  userns: Convert hpfs to use kuid and kgid where appropriate
  userns: Convert btrfs to use kuid/kgid where appropriate
  userns: Convert bfs to use kuid/kgid where appropriate
  userns: Convert affs to use kuid/kgid wherwe appropriate
  userns: On alpha modify linux_to_osf_stat to use convert from kuids and kgids
  userns: On ia64 deal with current_uid and current_gid being kuid and kgid
  userns: On ppc convert current_uid from a kuid before printing.
  userns: Convert s390 getting uid and gid system calls to use kuid and kgid
  userns: Convert s390 hypfs to use kuid and kgid where appropriate
  userns: Convert binder ipc to use kuids
  userns: Teach security_path_chown to take kuids and kgids
  userns: Add user namespace support to IMA
  userns: Convert EVM to deal with kuids and kgids in it's hmac computation
  ...

8 files changed, 79 insertions, 83 deletions

diff --git a/security/keys/internal.h b/security/keys/internal.h
index 22ff05269e3d..8bbefc3b55d4 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -52,8 +52,7 @@ struct key_user {
         atomic_t                usage;          /* for accessing qnkeys & qnbytes */
         atomic_t                nkeys;          /* number of keys */
         atomic_t                nikeys;         /* number of instantiated keys */
-        uid_t                   uid;
-        struct user_namespace   *user_ns;
+        kuid_t                  uid;
         int                     qnkeys;         /* number of keys allocated to this user */
         int                     qnbytes;        /* number of bytes allocated to this user */
 };
@@ -62,8 +61,7 @@ extern struct rb_root	key_user_tree;
 extern spinlock_t       key_user_lock;
 extern struct key_user  root_key_user;
 
-extern struct key_user *key_user_lookup(uid_t uid,
-                                        struct user_namespace *user_ns);
+extern struct key_user *key_user_lookup(kuid_t uid);
 extern void key_user_put(struct key_user *user);
 
 /*
diff --git a/security/keys/key.c b/security/keys/key.c
index 3cbe3529c418..a30e92734905 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -18,7 +18,6 @@
 #include <linux/workqueue.h>
 #include <linux/random.h>
 #include <linux/err.h>
-#include <linux/user_namespace.h>
 #include "internal.h"
 
 struct kmem_cache *key_jar;
@@ -52,7 +51,7 @@ void __key_check(const struct key *key)
  * Get the key quota record for a user, allocating a new record if one doesn't
  * already exist.
  */
-struct key_user *key_user_lookup(uid_t uid, struct user_namespace *user_ns)
+struct key_user *key_user_lookup(kuid_t uid)
 {
         struct key_user *candidate = NULL, *user;
         struct rb_node *parent = NULL;
@@ -67,13 +66,9 @@ try_again:
                 parent = *p;
                 user = rb_entry(parent, struct key_user, node);
 
-                if (uid < user->uid)
+                if (uid_lt(uid, user->uid))
                         p = &(*p)->rb_left;
-                else if (uid > user->uid)
-                        p = &(*p)->rb_right;
-                else if (user_ns < user->user_ns)
-                        p = &(*p)->rb_left;
-                else if (user_ns > user->user_ns)
+                else if (uid_gt(uid, user->uid))
                         p = &(*p)->rb_right;
                 else
                         goto found;
@@ -102,7 +97,6 @@ try_again:
         atomic_set(&candidate->nkeys, 0);
         atomic_set(&candidate->nikeys, 0);
         candidate->uid = uid;
-        candidate->user_ns = get_user_ns(user_ns);
         candidate->qnkeys = 0;
         candidate->qnbytes = 0;
         spin_lock_init(&candidate->lock);
@@ -131,7 +125,6 @@ void key_user_put(struct key_user *user)
         if (atomic_dec_and_lock(&user->usage, &key_user_lock)) {
                 rb_erase(&user->node, &key_user_tree);
                 spin_unlock(&key_user_lock);
-                put_user_ns(user->user_ns);
 
                 kfree(user);
         }
@@ -229,7 +222,7 @@ serial_exists:
  * key_alloc() calls don't race with module unloading.
  */
 struct key *key_alloc(struct key_type *type, const char *desc,
-                      uid_t uid, gid_t gid, const struct cred *cred,
+                      kuid_t uid, kgid_t gid, const struct cred *cred,
                       key_perm_t perm, unsigned long flags)
 {
         struct key_user *user = NULL;
@@ -253,16 +246,16 @@ struct key *key_alloc(struct key_type *type, const char *desc,
         quotalen = desclen + type->def_datalen;
 
         /* get hold of the key tracking for this user */
-        user = key_user_lookup(uid, cred->user_ns);
+        user = key_user_lookup(uid);
         if (!user)
                 goto no_memory_1;
 
         /* check that the user's quota permits allocation of another key and
          * its description */
         if (!(flags & KEY_ALLOC_NOT_IN_QUOTA)) {
-                unsigned maxkeys = (uid == 0) ?
+                unsigned maxkeys = uid_eq(uid, GLOBAL_ROOT_UID) ?
                         key_quota_root_maxkeys : key_quota_maxkeys;
-                unsigned maxbytes = (uid == 0) ?
+                unsigned maxbytes = uid_eq(uid, GLOBAL_ROOT_UID) ?
                         key_quota_root_maxbytes : key_quota_maxbytes;
 
                 spin_lock(&user->lock);
@@ -380,7 +373,7 @@ int key_payload_reserve(struct key *key, size_t datalen)
 
         /* contemplate the quota adjustment */
         if (delta != 0 && test_bit(KEY_FLAG_IN_QUOTA, &key->flags)) {
-                unsigned maxbytes = (key->user->uid == 0) ?
+                unsigned maxbytes = uid_eq(key->user->uid, GLOBAL_ROOT_UID) ?
                         key_quota_root_maxbytes : key_quota_maxbytes;
 
                 spin_lock(&key->user->lock);
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 6cfc6478863e..305ecb76519c 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -569,8 +569,8 @@ okay:
         ret = snprintf(tmpbuf, PAGE_SIZE - 1,
                        "%s;%d;%d;%08x;%s",
                        key->type->name,
-                       key->uid,
-                       key->gid,
+                       from_kuid_munged(current_user_ns(), key->uid),
+                       from_kgid_munged(current_user_ns(), key->gid),
                        key->perm,
                        key->description ?: "");
 
@@ -766,15 +766,25 @@ error:
  *
  * If successful, 0 will be returned.
  */
-long keyctl_chown_key(key_serial_t id, uid_t uid, gid_t gid)
+long keyctl_chown_key(key_serial_t id, uid_t user, gid_t group)
 {
         struct key_user *newowner, *zapowner = NULL;
         struct key *key;
         key_ref_t key_ref;
         long ret;
+        kuid_t uid;
+        kgid_t gid;
+
+        uid = make_kuid(current_user_ns(), user);
+        gid = make_kgid(current_user_ns(), group);
+        ret = -EINVAL;
+        if ((user != (uid_t) -1) && !uid_valid(uid))
+                goto error;
+        if ((group != (gid_t) -1) && !gid_valid(gid))
+                goto error;
 
         ret = 0;
-        if (uid == (uid_t) -1 && gid == (gid_t) -1)
+        if (user == (uid_t) -1 && group == (gid_t) -1)
                 goto error;
 
         key_ref = lookup_user_key(id, KEY_LOOKUP_CREATE | KEY_LOOKUP_PARTIAL,
@@ -792,27 +802,27 @@ long keyctl_chown_key(key_serial_t id, uid_t uid, gid_t gid)
 
         if (!capable(CAP_SYS_ADMIN)) {
                 /* only the sysadmin can chown a key to some other UID */
-                if (uid != (uid_t) -1 && key->uid != uid)
+                if (user != (uid_t) -1 && !uid_eq(key->uid, uid))
                         goto error_put;
 
                 /* only the sysadmin can set the key's GID to a group other
                  * than one of those that the current process subscribes to */
-                if (gid != (gid_t) -1 && gid != key->gid && !in_group_p(gid))
+                if (group != (gid_t) -1 && !gid_eq(gid, key->gid) && !in_group_p(gid))
                         goto error_put;
         }
 
         /* change the UID */
-        if (uid != (uid_t) -1 && uid != key->uid) {
+        if (user != (uid_t) -1 && !uid_eq(uid, key->uid)) {
                 ret = -ENOMEM;
-                newowner = key_user_lookup(uid, current_user_ns());
+                newowner = key_user_lookup(uid);
                 if (!newowner)
                         goto error_put;
 
                 /* transfer the quota burden to the new user */
                 if (test_bit(KEY_FLAG_IN_QUOTA, &key->flags)) {
-                        unsigned maxkeys = (uid == 0) ?
+                        unsigned maxkeys = uid_eq(uid, GLOBAL_ROOT_UID) ?
                                 key_quota_root_maxkeys : key_quota_maxkeys;
-                        unsigned maxbytes = (uid == 0) ?
+                        unsigned maxbytes = uid_eq(uid, GLOBAL_ROOT_UID) ?
                                 key_quota_root_maxbytes : key_quota_maxbytes;
 
                         spin_lock(&newowner->lock);
@@ -846,7 +856,7 @@ long keyctl_chown_key(key_serial_t id, uid_t uid, gid_t gid)
         }
 
         /* change the GID */
-        if (gid != (gid_t) -1)
+        if (group != (gid_t) -1)
                 key->gid = gid;
 
         ret = 0;
@@ -897,7 +907,7 @@ long keyctl_setperm_key(key_serial_t id, key_perm_t perm)
         down_write(&key->sem);
 
         /* if we're not the sysadmin, we can only change a key that we own */
-        if (capable(CAP_SYS_ADMIN) || key->uid == current_fsuid()) {
+        if (capable(CAP_SYS_ADMIN) || uid_eq(key->uid, current_fsuid())) {
                 key->perm = perm;
                 ret = 0;
         }
@@ -1506,18 +1516,18 @@ long keyctl_session_to_parent(void)
 
         /* the parent must have the same effective ownership and mustn't be
          * SUID/SGID */
-        if (pcred->uid  != mycred->euid ||
-            pcred->euid != mycred->euid ||
-            pcred->suid != mycred->euid ||
-            pcred->gid  != mycred->egid ||
-            pcred->egid != mycred->egid ||
-            pcred->sgid != mycred->egid)
+        if (!uid_eq(pcred->uid,  mycred->euid) ||
+            !uid_eq(pcred->euid, mycred->euid) ||
+            !uid_eq(pcred->suid, mycred->euid) ||
+            !gid_eq(pcred->gid,  mycred->egid) ||
+            !gid_eq(pcred->egid, mycred->egid) ||
+            !gid_eq(pcred->sgid, mycred->egid))
                 goto unlock;
 
         /* the keyrings must have the same UID */
         if ((pcred->tgcred->session_keyring &&
-             pcred->tgcred->session_keyring->uid != mycred->euid) ||
-            mycred->tgcred->session_keyring->uid != mycred->euid)
+             !uid_eq(pcred->tgcred->session_keyring->uid, mycred->euid)) ||
+            !uid_eq(mycred->tgcred->session_keyring->uid, mycred->euid))
                 goto unlock;
 
         /* cancel an already pending keyring replacement */
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 81e7852d281d..a5f5c4b6edc5 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -256,7 +256,7 @@ error:
 /*
  * Allocate a keyring and link into the destination keyring.
  */
-struct key *keyring_alloc(const char *description, uid_t uid, gid_t gid,
+struct key *keyring_alloc(const char *description, kuid_t uid, kgid_t gid,
                           const struct cred *cred, unsigned long flags,
                           struct key *dest)
 {
@@ -612,7 +612,7 @@ struct key *find_keyring_by_name(const char *name, bool skip_perm_check)
                                     &keyring_name_hash[bucket],
                                     type_data.link
                                     ) {
-                        if (keyring->user->user_ns != current_user_ns())
+                        if (!kuid_has_mapping(current_user_ns(), keyring->user->uid))
                                 continue;
 
                         if (test_bit(KEY_FLAG_REVOKED, &keyring->flags))
diff --git a/security/keys/permission.c b/security/keys/permission.c
index 0b4d019e027d..efcc0c855a0d 100644
--- a/security/keys/permission.c
+++ b/security/keys/permission.c
@@ -36,33 +36,27 @@ int key_task_permission(const key_ref_t key_ref, const struct cred *cred,
 
         key = key_ref_to_ptr(key_ref);
 
-        if (key->user->user_ns != cred->user_ns)
-                goto use_other_perms;
-
         /* use the second 8-bits of permissions for keys the caller owns */
-        if (key->uid == cred->fsuid) {
+        if (uid_eq(key->uid, cred->fsuid)) {
                 kperm = key->perm >> 16;
                 goto use_these_perms;
         }
 
         /* use the third 8-bits of permissions for keys the caller has a group
          * membership in common with */
-        if (key->gid != -1 && key->perm & KEY_GRP_ALL) {
-                if (key->gid == cred->fsgid) {
+        if (gid_valid(key->gid) && key->perm & KEY_GRP_ALL) {
+                if (gid_eq(key->gid, cred->fsgid)) {
                         kperm = key->perm >> 8;
                         goto use_these_perms;
                 }
 
-                ret = groups_search(cred->group_info,
-                                    make_kgid(current_user_ns(), key->gid));
+                ret = groups_search(cred->group_info, key->gid);
                 if (ret) {
                         kperm = key->perm >> 8;
                         goto use_these_perms;
                 }
         }
 
-use_other_perms:
-
         /* otherwise use the least-significant 8-bits */
         kperm = key->perm;
 
diff --git a/security/keys/proc.c b/security/keys/proc.c
index 30d1ddfd9cef..217b6855e815 100644
--- a/security/keys/proc.c
+++ b/security/keys/proc.c
@@ -88,14 +88,14 @@ __initcall(key_proc_init);
  */
 #ifdef CONFIG_KEYS_DEBUG_PROC_KEYS
 
-static struct rb_node *key_serial_next(struct rb_node *n)
+static struct rb_node *key_serial_next(struct seq_file *p, struct rb_node *n)
 {
-        struct user_namespace *user_ns = current_user_ns();
+        struct user_namespace *user_ns = seq_user_ns(p);
 
         n = rb_next(n);
         while (n) {
                 struct key *key = rb_entry(n, struct key, serial_node);
-                if (key->user->user_ns == user_ns)
+                if (kuid_has_mapping(user_ns, key->user->uid))
                         break;
                 n = rb_next(n);
         }
@@ -107,9 +107,9 @@ static int proc_keys_open(struct inode *inode, struct file *file)
         return seq_open(file, &proc_keys_ops);
 }
 
-static struct key *find_ge_key(key_serial_t id)
+static struct key *find_ge_key(struct seq_file *p, key_serial_t id)
 {
-        struct user_namespace *user_ns = current_user_ns();
+        struct user_namespace *user_ns = seq_user_ns(p);
         struct rb_node *n = key_serial_tree.rb_node;
         struct key *minkey = NULL;
 
@@ -132,7 +132,7 @@ static struct key *find_ge_key(key_serial_t id)
                 return NULL;
 
         for (;;) {
-                if (minkey->user->user_ns == user_ns)
+                if (kuid_has_mapping(user_ns, minkey->user->uid))
                         return minkey;
                 n = rb_next(&minkey->serial_node);
                 if (!n)
@@ -151,7 +151,7 @@ static void *proc_keys_start(struct seq_file *p, loff_t *_pos)
 
         if (*_pos > INT_MAX)
                 return NULL;
-        key = find_ge_key(pos);
+        key = find_ge_key(p, pos);
         if (!key)
                 return NULL;
         *_pos = key->serial;
@@ -168,7 +168,7 @@ static void *proc_keys_next(struct seq_file *p, void *v, loff_t *_pos)
 {
         struct rb_node *n;
 
-        n = key_serial_next(v);
+        n = key_serial_next(p, v);
         if (n)
                 *_pos = key_node_serial(n);
         return n;
@@ -254,8 +254,8 @@ static int proc_keys_show(struct seq_file *m, void *v)
                    atomic_read(&key->usage),
                    xbuf,
                    key->perm,
-                   key->uid,
-                   key->gid,
+                   from_kuid_munged(seq_user_ns(m), key->uid),
+                   from_kgid_munged(seq_user_ns(m), key->gid),
                    key->type->name);
 
 #undef showflag
@@ -270,26 +270,26 @@ static int proc_keys_show(struct seq_file *m, void *v)
 
 #endif /* CONFIG_KEYS_DEBUG_PROC_KEYS */
 
-static struct rb_node *__key_user_next(struct rb_node *n)
+static struct rb_node *__key_user_next(struct user_namespace *user_ns, struct rb_node *n)
 {
         while (n) {
                 struct key_user *user = rb_entry(n, struct key_user, node);
-                if (user->user_ns == current_user_ns())
+                if (kuid_has_mapping(user_ns, user->uid))
                         break;
                 n = rb_next(n);
         }
         return n;
 }
 
-static struct rb_node *key_user_next(struct rb_node *n)
+static struct rb_node *key_user_next(struct user_namespace *user_ns, struct rb_node *n)
 {
-        return __key_user_next(rb_next(n));
+        return __key_user_next(user_ns, rb_next(n));
 }
 
-static struct rb_node *key_user_first(struct rb_root *r)
+static struct rb_node *key_user_first(struct user_namespace *user_ns, struct rb_root *r)
 {
         struct rb_node *n = rb_first(r);
-        return __key_user_next(n);
+        return __key_user_next(user_ns, n);
 }
 
 /*
@@ -309,10 +309,10 @@ static void *proc_key_users_start(struct seq_file *p, loff_t *_pos)
 
         spin_lock(&key_user_lock);
 
-        _p = key_user_first(&key_user_tree);
+        _p = key_user_first(seq_user_ns(p), &key_user_tree);
         while (pos > 0 && _p) {
                 pos--;
-                _p = key_user_next(_p);
+                _p = key_user_next(seq_user_ns(p), _p);
         }
 
         return _p;
@@ -321,7 +321,7 @@ static void *proc_key_users_start(struct seq_file *p, loff_t *_pos)
 static void *proc_key_users_next(struct seq_file *p, void *v, loff_t *_pos)
 {
         (*_pos)++;
-        return key_user_next((struct rb_node *)v);
+        return key_user_next(seq_user_ns(p), (struct rb_node *)v);
 }
 
 static void proc_key_users_stop(struct seq_file *p, void *v)
@@ -334,13 +334,13 @@ static int proc_key_users_show(struct seq_file *m, void *v)
 {
         struct rb_node *_p = v;
         struct key_user *user = rb_entry(_p, struct key_user, node);
-        unsigned maxkeys = (user->uid == 0) ?
+        unsigned maxkeys = uid_eq(user->uid, GLOBAL_ROOT_UID) ?
                 key_quota_root_maxkeys : key_quota_maxkeys;
-        unsigned maxbytes = (user->uid == 0) ?
+        unsigned maxbytes = uid_eq(user->uid, GLOBAL_ROOT_UID) ?
                 key_quota_root_maxbytes : key_quota_maxbytes;
 
         seq_printf(m, "%5u: %5d %d/%d %d/%d %d/%d\n",
-                   user->uid,
+                   from_kuid_munged(seq_user_ns(m), user->uid),
                    atomic_read(&user->usage),
                    atomic_read(&user->nkeys),
                    atomic_read(&user->nikeys),
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index 54339cfd6734..a58f712605d8 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -34,8 +34,7 @@ struct key_user root_key_user = {
         .lock           = __SPIN_LOCK_UNLOCKED(root_key_user.lock),
         .nkeys          = ATOMIC_INIT(2),
         .nikeys         = ATOMIC_INIT(2),
-        .uid            = 0,
-        .user_ns        = &init_user_ns,
+        .uid            = GLOBAL_ROOT_UID,
 };
 
 /*
@@ -48,11 +47,13 @@ int install_user_keyrings(void)
         struct key *uid_keyring, *session_keyring;
         char buf[20];
         int ret;
+        uid_t uid;
 
         cred = current_cred();
         user = cred->user;
+        uid = from_kuid(cred->user_ns, user->uid);
 
-        kenter("%p{%u}", user, user->uid);
+        kenter("%p{%u}", user, uid);
 
         if (user->uid_keyring) {
                 kleave(" = 0 [exist]");
@@ -67,11 +68,11 @@ int install_user_keyrings(void)
                  * - there may be one in existence already as it may have been
                  *   pinned by a session, but the user_struct pointing to it
                  *   may have been destroyed by setuid */
-                sprintf(buf, "_uid.%u", user->uid);
+                sprintf(buf, "_uid.%u", uid);
 
                 uid_keyring = find_keyring_by_name(buf, true);
                 if (IS_ERR(uid_keyring)) {
-                        uid_keyring = keyring_alloc(buf, user->uid, (gid_t) -1,
+                        uid_keyring = keyring_alloc(buf, user->uid, INVALID_GID,
                                                     cred, KEY_ALLOC_IN_QUOTA,
                                                     NULL);
                         if (IS_ERR(uid_keyring)) {
@@ -82,12 +83,12 @@ int install_user_keyrings(void)
 
                 /* get a default session keyring (which might also exist
                  * already) */
-                sprintf(buf, "_uid_ses.%u", user->uid);
+                sprintf(buf, "_uid_ses.%u", uid);
 
                 session_keyring = find_keyring_by_name(buf, true);
                 if (IS_ERR(session_keyring)) {
                         session_keyring =
-                                keyring_alloc(buf, user->uid, (gid_t) -1,
+                                keyring_alloc(buf, user->uid, INVALID_GID,
                                               cred, KEY_ALLOC_IN_QUOTA, NULL);
                         if (IS_ERR(session_keyring)) {
                                 ret = PTR_ERR(session_keyring);
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 000e75017520..66e21184b559 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -139,8 +139,8 @@ static int call_sbin_request_key(struct key_construction *cons,
                 goto error_link;
 
         /* record the UID and GID */
-        sprintf(uid_str, "%d", cred->fsuid);
-        sprintf(gid_str, "%d", cred->fsgid);
+        sprintf(uid_str, "%d", from_kuid(&init_user_ns, cred->fsuid));
+        sprintf(gid_str, "%d", from_kgid(&init_user_ns, cred->fsgid));
 
         /* we say which key is under construction */
         sprintf(key_str, "%d", key->serial);
@@ -442,7 +442,7 @@ static struct key *construct_key_and_link(struct key_type *type,
 
         kenter("");
 
-        user = key_user_lookup(current_fsuid(), current_user_ns());
+        user = key_user_lookup(current_fsuid());
         if (!user)
                 return ERR_PTR(-ENOMEM);