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-rw-r--r--net/ceph/ceph_common.c2
-rw-r--r--net/dns_resolver/dns_key.c12
-rw-r--r--net/dns_resolver/dns_query.c15
-rw-r--r--net/rxrpc/key.c19
-rw-r--r--net/wireless/reg.c6
5 files changed, 40 insertions, 14 deletions
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 79eac465ec65..d4af93a35e2b 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -305,7 +305,7 @@ static int get_secret(struct ceph_crypto_key *dst, const char *name) {
int err = 0;
struct ceph_crypto_key *ckey;
- ukey = request_key(&key_type_ceph, name, NULL);
+ ukey = request_key(&key_type_ceph, name, NULL, NULL);
if (IS_ERR(ukey)) {
/* request_key errors don't map nicely to mount(2)
errors; don't even try, but still printk */
diff --git a/net/dns_resolver/dns_key.c b/net/dns_resolver/dns_key.c
index 3e1a90669006..6b201531b165 100644
--- a/net/dns_resolver/dns_key.c
+++ b/net/dns_resolver/dns_key.c
@@ -46,6 +46,15 @@ const struct cred *dns_resolver_cache;
#define DNS_ERRORNO_OPTION "dnserror"
+static struct key_acl dns_keyring_acl = {
+ .usage = REFCOUNT_INIT(1),
+ .nr_ace = 2,
+ .aces = {
+ KEY_POSSESSOR_ACE(KEY_ACE_SEARCH | KEY_ACE_WRITE),
+ KEY_OWNER_ACE(KEY_ACE_VIEW | KEY_ACE_READ | KEY_ACE_CLEAR),
+ }
+};
+
/*
* Preparse instantiation data for a dns_resolver key.
*
@@ -343,8 +352,7 @@ static int __init init_dns_resolver(void)
keyring = keyring_alloc(".dns_resolver",
GLOBAL_ROOT_UID, GLOBAL_ROOT_GID, cred,
- (KEY_POS_ALL & ~KEY_POS_SETATTR) |
- KEY_USR_VIEW | KEY_USR_READ,
+ &dns_keyring_acl,
KEY_ALLOC_NOT_IN_QUOTA, NULL, NULL);
if (IS_ERR(keyring)) {
ret = PTR_ERR(keyring);
diff --git a/net/dns_resolver/dns_query.c b/net/dns_resolver/dns_query.c
index cab4e0df924f..236baf2bfa4c 100644
--- a/net/dns_resolver/dns_query.c
+++ b/net/dns_resolver/dns_query.c
@@ -47,6 +47,16 @@
#include "internal.h"
+static struct key_acl dns_key_acl = {
+ .usage = REFCOUNT_INIT(1),
+ .nr_ace = 2,
+ .possessor_viewable = true,
+ .aces = {
+ KEY_POSSESSOR_ACE(KEY_ACE_VIEW | KEY_ACE_SEARCH | KEY_ACE_READ),
+ KEY_OWNER_ACE(KEY_ACE_VIEW | KEY_ACE_INVAL),
+ }
+};
+
/**
* dns_query - Query the DNS
* @net: The network namespace to operate in.
@@ -125,7 +135,8 @@ int dns_query(struct net *net,
* add_key() to preinstall malicious redirections
*/
saved_cred = override_creds(dns_resolver_cache);
- rkey = request_key_net(&key_type_dns_resolver, desc, net, options);
+ rkey = request_key_net(&key_type_dns_resolver, desc, net, options,
+ &dns_key_acl);
revert_creds(saved_cred);
kfree(desc);
if (IS_ERR(rkey)) {
@@ -135,8 +146,6 @@ int dns_query(struct net *net,
down_read(&rkey->sem);
set_bit(KEY_FLAG_ROOT_CAN_INVAL, &rkey->flags);
- rkey->perm |= KEY_USR_VIEW;
-
ret = key_validate(rkey);
if (ret < 0)
goto put;
diff --git a/net/rxrpc/key.c b/net/rxrpc/key.c
index 1cc6b0c6cc42..207d621d18c0 100644
--- a/net/rxrpc/key.c
+++ b/net/rxrpc/key.c
@@ -27,6 +27,14 @@
#include <keys/user-type.h>
#include "ar-internal.h"
+static struct key_acl rxrpc_null_key_acl = {
+ .usage = REFCOUNT_INIT(1),
+ .nr_ace = 1,
+ .aces = {
+ KEY_POSSESSOR_ACE(KEY_ACE_SEARCH | KEY_ACE_READ),
+ }
+};
+
static int rxrpc_vet_description_s(const char *);
static int rxrpc_preparse(struct key_preparsed_payload *);
static int rxrpc_preparse_s(struct key_preparsed_payload *);
@@ -914,7 +922,8 @@ int rxrpc_request_key(struct rxrpc_sock *rx, char __user *optval, int optlen)
if (IS_ERR(description))
return PTR_ERR(description);
- key = request_key_net(&key_type_rxrpc, description, sock_net(&rx->sk), NULL);
+ key = request_key_net(&key_type_rxrpc, description, sock_net(&rx->sk),
+ NULL, NULL);
if (IS_ERR(key)) {
kfree(description);
_leave(" = %ld", PTR_ERR(key));
@@ -945,7 +954,8 @@ int rxrpc_server_keyring(struct rxrpc_sock *rx, char __user *optval,
if (IS_ERR(description))
return PTR_ERR(description);
- key = request_key_net(&key_type_keyring, description, sock_net(&rx->sk), NULL);
+ key = request_key_net(&key_type_keyring, description, sock_net(&rx->sk),
+ NULL, NULL);
if (IS_ERR(key)) {
kfree(description);
_leave(" = %ld", PTR_ERR(key));
@@ -978,7 +988,8 @@ int rxrpc_get_server_data_key(struct rxrpc_connection *conn,
_enter("");
key = key_alloc(&key_type_rxrpc, "x",
- GLOBAL_ROOT_UID, GLOBAL_ROOT_GID, cred, 0,
+ GLOBAL_ROOT_UID, GLOBAL_ROOT_GID, cred,
+ &internal_key_acl,
KEY_ALLOC_NOT_IN_QUOTA, NULL);
if (IS_ERR(key)) {
_leave(" = -ENOMEM [alloc %ld]", PTR_ERR(key));
@@ -1026,7 +1037,7 @@ struct key *rxrpc_get_null_key(const char *keyname)
key = key_alloc(&key_type_rxrpc, keyname,
GLOBAL_ROOT_UID, GLOBAL_ROOT_GID, cred,
- KEY_POS_SEARCH, KEY_ALLOC_NOT_IN_QUOTA, NULL);
+ &rxrpc_null_key_acl, KEY_ALLOC_NOT_IN_QUOTA, NULL);
if (IS_ERR(key))
return key;
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 4831ad745f91..298fe91557f7 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -741,8 +741,7 @@ static void __init load_keys_from_buffer(const u8 *p, unsigned int buflen)
key = key_create_or_update(make_key_ref(builtin_regdb_keys, 1),
"asymmetric", NULL, p, plen,
- ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
- KEY_USR_VIEW | KEY_USR_READ),
+ &internal_key_acl,
KEY_ALLOC_NOT_IN_QUOTA |
KEY_ALLOC_BUILT_IN |
KEY_ALLOC_BYPASS_RESTRICTION);
@@ -768,8 +767,7 @@ static int __init load_builtin_regdb_keys(void)
builtin_regdb_keys =
keyring_alloc(".builtin_regdb_keys",
KUIDT_INIT(0), KGIDT_INIT(0), current_cred(),
- ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
- KEY_USR_VIEW | KEY_USR_READ | KEY_USR_SEARCH),
+ &internal_keyring_acl,
KEY_ALLOC_NOT_IN_QUOTA, NULL, NULL);
if (IS_ERR(builtin_regdb_keys))
return PTR_ERR(builtin_regdb_keys);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.