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authorMark Brown <broonie@kernel.org>2015-08-21 15:26:37 -0700
committerMark Brown <broonie@kernel.org>2015-08-21 15:26:37 -0700
commitd033de5ceee8333e4fee3d59a956244d3736102a (patch)
tree5bdebcac18ed67890571632570c324e0c41a7223 /security
parent1a8e7fab70c8d7cad2e606e7b21d46e42e51c2fd (diff)
parentf7644cbfcdf03528f0f450f3940c4985b2291f49 (diff)
Merge tag 'v4.2-rc6' into asoc-topology
Linux 4.2-rc6
Diffstat (limited to 'security')
-rw-r--r--security/keys/keyring.c8
-rw-r--r--security/selinux/hooks.c3
-rw-r--r--security/selinux/ss/ebitmap.c6
-rw-r--r--security/yama/yama_lsm.c1
4 files changed, 14 insertions, 4 deletions
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index e72548b5897e..d33437007ad2 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -1181,9 +1181,11 @@ void __key_link_end(struct key *keyring,
if (index_key->type == &key_type_keyring)
up_write(&keyring_serialise_link_sem);
- if (edit && !edit->dead_leaf) {
- key_payload_reserve(keyring,
- keyring->datalen - KEYQUOTA_LINK_BYTES);
+ if (edit) {
+ if (!edit->dead_leaf) {
+ key_payload_reserve(keyring,
+ keyring->datalen - KEYQUOTA_LINK_BYTES);
+ }
assoc_array_cancel_edit(edit);
}
up_write(&keyring->sem);
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 623108199641..564079c5c49d 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -3283,7 +3283,8 @@ static int file_map_prot_check(struct file *file, unsigned long prot, int shared
int rc = 0;
if (default_noexec &&
- (prot & PROT_EXEC) && (!file || (!shared && (prot & PROT_WRITE)))) {
+ (prot & PROT_EXEC) && (!file || IS_PRIVATE(file_inode(file)) ||
+ (!shared && (prot & PROT_WRITE)))) {
/*
* We are making executable an anonymous mapping or a
* private file mapping that will also be writable.
diff --git a/security/selinux/ss/ebitmap.c b/security/selinux/ss/ebitmap.c
index afe6a269ec17..57644b1dc42e 100644
--- a/security/selinux/ss/ebitmap.c
+++ b/security/selinux/ss/ebitmap.c
@@ -153,6 +153,12 @@ int ebitmap_netlbl_import(struct ebitmap *ebmap,
if (offset == (u32)-1)
return 0;
+ /* don't waste ebitmap space if the netlabel bitmap is empty */
+ if (bitmap == 0) {
+ offset += EBITMAP_UNIT_SIZE;
+ continue;
+ }
+
if (e_iter == NULL ||
offset >= e_iter->startbit + EBITMAP_SIZE) {
e_prev = e_iter;
diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c
index 9ed32502470e..5ebb89687936 100644
--- a/security/yama/yama_lsm.c
+++ b/security/yama/yama_lsm.c
@@ -406,6 +406,7 @@ static __init int yama_init(void)
*/
if (!security_module_enable("yama"))
return 0;
+ yama_add_hooks();
#endif
pr_info("Yama: becoming mindful.\n");