summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--security/smack/smack.h1
-rw-r--r--security/smack/smack_access.c7
-rw-r--r--security/smack/smack_lsm.c29
-rw-r--r--security/smack/smackfs.c3
4 files changed, 4 insertions, 36 deletions
diff --git a/security/smack/smack.h b/security/smack/smack.h
index 51fd30192c08..77abe2efacae 100644
--- a/security/smack/smack.h
+++ b/security/smack/smack.h
@@ -336,7 +336,6 @@ extern int smack_ptrace_rule;
extern struct smack_known smack_known_floor;
extern struct smack_known smack_known_hat;
extern struct smack_known smack_known_huh;
-extern struct smack_known smack_known_invalid;
extern struct smack_known smack_known_star;
extern struct smack_known smack_known_web;
diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
index 23e5808a0970..356e3764cad9 100644
--- a/security/smack/smack_access.c
+++ b/security/smack/smack_access.c
@@ -36,11 +36,6 @@ struct smack_known smack_known_floor = {
.smk_secid = 5,
};
-struct smack_known smack_known_invalid = {
- .smk_known = "",
- .smk_secid = 6,
-};
-
struct smack_known smack_known_web = {
.smk_known = "@",
.smk_secid = 7,
@@ -615,7 +610,7 @@ struct smack_known *smack_from_secid(const u32 secid)
* of a secid that is not on the list.
*/
rcu_read_unlock();
- return &smack_known_invalid;
+ return &smack_known_huh;
}
/*
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 46d8be434466..4d90257d03ad 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1384,20 +1384,14 @@ static void smack_inode_post_setxattr(struct dentry *dentry, const char *name,
skp = smk_import_entry(value, size);
if (!IS_ERR(skp))
isp->smk_inode = skp;
- else
- isp->smk_inode = &smack_known_invalid;
} else if (strcmp(name, XATTR_NAME_SMACKEXEC) == 0) {
skp = smk_import_entry(value, size);
if (!IS_ERR(skp))
isp->smk_task = skp;
- else
- isp->smk_task = &smack_known_invalid;
} else if (strcmp(name, XATTR_NAME_SMACKMMAP) == 0) {
skp = smk_import_entry(value, size);
if (!IS_ERR(skp))
isp->smk_mmap = skp;
- else
- isp->smk_mmap = &smack_known_invalid;
}
return;
@@ -2068,12 +2062,8 @@ static void smack_cred_transfer(struct cred *new, const struct cred *old)
static int smack_kernel_act_as(struct cred *new, u32 secid)
{
struct task_smack *new_tsp = new->security;
- struct smack_known *skp = smack_from_secid(secid);
-
- if (skp == NULL)
- return -EINVAL;
- new_tsp->smk_task = skp;
+ new_tsp->smk_task = smack_from_secid(secid);
return 0;
}
@@ -3894,21 +3884,11 @@ static struct smack_known *smack_from_secattr(struct netlbl_lsm_secattr *sap,
return &smack_known_web;
return &smack_known_star;
}
- if ((sap->flags & NETLBL_SECATTR_SECID) != 0) {
+ if ((sap->flags & NETLBL_SECATTR_SECID) != 0)
/*
* Looks like a fallback, which gives us a secid.
*/
- skp = smack_from_secid(sap->attr.secid);
- /*
- * This has got to be a bug because it is
- * impossible to specify a fallback without
- * specifying the label, which will ensure
- * it has a secid, and the only way to get a
- * secid is from a fallback.
- */
- BUG_ON(skp == NULL);
- return skp;
- }
+ return smack_from_secid(sap->attr.secid);
/*
* Without guidance regarding the smack value
* for the packet fall back on the network
@@ -4771,7 +4751,6 @@ static __init void init_smack_known_list(void)
mutex_init(&smack_known_hat.smk_rules_lock);
mutex_init(&smack_known_floor.smk_rules_lock);
mutex_init(&smack_known_star.smk_rules_lock);
- mutex_init(&smack_known_invalid.smk_rules_lock);
mutex_init(&smack_known_web.smk_rules_lock);
/*
* Initialize rule lists
@@ -4780,7 +4759,6 @@ static __init void init_smack_known_list(void)
INIT_LIST_HEAD(&smack_known_hat.smk_rules);
INIT_LIST_HEAD(&smack_known_star.smk_rules);
INIT_LIST_HEAD(&smack_known_floor.smk_rules);
- INIT_LIST_HEAD(&smack_known_invalid.smk_rules);
INIT_LIST_HEAD(&smack_known_web.smk_rules);
/*
* Create the known labels list
@@ -4789,7 +4767,6 @@ static __init void init_smack_known_list(void)
smk_insert_entry(&smack_known_hat);
smk_insert_entry(&smack_known_star);
smk_insert_entry(&smack_known_floor);
- smk_insert_entry(&smack_known_invalid);
smk_insert_entry(&smack_known_web);
}
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index 6492fe96cae4..13743a01b35b 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -2998,9 +2998,6 @@ static int __init init_smk_fs(void)
rc = smk_preset_netlabel(&smack_known_huh);
if (err == 0 && rc < 0)
err = rc;
- rc = smk_preset_netlabel(&smack_known_invalid);
- if (err == 0 && rc < 0)
- err = rc;
rc = smk_preset_netlabel(&smack_known_star);
if (err == 0 && rc < 0)
err = rc;