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-rw-r--r--security/capability.c5
-rw-r--r--security/commoncap.c21
-rw-r--r--security/keys/request_key.c1
-rw-r--r--security/security.c4
-rw-r--r--security/selinux/hooks.c6
-rw-r--r--security/smack/smack_lsm.c8
6 files changed, 10 insertions, 35 deletions
diff --git a/security/capability.c b/security/capability.c
index 30ae00fbecd5..c773635ca3a0 100644
--- a/security/capability.c
+++ b/security/capability.c
@@ -17,6 +17,11 @@ static int cap_sysctl(ctl_table *table, int op)
return 0;
}
+static int cap_syslog(int type)
+{
+ return 0;
+}
+
static int cap_quotactl(int cmds, int type, int id, struct super_block *sb)
{
return 0;
diff --git a/security/commoncap.c b/security/commoncap.c
index 04b80f9912bf..64c2ed9c9015 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -27,7 +27,6 @@
#include <linux/sched.h>
#include <linux/prctl.h>
#include <linux/securebits.h>
-#include <linux/syslog.h>
/*
* If a non-root user executes a setuid-root binary in
@@ -884,26 +883,6 @@ error:
}
/**
- * cap_syslog - Determine whether syslog function is permitted
- * @type: Function requested
- * @from_file: Whether this request came from an open file (i.e. /proc)
- *
- * Determine whether the current process is permitted to use a particular
- * syslog function, returning 0 if permission is granted, -ve if not.
- */
-int cap_syslog(int type, bool from_file)
-{
- if (type != SYSLOG_ACTION_OPEN && from_file)
- return 0;
- if (dmesg_restrict && !capable(CAP_SYS_ADMIN))
- return -EPERM;
- if ((type != SYSLOG_ACTION_READ_ALL &&
- type != SYSLOG_ACTION_SIZE_BUFFER) && !capable(CAP_SYS_ADMIN))
- return -EPERM;
- return 0;
-}
-
-/**
* cap_vm_enough_memory - Determine whether a new virtual mapping is permitted
* @mm: The VM space in which the new mapping is to be made
* @pages: The size of the mapping
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 0088dd8bf68a..0ea52d25a6bd 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -403,7 +403,6 @@ link_check_failed:
return ret;
link_prealloc_failed:
- up_write(&dest_keyring->sem);
mutex_unlock(&user->cons_lock);
kleave(" = %d [prelink]", ret);
return ret;
diff --git a/security/security.c b/security/security.c
index 3ef5e2a7a741..1b798d3df710 100644
--- a/security/security.c
+++ b/security/security.c
@@ -197,9 +197,9 @@ int security_quota_on(struct dentry *dentry)
return security_ops->quota_on(dentry);
}
-int security_syslog(int type, bool from_file)
+int security_syslog(int type)
{
- return security_ops->syslog(type, from_file);
+ return security_ops->syslog(type);
}
int security_settime(struct timespec *ts, struct timezone *tz)
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 156ef93d6f7d..c82538a4b1a4 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -1973,14 +1973,10 @@ static int selinux_quota_on(struct dentry *dentry)
return dentry_has_perm(cred, NULL, dentry, FILE__QUOTAON);
}
-static int selinux_syslog(int type, bool from_file)
+static int selinux_syslog(int type)
{
int rc;
- rc = cap_syslog(type, from_file);
- if (rc)
- return rc;
-
switch (type) {
case SYSLOG_ACTION_READ_ALL: /* Read last kernel messages */
case SYSLOG_ACTION_SIZE_BUFFER: /* Return size of the log buffer */
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index bc39f4067af6..489a85afa477 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -157,15 +157,11 @@ static int smack_ptrace_traceme(struct task_struct *ptp)
*
* Returns 0 on success, error code otherwise.
*/
-static int smack_syslog(int type, bool from_file)
+static int smack_syslog(int typefrom_file)
{
- int rc;
+ int rc = 0;
char *sp = current_security();
- rc = cap_syslog(type, from_file);
- if (rc != 0)
- return rc;
-
if (capable(CAP_MAC_OVERRIDE))
return 0;