Merge branch 'next-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity into next

18 files changed, 153 insertions, 134 deletions

diff --git a/security/integrity/evm/Kconfig b/security/integrity/evm/Kconfig
index fea9749c3756..d35b4915b00d 100644
--- a/security/integrity/evm/Kconfig
+++ b/security/integrity/evm/Kconfig
@@ -1,10 +1,10 @@
 config EVM
         boolean "EVM support"
-        depends on SECURITY && KEYS && (TRUSTED_KEYS=y || TRUSTED_KEYS=n)
+        depends on SECURITY
+        select KEYS
+        select ENCRYPTED_KEYS
         select CRYPTO_HMAC
-        select CRYPTO_MD5
         select CRYPTO_SHA1
-        select ENCRYPTED_KEYS
         default n
         help
           EVM protects a file's security extended attributes against
diff --git a/security/integrity/evm/evm.h b/security/integrity/evm/evm.h
index 30bd1ec0232e..37c88ddb3cfe 100644
--- a/security/integrity/evm/evm.h
+++ b/security/integrity/evm/evm.h
@@ -32,19 +32,19 @@ extern struct crypto_shash *hash_tfm;
 /* List of EVM protected security xattrs */
 extern char *evm_config_xattrnames[];
 
-extern int evm_init_key(void);
-extern int evm_update_evmxattr(struct dentry *dentry,
-                               const char *req_xattr_name,
-                               const char *req_xattr_value,
-                               size_t req_xattr_value_len);
-extern int evm_calc_hmac(struct dentry *dentry, const char *req_xattr_name,
-                         const char *req_xattr_value,
-                         size_t req_xattr_value_len, char *digest);
-extern int evm_calc_hash(struct dentry *dentry, const char *req_xattr_name,
-                         const char *req_xattr_value,
-                         size_t req_xattr_value_len, char *digest);
-extern int evm_init_hmac(struct inode *inode, const struct xattr *xattr,
-                         char *hmac_val);
-extern int evm_init_secfs(void);
+int evm_init_key(void);
+int evm_update_evmxattr(struct dentry *dentry,
+                        const char *req_xattr_name,
+                        const char *req_xattr_value,
+                        size_t req_xattr_value_len);
+int evm_calc_hmac(struct dentry *dentry, const char *req_xattr_name,
+                  const char *req_xattr_value,
+                  size_t req_xattr_value_len, char *digest);
+int evm_calc_hash(struct dentry *dentry, const char *req_xattr_name,
+                  const char *req_xattr_value,
+                  size_t req_xattr_value_len, char *digest);
+int evm_init_hmac(struct inode *inode, const struct xattr *xattr,
+                  char *hmac_val);
+int evm_init_secfs(void);
 
 #endif
diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c
index 3bab89eb21d6..babd8626bf96 100644
--- a/security/integrity/evm/evm_crypto.c
+++ b/security/integrity/evm/evm_crypto.c
@@ -13,6 +13,8 @@
  *       Using root's kernel master key (kmk), calculate the HMAC
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/crypto.h>
 #include <linux/xattr.h>
@@ -103,13 +105,13 @@ static void hmac_add_misc(struct shash_desc *desc, struct inode *inode,
                 umode_t mode;
         } hmac_misc;
 
-        memset(&hmac_misc, 0, sizeof hmac_misc);
+        memset(&hmac_misc, 0, sizeof(hmac_misc));
         hmac_misc.ino = inode->i_ino;
         hmac_misc.generation = inode->i_generation;
         hmac_misc.uid = from_kuid(&init_user_ns, inode->i_uid);
         hmac_misc.gid = from_kgid(&init_user_ns, inode->i_gid);
         hmac_misc.mode = inode->i_mode;
-        crypto_shash_update(desc, (const u8 *)&hmac_misc, sizeof hmac_misc);
+        crypto_shash_update(desc, (const u8 *)&hmac_misc, sizeof(hmac_misc));
         if (evm_hmac_version > 1)
                 crypto_shash_update(desc, inode->i_sb->s_uuid,
                                     sizeof(inode->i_sb->s_uuid));
@@ -221,7 +223,7 @@ int evm_init_hmac(struct inode *inode, const struct xattr *lsm_xattr,
 
         desc = init_desc(EVM_XATTR_HMAC);
         if (IS_ERR(desc)) {
-                printk(KERN_INFO "init_desc failed\n");
+                pr_info("init_desc failed\n");
                 return PTR_ERR(desc);
         }
 
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index 336b3ddfe63f..996092f21b64 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -14,6 +14,8 @@
  *      evm_inode_removexattr, and evm_verifyxattr
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/crypto.h>
 #include <linux/audit.h>
@@ -432,7 +434,7 @@ static int __init init_evm(void)
 
         error = evm_init_secfs();
         if (error < 0) {
-                printk(KERN_INFO "EVM: Error registering secfs\n");
+                pr_info("Error registering secfs\n");
                 goto err;
         }
 
@@ -449,7 +451,7 @@ static int __init evm_display_config(void)
         char **xattrname;
 
         for (xattrname = evm_config_xattrnames; *xattrname != NULL; xattrname++)
-                printk(KERN_INFO "EVM: %s\n", *xattrname);
+                pr_info("%s\n", *xattrname);
         return 0;
 }
 
diff --git a/security/integrity/evm/evm_secfs.c b/security/integrity/evm/evm_secfs.c
index 30f670ad6ac3..cf12a04717d3 100644
--- a/security/integrity/evm/evm_secfs.c
+++ b/security/integrity/evm/evm_secfs.c
@@ -13,6 +13,8 @@
  *      - Get the key and enable EVM
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/uaccess.h>
 #include <linux/module.h>
 #include "evm.h"
@@ -79,9 +81,9 @@ static ssize_t evm_write_key(struct file *file, const char __user *buf,
         error = evm_init_key();
         if (!error) {
                 evm_initialized = 1;
-                pr_info("EVM: initialized\n");
+                pr_info("initialized\n");
         } else
-                pr_err("EVM: initialization failed\n");
+                pr_err("initialization failed\n");
         return count;
 }
 
diff --git a/security/integrity/iint.c b/security/integrity/iint.c
index c49d3f14cbec..a521edf4cbd6 100644
--- a/security/integrity/iint.c
+++ b/security/integrity/iint.c
@@ -151,7 +151,7 @@ static void init_once(void *foo)
 {
         struct integrity_iint_cache *iint = foo;
 
-        memset(iint, 0, sizeof *iint);
+        memset(iint, 0, sizeof(*iint));
         iint->version = 0;
         iint->flags = 0UL;
         iint->ima_file_status = INTEGRITY_UNKNOWN;
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index 0356e1d437ca..f79fa8be203c 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -27,7 +27,7 @@
 #include "../integrity.h"
 
 enum ima_show_type { IMA_SHOW_BINARY, IMA_SHOW_BINARY_NO_FIELD_LEN,
-                     IMA_SHOW_ASCII };
+                     IMA_SHOW_BINARY_OLD_STRING_FMT, IMA_SHOW_ASCII };
 enum tpm_pcrs { TPM_PCR0 = 0, TPM_PCR8 = 8 };
 
 /* digest size for IMA, fits SHA1 or MD5 */
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index c38bbce8c6a6..ba9e4d792dd5 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -92,8 +92,8 @@ int ima_store_template(struct ima_template_entry *entry,
                        int violation, struct inode *inode,
                        const unsigned char *filename)
 {
-        const char *op = "add_template_measure";
-        const char *audit_cause = "hashing_error";
+        static const char op[] = "add_template_measure";
+        static const char audit_cause[] = "hashing_error";
         char *template_name = entry->template_desc->name;
         int result;
         struct {
@@ -132,7 +132,7 @@ void ima_add_violation(struct file *file, const unsigned char *filename,
                        const char *op, const char *cause)
 {
         struct ima_template_entry *entry;
-        struct inode *inode = file->f_dentry->d_inode;
+        struct inode *inode = file_inode(file);
         int violation = 1;
         int result;
 
@@ -160,10 +160,10 @@ err_out:
  * @function: calling function (FILE_CHECK, BPRM_CHECK, MMAP_CHECK, MODULE_CHECK)
  *
  * The policy is defined in terms of keypairs:
- *              subj=, obj=, type=, func=, mask=, fsmagic=
+ *              subj=, obj=, type=, func=, mask=, fsmagic=
  *      subj,obj, and type: are LSM specific.
- *      func: FILE_CHECK | BPRM_CHECK | MMAP_CHECK | MODULE_CHECK
- *      mask: contains the permission mask
+ *      func: FILE_CHECK | BPRM_CHECK | MMAP_CHECK | MODULE_CHECK
+ *      mask: contains the permission mask
  *      fsmagic: hex value
  *
  * Returns IMA_MEASURE, IMA_APPRAISE mask.
@@ -248,7 +248,7 @@ int ima_collect_measurement(struct integrity_iint_cache *iint,
  *
  * We only get here if the inode has not already been measured,
  * but the measurement could already exist:
- *      - multiple copies of the same file on either the same or
+ *      - multiple copies of the same file on either the same or
  *        different filesystems.
  *      - the inode was previously flushed as well as the iint info,
  *        containing the hashing info.
@@ -260,8 +260,8 @@ void ima_store_measurement(struct integrity_iint_cache *iint,
                            struct evm_ima_xattr_data *xattr_value,
                            int xattr_len)
 {
-        const char *op = "add_template_measure";
-        const char *audit_cause = "ENOMEM";
+        static const char op[] = "add_template_measure";
+        static const char audit_cause[] = "ENOMEM";
         int result = -ENOMEM;
         struct inode *inode = file_inode(file);
         struct ima_template_entry *entry;
@@ -332,5 +332,5 @@ const char *ima_d_path(struct path *path, char **pathbuf)
                         pathname = NULL;
                 }
         }
-        return pathname;
+        return pathname ?: (const char *)path->dentry->d_name.name;
 }
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 734e9468aca0..291bf0f3a46d 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -177,11 +177,11 @@ int ima_appraise_measurement(int func, struct integrity_iint_cache *iint,
                              struct evm_ima_xattr_data *xattr_value,
                              int xattr_len)
 {
+        static const char op[] = "appraise_data";
+        char *cause = "unknown";
         struct dentry *dentry = file->f_dentry;
         struct inode *inode = dentry->d_inode;
         enum integrity_status status = INTEGRITY_UNKNOWN;
-        const char *op = "appraise_data";
-        char *cause = "unknown";
         int rc = xattr_len, hash_start = 0;
 
         if (!ima_appraise)
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index fdf60def52e9..1bde8e627766 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -10,9 +10,11 @@
  * the Free Software Foundation, version 2 of the License.
  *
  * File: ima_crypto.c
- *      Calculates md5/sha1 file hash, template hash, boot-aggreate hash
+ *      Calculates md5/sha1 file hash, template hash, boot-aggreate hash
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/file.h>
 #include <linux/crypto.h>
@@ -85,16 +87,20 @@ static int ima_calc_file_hash_tfm(struct file *file,
         if (rc != 0)
                 return rc;
 
-        rbuf = kzalloc(PAGE_SIZE, GFP_KERNEL);
-        if (!rbuf) {
-                rc = -ENOMEM;
+        i_size = i_size_read(file_inode(file));
+
+        if (i_size == 0)
                 goto out;
-        }
+
+        rbuf = kzalloc(PAGE_SIZE, GFP_KERNEL);
+        if (!rbuf)
+                return -ENOMEM;
+
         if (!(file->f_mode & FMODE_READ)) {
                 file->f_mode |= FMODE_READ;
                 read = 1;
         }
-        i_size = i_size_read(file_inode(file));
+
         while (offset < i_size) {
                 int rbuf_len;
 
@@ -111,12 +117,12 @@ static int ima_calc_file_hash_tfm(struct file *file,
                 if (rc)
                         break;
         }
-        kfree(rbuf);
-        if (!rc)
-                rc = crypto_shash_final(&desc.shash, hash->digest);
         if (read)
                 file->f_mode &= ~FMODE_READ;
+        kfree(rbuf);
 out:
+        if (!rc)
+                rc = crypto_shash_final(&desc.shash, hash->digest);
         return rc;
 }
 
@@ -161,15 +167,22 @@ static int ima_calc_field_array_hash_tfm(struct ima_field_data *field_data,
                 return rc;
 
         for (i = 0; i < num_fields; i++) {
+                u8 buffer[IMA_EVENT_NAME_LEN_MAX + 1] = { 0 };
+                u8 *data_to_hash = field_data[i].data;
+                u32 datalen = field_data[i].len;
+
                 if (strcmp(td->name, IMA_TEMPLATE_IMA_NAME) != 0) {
                         rc = crypto_shash_update(&desc.shash,
                                                 (const u8 *) &field_data[i].len,
                                                 sizeof(field_data[i].len));
                         if (rc)
                                 break;
+                } else if (strcmp(td->fields[i]->field_id, "n") == 0) {
+                        memcpy(buffer, data_to_hash, datalen);
+                        data_to_hash = buffer;
+                        datalen = IMA_EVENT_NAME_LEN_MAX + 1;
                 }
-                rc = crypto_shash_update(&desc.shash, field_data[i].data,
-                                         field_data[i].len);
+                rc = crypto_shash_update(&desc.shash, data_to_hash, datalen);
                 if (rc)
                         break;
         }
@@ -205,7 +218,7 @@ static void __init ima_pcrread(int idx, u8 *pcr)
                 return;
 
         if (tpm_pcr_read(TPM_ANY_NUM, idx, pcr) != 0)
-                pr_err("IMA: Error Communicating to TPM chip\n");
+                pr_err("Error Communicating to TPM chip\n");
 }
 
 /*
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index db01125926bd..da92fcc08d15 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -133,14 +133,14 @@ static int ima_measurements_show(struct seq_file *m, void *v)
          * PCR used is always the same (config option) in
          * little-endian format
          */
-        ima_putc(m, &pcr, sizeof pcr);
+        ima_putc(m, &pcr, sizeof(pcr));
 
         /* 2nd: template digest */
         ima_putc(m, e->digest, TPM_DIGEST_SIZE);
 
         /* 3rd: template name size */
         namelen = strlen(e->template_desc->name);
-        ima_putc(m, &namelen, sizeof namelen);
+        ima_putc(m, &namelen, sizeof(namelen));
 
         /* 4th:  template name */
         ima_putc(m, e->template_desc->name, namelen);
@@ -160,6 +160,8 @@ static int ima_measurements_show(struct seq_file *m, void *v)
 
                 if (is_ima_template && strcmp(field->field_id, "d") == 0)
                         show = IMA_SHOW_BINARY_NO_FIELD_LEN;
+                if (is_ima_template && strcmp(field->field_id, "n") == 0)
+                        show = IMA_SHOW_BINARY_OLD_STRING_FMT;
                 field->field_show(m, show, &e->template_data[i]);
         }
         return 0;
@@ -290,7 +292,7 @@ static atomic_t policy_opencount = ATOMIC_INIT(1);
 /*
  * ima_open_policy: sequentialize access to the policy file
  */
-static int ima_open_policy(struct inode * inode, struct file * filp)
+static int ima_open_policy(struct inode *inode, struct file *filp)
 {
         /* No point in being allowed to open it if you aren't going to write */
         if (!(filp->f_flags & O_WRONLY))
diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index 37122768554a..e8f9d70a465d 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -14,6 +14,9 @@
  * File: ima_init.c
  *             initialization and cleanup functions
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
@@ -42,10 +45,10 @@ int ima_used_chip;
  */
 static void __init ima_add_boot_aggregate(void)
 {
+        static const char op[] = "add_boot_aggregate";
+        const char *audit_cause = "ENOMEM";
         struct ima_template_entry *entry;
         struct integrity_iint_cache tmp_iint, *iint = &tmp_iint;
-        const char *op = "add_boot_aggregate";
-        const char *audit_cause = "ENOMEM";
         int result = -ENOMEM;
         int violation = 0;
         struct {
@@ -93,7 +96,7 @@ int __init ima_init(void)
                 ima_used_chip = 1;
 
         if (!ima_used_chip)
-                pr_info("IMA: No TPM chip found, activating TPM-bypass!\n");
+                pr_info("No TPM chip found, activating TPM-bypass!\n");
 
         rc = ima_init_crypto();
         if (rc)
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 149ee1119f87..52ac6cf41f88 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -71,15 +71,14 @@ __setup("ima_hash=", hash_setup);
  * ima_rdwr_violation_check
  *
  * Only invalidate the PCR for measured files:
- *      - Opening a file for write when already open for read,
+ *      - Opening a file for write when already open for read,
  *        results in a time of measure, time of use (ToMToU) error.
  *      - Opening a file for read when already open for write,
- *        could result in a file measurement error.
+ *        could result in a file measurement error.
  *
  */
 static void ima_rdwr_violation_check(struct file *file)
 {
-        struct dentry *dentry = file->f_path.dentry;
         struct inode *inode = file_inode(file);
         fmode_t mode = file->f_mode;
         int must_measure;
@@ -111,8 +110,6 @@ out:
                 return;
 
         pathname = ima_d_path(&file->f_path, &pathbuf);
-        if (!pathname || strlen(pathname) > IMA_EVENT_NAME_LEN_MAX)
-                pathname = dentry->d_name.name;
 
         if (send_tomtou)
                 ima_add_violation(file, pathname, "invalid_pcr", "ToMToU");
@@ -220,9 +217,7 @@ static int process_measurement(struct file *file, const char *filename,
         if (rc != 0)
                 goto out_digsig;
 
-        pathname = !filename ? ima_d_path(&file->f_path, &pathbuf) : filename;
-        if (!pathname)
-                pathname = (const char *)file->f_dentry->d_name.name;
+        pathname = filename ?: ima_d_path(&file->f_path, &pathbuf);
 
         if (action & IMA_MEASURE)
                 ima_store_measurement(iint, file, pathname,
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index 354b125c6c9f..93873a450ff7 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -7,7 +7,7 @@
  * the Free Software Foundation, version 2 of the License.
  *
  * ima_policy.c
- *      - initialize default measure policy rules
+ *      - initialize default measure policy rules
  *
  */
 #include <linux/module.h>
@@ -21,8 +21,8 @@
 #include "ima.h"
 
 /* flags definitions */
-#define IMA_FUNC        0x0001
-#define IMA_MASK        0x0002
+#define IMA_FUNC        0x0001
+#define IMA_MASK        0x0002
 #define IMA_FSMAGIC     0x0004
 #define IMA_UID         0x0008
 #define IMA_FOWNER      0x0010
@@ -69,35 +69,35 @@ struct ima_rule_entry {
  * and running executables.
  */
 static struct ima_rule_entry default_rules[] = {
-        {.action = DONT_MEASURE,.fsmagic = PROC_SUPER_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_MEASURE,.fsmagic = SYSFS_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_MEASURE,.fsmagic = DEBUGFS_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_MEASURE,.fsmagic = TMPFS_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_MEASURE,.fsmagic = DEVPTS_SUPER_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_MEASURE,.fsmagic = BINFMTFS_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_MEASURE,.fsmagic = SECURITYFS_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_MEASURE,.fsmagic = SELINUX_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = MEASURE,.func = MMAP_CHECK,.mask = MAY_EXEC,
+        {.action = DONT_MEASURE, .fsmagic = PROC_SUPER_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_MEASURE, .fsmagic = SYSFS_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_MEASURE, .fsmagic = DEBUGFS_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_MEASURE, .fsmagic = TMPFS_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_MEASURE, .fsmagic = DEVPTS_SUPER_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_MEASURE, .fsmagic = BINFMTFS_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_MEASURE, .fsmagic = SECURITYFS_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_MEASURE, .fsmagic = SELINUX_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = MEASURE, .func = MMAP_CHECK, .mask = MAY_EXEC,
          .flags = IMA_FUNC | IMA_MASK},
-        {.action = MEASURE,.func = BPRM_CHECK,.mask = MAY_EXEC,
+        {.action = MEASURE, .func = BPRM_CHECK, .mask = MAY_EXEC,
          .flags = IMA_FUNC | IMA_MASK},
-        {.action = MEASURE,.func = FILE_CHECK,.mask = MAY_READ,.uid = GLOBAL_ROOT_UID,
+        {.action = MEASURE, .func = FILE_CHECK, .mask = MAY_READ, .uid = GLOBAL_ROOT_UID,
          .flags = IMA_FUNC | IMA_MASK | IMA_UID},
-        {.action = MEASURE,.func = MODULE_CHECK, .flags = IMA_FUNC},
+        {.action = MEASURE, .func = MODULE_CHECK, .flags = IMA_FUNC},
 };
 
 static struct ima_rule_entry default_appraise_rules[] = {
-        {.action = DONT_APPRAISE,.fsmagic = PROC_SUPER_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_APPRAISE,.fsmagic = SYSFS_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_APPRAISE,.fsmagic = DEBUGFS_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_APPRAISE,.fsmagic = TMPFS_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_APPRAISE,.fsmagic = RAMFS_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_APPRAISE,.fsmagic = DEVPTS_SUPER_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_APPRAISE,.fsmagic = BINFMTFS_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_APPRAISE,.fsmagic = SECURITYFS_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_APPRAISE,.fsmagic = SELINUX_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = DONT_APPRAISE,.fsmagic = CGROUP_SUPER_MAGIC,.flags = IMA_FSMAGIC},
-        {.action = APPRAISE,.fowner = GLOBAL_ROOT_UID,.flags = IMA_FOWNER},
+        {.action = DONT_APPRAISE, .fsmagic = PROC_SUPER_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_APPRAISE, .fsmagic = SYSFS_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_APPRAISE, .fsmagic = DEBUGFS_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_APPRAISE, .fsmagic = TMPFS_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_APPRAISE, .fsmagic = RAMFS_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_APPRAISE, .fsmagic = DEVPTS_SUPER_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_APPRAISE, .fsmagic = BINFMTFS_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_APPRAISE, .fsmagic = SECURITYFS_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_APPRAISE, .fsmagic = SELINUX_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = DONT_APPRAISE, .fsmagic = CGROUP_SUPER_MAGIC, .flags = IMA_FSMAGIC},
+        {.action = APPRAISE, .fowner = GLOBAL_ROOT_UID, .flags = IMA_FOWNER},
 };
 
 static LIST_HEAD(ima_default_rules);
@@ -122,12 +122,12 @@ static int __init default_appraise_policy_setup(char *str)
 }
 __setup("ima_appraise_tcb", default_appraise_policy_setup);
 
-/* 
+/*
  * Although the IMA policy does not change, the LSM policy can be
  * reloaded, leaving the IMA LSM based rules referring to the old,
  * stale LSM policy.
  *
- * Update the IMA LSM based rules to reflect the reloaded LSM policy. 
+ * Update the IMA LSM based rules to reflect the reloaded LSM policy.
  * We assume the rules still exist; and BUG_ON() if they don't.
  */
 static void ima_lsm_update_rules(void)
@@ -167,9 +167,11 @@ static bool ima_match_rules(struct ima_rule_entry *rule,
         const struct cred *cred = current_cred();
         int i;
 
-        if ((rule->flags & IMA_FUNC) && rule->func != func)
+        if ((rule->flags & IMA_FUNC) &&
+            (rule->func != func && func != POST_SETATTR))
                 return false;
-        if ((rule->flags & IMA_MASK) && rule->mask != mask)
+        if ((rule->flags & IMA_MASK) &&
+            (rule->mask != mask && func != POST_SETATTR))
                 return false;
         if ((rule->flags & IMA_FSMAGIC)
             && rule->fsmagic != inode->i_sb->s_magic)
@@ -216,7 +218,7 @@ retry:
                         retried = 1;
                         ima_lsm_update_rules();
                         goto retry;
-                } 
+                }
                 if (!rc)
                         return false;
         }
@@ -232,7 +234,7 @@ static int get_subaction(struct ima_rule_entry *rule, int func)
         if (!(rule->flags & IMA_FUNC))
                 return IMA_FILE_APPRAISE;
 
-        switch(func) {
+        switch (func) {
         case MMAP_CHECK:
                 return IMA_MMAP_APPRAISE;
         case BPRM_CHECK:
@@ -304,7 +306,7 @@ void __init ima_init_policy(void)
         measure_entries = ima_use_tcb ? ARRAY_SIZE(default_rules) : 0;
         appraise_entries = ima_use_appraise_tcb ?
                          ARRAY_SIZE(default_appraise_rules) : 0;
-        
+
         for (i = 0; i < measure_entries + appraise_entries; i++) {
                 if (i < measure_entries)
                         list_add_tail(&default_rules[i].list,
@@ -329,7 +331,7 @@ void __init ima_init_policy(void)
  */
 void ima_update_policy(void)
 {
-        const char *op = "policy_update";
+        static const char op[] = "policy_update";
         const char *cause = "already exists";
         int result = 1;
         int audit_info = 0;
@@ -520,8 +522,7 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry)
                                 break;
                         }
 
-                        result = kstrtoul(args[0].from, 16,
-                                                &entry->fsmagic);
+                        result = kstrtoul(args[0].from, 16, &entry->fsmagic);
                         if (!result)
                                 entry->flags |= IMA_FSMAGIC;
                         break;
@@ -645,7 +646,7 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry)
  */
 ssize_t ima_parse_add_rule(char *rule)
 {
-        const char *op = "update_policy";
+        static const char op[] = "update_policy";
         char *p;
         struct ima_rule_entry *entry;
         ssize_t result, len;
diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c
index d85e99761f4f..552705d5a78d 100644
--- a/security/integrity/ima/ima_queue.c
+++ b/security/integrity/ima/ima_queue.c
@@ -18,6 +18,9 @@
  *       The measurement list is append-only. No entry is
  *       ever removed or changed during the boot-cycle.
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/rculist.h>
 #include <linux/slab.h>
@@ -72,7 +75,7 @@ static int ima_add_digest_entry(struct ima_template_entry *entry)
 
         qe = kmalloc(sizeof(*qe), GFP_KERNEL);
         if (qe == NULL) {
-                pr_err("IMA: OUT OF MEMORY ERROR creating queue entry.\n");
+                pr_err("OUT OF MEMORY ERROR creating queue entry\n");
                 return -ENOMEM;
         }
         qe->entry = entry;
@@ -95,8 +98,7 @@ static int ima_pcr_extend(const u8 *hash)
 
         result = tpm_pcr_extend(TPM_ANY_NUM, CONFIG_IMA_MEASURE_PCR_IDX, hash);
         if (result != 0)
-                pr_err("IMA: Error Communicating to TPM chip, result: %d\n",
-                       result);
+                pr_err("Error Communicating to TPM chip, result: %d\n", result);
         return result;
 }
 
@@ -115,7 +117,7 @@ int ima_add_template_entry(struct ima_template_entry *entry, int violation,
 
         mutex_lock(&ima_extend_list_mutex);
         if (!violation) {
-                memcpy(digest, entry->digest, sizeof digest);
+                memcpy(digest, entry->digest, sizeof(digest));
                 if (ima_lookup_digest_entry(digest)) {
                         audit_cause = "hash_exists";
                         result = -EEXIST;
@@ -131,7 +133,7 @@ int ima_add_template_entry(struct ima_template_entry *entry, int violation,
         }
 
         if (violation)          /* invalidate pcr */
-                memset(digest, 0xff, sizeof digest);
+                memset(digest, 0xff, sizeof(digest));
 
         tpmresult = ima_pcr_extend(digest);
         if (tpmresult != 0) {
diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
index 635695f6a185..a076a967ec47 100644
--- a/security/integrity/ima/ima_template.c
+++ b/security/integrity/ima/ima_template.c
@@ -12,6 +12,9 @@
  * File: ima_template.c
  *      Helpers to manage template descriptors.
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <crypto/hash_info.h>
 
 #include "ima.h"
@@ -19,20 +22,20 @@
 
 static struct ima_template_desc defined_templates[] = {
         {.name = IMA_TEMPLATE_IMA_NAME, .fmt = IMA_TEMPLATE_IMA_FMT},
-        {.name = "ima-ng",.fmt = "d-ng|n-ng"},
-        {.name = "ima-sig",.fmt = "d-ng|n-ng|sig"},
+        {.name = "ima-ng", .fmt = "d-ng|n-ng"},
+        {.name = "ima-sig", .fmt = "d-ng|n-ng|sig"},
 };
 
 static struct ima_template_field supported_fields[] = {
-        {.field_id = "d",.field_init = ima_eventdigest_init,
+        {.field_id = "d", .field_init = ima_eventdigest_init,
          .field_show = ima_show_template_digest},
-        {.field_id = "n",.field_init = ima_eventname_init,
+        {.field_id = "n", .field_init = ima_eventname_init,
          .field_show = ima_show_template_string},
-        {.field_id = "d-ng",.field_init = ima_eventdigest_ng_init,
+        {.field_id = "d-ng", .field_init = ima_eventdigest_ng_init,
          .field_show = ima_show_template_digest_ng},
-        {.field_id = "n-ng",.field_init = ima_eventname_ng_init,
+        {.field_id = "n-ng", .field_init = ima_eventname_ng_init,
          .field_show = ima_show_template_string},
-        {.field_id = "sig",.field_init = ima_eventsig_init,
+        {.field_id = "sig", .field_init = ima_eventsig_init,
          .field_show = ima_show_template_sig},
 };
 
@@ -58,7 +61,7 @@ static int __init ima_template_setup(char *str)
          */
         if (template_len == 3 && strcmp(str, IMA_TEMPLATE_IMA_NAME) == 0 &&
             ima_hash_algo != HASH_ALGO_SHA1 && ima_hash_algo != HASH_ALGO_MD5) {
-                pr_err("IMA: template does not support hash alg\n");
+                pr_err("template does not support hash alg\n");
                 return 1;
         }
 
diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c
index 1683bbf289a4..1506f0248572 100644
--- a/security/integrity/ima/ima_template_lib.c
+++ b/security/integrity/ima/ima_template_lib.c
@@ -27,7 +27,6 @@ static bool ima_template_hash_algo_allowed(u8 algo)
 enum data_formats {
         DATA_FMT_DIGEST = 0,
         DATA_FMT_DIGEST_WITH_ALGO,
-        DATA_FMT_EVENT_NAME,
         DATA_FMT_STRING,
         DATA_FMT_HEX
 };
@@ -37,18 +36,10 @@ static int ima_write_template_field_data(const void *data, const u32 datalen,
                                          struct ima_field_data *field_data)
 {
         u8 *buf, *buf_ptr;
-        u32 buflen;
+        u32 buflen = datalen;
 
-        switch (datafmt) {
-        case DATA_FMT_EVENT_NAME:
-                buflen = IMA_EVENT_NAME_LEN_MAX + 1;
-                break;
-        case DATA_FMT_STRING:
+        if (datafmt == DATA_FMT_STRING)
                 buflen = datalen + 1;
-                break;
-        default:
-                buflen = datalen;
-        }
 
         buf = kzalloc(buflen, GFP_KERNEL);
         if (!buf)
@@ -63,7 +54,7 @@ static int ima_write_template_field_data(const void *data, const u32 datalen,
          * split into multiple template fields (the space is the delimitator
          * character for measurements lists in ASCII format).
          */
-        if (datafmt == DATA_FMT_EVENT_NAME || datafmt == DATA_FMT_STRING) {
+        if (datafmt == DATA_FMT_STRING) {
                 for (buf_ptr = buf; buf_ptr - buf < datalen; buf_ptr++)
                         if (*buf_ptr == ' ')
                                 *buf_ptr = '_';
@@ -109,13 +100,16 @@ static void ima_show_template_data_binary(struct seq_file *m,
                                           enum data_formats datafmt,
                                           struct ima_field_data *field_data)
 {
+        u32 len = (show == IMA_SHOW_BINARY_OLD_STRING_FMT) ?
+            strlen(field_data->data) : field_data->len;
+
         if (show != IMA_SHOW_BINARY_NO_FIELD_LEN)
-                ima_putc(m, &field_data->len, sizeof(u32));
+                ima_putc(m, &len, sizeof(len));
 
-        if (!field_data->len)
+        if (!len)
                 return;
 
-        ima_putc(m, field_data->data, field_data->len);
+        ima_putc(m, field_data->data, len);
 }
 
 static void ima_show_template_field_data(struct seq_file *m,
@@ -129,6 +123,7 @@ static void ima_show_template_field_data(struct seq_file *m,
                 break;
         case IMA_SHOW_BINARY:
         case IMA_SHOW_BINARY_NO_FIELD_LEN:
+        case IMA_SHOW_BINARY_OLD_STRING_FMT:
                 ima_show_template_data_binary(m, show, datafmt, field_data);
                 break;
         default:
@@ -277,8 +272,6 @@ static int ima_eventname_init_common(struct integrity_iint_cache *iint,
 {
         const char *cur_filename = NULL;
         u32 cur_filename_len = 0;
-        enum data_formats fmt = size_limit ?
-            DATA_FMT_EVENT_NAME : DATA_FMT_STRING;
 
         BUG_ON(filename == NULL && file == NULL);
 
@@ -301,7 +294,7 @@ static int ima_eventname_init_common(struct integrity_iint_cache *iint,
                 cur_filename_len = IMA_EVENT_NAME_LEN_MAX;
 out:
         return ima_write_template_field_data(cur_filename, cur_filename_len,
-                                             fmt, field_data);
+                                             DATA_FMT_STRING, field_data);
 }
 
 /*
diff --git a/security/integrity/integrity_audit.c b/security/integrity/integrity_audit.c
index 809ec8428ee7..aab9fa5a8231 100644
--- a/security/integrity/integrity_audit.c
+++ b/security/integrity/integrity_audit.c
@@ -7,7 +7,7 @@
  * the Free Software Foundation, version 2 of the License.
  *
  * File: integrity_audit.c
- *      Audit calls for the integrity subsystem
+ *      Audit calls for the integrity subsystem
  */
 
 #include <linux/fs.h>
@@ -33,6 +33,7 @@ void integrity_audit_msg(int audit_msgno, struct inode *inode,
                          const char *cause, int result, int audit_info)
 {
         struct audit_buffer *ab;
+        char name[TASK_COMM_LEN];
 
         if (!integrity_audit_info && audit_info == 1)   /* Skip info messages */
                 return;
@@ -49,7 +50,7 @@ void integrity_audit_msg(int audit_msgno, struct inode *inode,
         audit_log_format(ab, " cause=");
         audit_log_string(ab, cause);
         audit_log_format(ab, " comm=");
-        audit_log_untrustedstring(ab, current->comm);
+        audit_log_untrustedstring(ab, get_task_comm(name, current));
         if (fname) {
                 audit_log_format(ab, " name=");
                 audit_log_untrustedstring(ab, fname);