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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-03 09:26:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-03 09:26:18 -0700
commitbea803183e12a1c78a12ec70907174d13d958333 (patch)
tree56a720b1eb02bb15ce5135078d9bbcbf06b74235
parentcd6362befe4cc7bf589a5236d2a780af2d47bcc9 (diff)
parentf64410ec665479d7b4b77b7519e814253ed0f686 (diff)
downloadlinux-stericsson-bea803183e12a1c78a12ec70907174d13d958333.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris: "Apart from reordering the SELinux mmap code to ensure DAC is called before MAC, these are minor maintenance updates" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (23 commits) selinux: correctly label /proc inodes in use before the policy is loaded selinux: put the mmap() DAC controls before the MAC controls selinux: fix the output of ./scripts/get_maintainer.pl for SELinux evm: enable key retention service automatically ima: skip memory allocation for empty files evm: EVM does not use MD5 ima: return d_name.name if d_path fails integrity: fix checkpatch errors ima: fix erroneous removal of security.ima xattr security: integrity: Use a more current logging style MAINTAINERS: email updates and other misc. changes ima: reduce memory usage when a template containing the n field is used ima: restore the original behavior for sending data with ima template Integrity: Pass commname via get_task_comm() fs: move i_readcount ima: use static const char array definitions security: have cap_dentry_init_security return error ima: new helper: file_inode(file) kernel: Mark function as static in kernel/seccomp.c capability: Use current logging styles ...
-rw-r--r--MAINTAINERS22
-rw-r--r--include/linux/fs.h6
-rw-r--r--kernel/capability.c29
-rw-r--r--kernel/seccomp.c2
-rw-r--r--security/Makefile12
-rw-r--r--security/apparmor/lsm.c2
-rw-r--r--security/capability.c2
-rw-r--r--security/integrity/Makefile4
-rw-r--r--security/integrity/evm/Kconfig6
-rw-r--r--security/integrity/evm/evm.h28
-rw-r--r--security/integrity/evm/evm_crypto.c8
-rw-r--r--security/integrity/evm/evm_main.c6
-rw-r--r--security/integrity/evm/evm_secfs.c6
-rw-r--r--security/integrity/iint.c2
-rw-r--r--security/integrity/ima/ima.h2
-rw-r--r--security/integrity/ima/ima_api.c20
-rw-r--r--security/integrity/ima/ima_appraise.c4
-rw-r--r--security/integrity/ima/ima_crypto.c37
-rw-r--r--security/integrity/ima/ima_fs.c8
-rw-r--r--security/integrity/ima/ima_init.c9
-rw-r--r--security/integrity/ima/ima_main.c11
-rw-r--r--security/integrity/ima/ima_policy.c79
-rw-r--r--security/integrity/ima/ima_queue.c12
-rw-r--r--security/integrity/ima/ima_template.c19
-rw-r--r--security/integrity/ima/ima_template_lib.c29
-rw-r--r--security/integrity/integrity_audit.c7
-rw-r--r--security/keys/encrypted-keys/encrypted.c2
-rw-r--r--security/keys/trusted.c6
-rw-r--r--security/selinux/hooks.c60
-rw-r--r--security/selinux/selinuxfs.c2
30 files changed, 235 insertions, 207 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index 11b3937adb89..346744599b4f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3401,7 +3401,9 @@ F: Documentation/filesystems/ext4.txt
F: fs/ext4/
Extended Verification Module (EVM)
-M: Mimi Zohar <zohar@us.ibm.com>
+M: Mimi Zohar <zohar@linux.vnet.ibm.com>
+L: linux-ima-devel@lists.sourceforge.net
+L: linux-security-module@vger.kernel.org
S: Supported
F: security/integrity/evm/
@@ -4423,8 +4425,11 @@ S: Maintained
F: drivers/ipack/
INTEGRITY MEASUREMENT ARCHITECTURE (IMA)
-M: Mimi Zohar <zohar@us.ibm.com>
+M: Mimi Zohar <zohar@linux.vnet.ibm.com>
M: Dmitry Kasatkin <d.kasatkin@samsung.com>
+L: linux-ima-devel@lists.sourceforge.net
+L: linux-ima-user@lists.sourceforge.net
+L: linux-security-module@vger.kernel.org
S: Supported
F: security/integrity/ima/
@@ -5092,8 +5097,8 @@ F: include/keys/
F: security/keys/
KEYS-TRUSTED
-M: David Safford <safford@watson.ibm.com>
-M: Mimi Zohar <zohar@us.ibm.com>
+M: David Safford <safford@us.ibm.com>
+M: Mimi Zohar <zohar@linux.vnet.ibm.com>
L: linux-security-module@vger.kernel.org
L: keyrings@linux-nfs.org
S: Supported
@@ -5103,8 +5108,8 @@ F: security/keys/trusted.c
F: security/keys/trusted.h
KEYS-ENCRYPTED
-M: Mimi Zohar <zohar@us.ibm.com>
-M: David Safford <safford@watson.ibm.com>
+M: Mimi Zohar <zohar@linux.vnet.ibm.com>
+M: David Safford <safford@us.ibm.com>
L: linux-security-module@vger.kernel.org
L: keyrings@linux-nfs.org
S: Supported
@@ -7787,11 +7792,10 @@ M: Security Officers <security@kernel.org>
S: Supported
SELINUX SECURITY MODULE
+M: Paul Moore <paul@paul-moore.com>
M: Stephen Smalley <sds@tycho.nsa.gov>
-M: James Morris <james.l.morris@oracle.com>
M: Eric Paris <eparis@parisplace.org>
-M: Paul Moore <paul@paul-moore.com>
-L: selinux@tycho.nsa.gov (subscribers-only, general discussion)
+L: selinux@tycho.nsa.gov (moderated for non-subscribers)
W: http://selinuxproject.org
T: git git://git.infradead.org/users/pcmoore/selinux
S: Supported
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 23b2a35d712e..6e765d28841b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -589,6 +589,9 @@ struct inode {
atomic_t i_count;
atomic_t i_dio_count;
atomic_t i_writecount;
+#ifdef CONFIG_IMA
+ atomic_t i_readcount; /* struct files open RO */
+#endif
const struct file_operations *i_fop; /* former ->i_op->default_file_ops */
struct file_lock *i_flock;
struct address_space i_data;
@@ -609,9 +612,6 @@ struct inode {
struct hlist_head i_fsnotify_marks;
#endif
-#ifdef CONFIG_IMA
- atomic_t i_readcount; /* struct files open RO */
-#endif
void *i_private; /* fs or device private pointer */
};
diff --git a/kernel/capability.c b/kernel/capability.c
index 34019c57888d..a8d63df0c322 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -7,6 +7,8 @@
* 30 May 2002: Cleanup, Robert M. Love <rml@tech9.net>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/audit.h>
#include <linux/capability.h>
#include <linux/mm.h>
@@ -42,15 +44,10 @@ __setup("no_file_caps", file_caps_disable);
static void warn_legacy_capability_use(void)
{
- static int warned;
- if (!warned) {
- char name[sizeof(current->comm)];
-
- printk(KERN_INFO "warning: `%s' uses 32-bit capabilities"
- " (legacy support in use)\n",
- get_task_comm(name, current));
- warned = 1;
- }
+ char name[sizeof(current->comm)];
+
+ pr_info_once("warning: `%s' uses 32-bit capabilities (legacy support in use)\n",
+ get_task_comm(name, current));
}
/*
@@ -71,16 +68,10 @@ static void warn_legacy_capability_use(void)
static void warn_deprecated_v2(void)
{
- static int warned;
+ char name[sizeof(current->comm)];
- if (!warned) {
- char name[sizeof(current->comm)];
-
- printk(KERN_INFO "warning: `%s' uses deprecated v2"
- " capabilities in a way that may be insecure.\n",
- get_task_comm(name, current));
- warned = 1;
- }
+ pr_info_once("warning: `%s' uses deprecated v2 capabilities in a way that may be insecure\n",
+ get_task_comm(name, current));
}
/*
@@ -380,7 +371,7 @@ bool has_capability_noaudit(struct task_struct *t, int cap)
bool ns_capable(struct user_namespace *ns, int cap)
{
if (unlikely(!cap_valid(cap))) {
- printk(KERN_CRIT "capable() called with invalid cap=%u\n", cap);
+ pr_crit("capable() called with invalid cap=%u\n", cap);
BUG();
}
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 4f18e754c23e..fd609bd9d6dd 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -290,7 +290,7 @@ free_prog:
*
* Returns 0 on success and non-zero otherwise.
*/
-long seccomp_attach_user_filter(char __user *user_filter)
+static long seccomp_attach_user_filter(char __user *user_filter)
{
struct sock_fprog fprog;
long ret = -EFAULT;
diff --git a/security/Makefile b/security/Makefile
index a5918e01a4f7..05f1c934d74b 100644
--- a/security/Makefile
+++ b/security/Makefile
@@ -16,14 +16,14 @@ obj-$(CONFIG_MMU) += min_addr.o
# Object file lists
obj-$(CONFIG_SECURITY) += security.o capability.o
obj-$(CONFIG_SECURITYFS) += inode.o
-obj-$(CONFIG_SECURITY_SELINUX) += selinux/built-in.o
-obj-$(CONFIG_SECURITY_SMACK) += smack/built-in.o
+obj-$(CONFIG_SECURITY_SELINUX) += selinux/
+obj-$(CONFIG_SECURITY_SMACK) += smack/
obj-$(CONFIG_AUDIT) += lsm_audit.o
-obj-$(CONFIG_SECURITY_TOMOYO) += tomoyo/built-in.o
-obj-$(CONFIG_SECURITY_APPARMOR) += apparmor/built-in.o
-obj-$(CONFIG_SECURITY_YAMA) += yama/built-in.o
+obj-$(CONFIG_SECURITY_TOMOYO) += tomoyo/
+obj-$(CONFIG_SECURITY_APPARMOR) += apparmor/
+obj-$(CONFIG_SECURITY_YAMA) += yama/
obj-$(CONFIG_CGROUP_DEVICE) += device_cgroup.o
# Object integrity file lists
subdir-$(CONFIG_INTEGRITY) += integrity
-obj-$(CONFIG_INTEGRITY) += integrity/built-in.o
+obj-$(CONFIG_INTEGRITY) += integrity/
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 4257b7e2796b..998100093332 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -751,7 +751,7 @@ module_param_named(enabled, apparmor_enabled, bool, S_IRUGO);
static int __init apparmor_enabled_setup(char *str)
{
unsigned long enabled;
- int error = strict_strtoul(str, 0, &enabled);
+ int error = kstrtoul(str, 0, &enabled);
if (!error)
apparmor_enabled = enabled ? 1 : 0;
return 1;
diff --git a/security/capability.c b/security/capability.c
index 21e2b9cae685..ad0d4de69944 100644
--- a/security/capability.c
+++ b/security/capability.c
@@ -116,7 +116,7 @@ static int cap_dentry_init_security(struct dentry *dentry, int mode,
struct qstr *name, void **ctx,
u32 *ctxlen)
{
- return 0;
+ return -EOPNOTSUPP;
}
static int cap_inode_alloc_security(struct inode *inode)
diff --git a/security/integrity/Makefile b/security/integrity/Makefile
index 0f9cffb1f9ad..0793f4811cb7 100644
--- a/security/integrity/Makefile
+++ b/security/integrity/Makefile
@@ -10,6 +10,6 @@ obj-$(CONFIG_INTEGRITY_ASYMMETRIC_KEYS) += digsig_asymmetric.o
integrity-y := iint.o
subdir-$(CONFIG_IMA) += ima
-obj-$(CONFIG_IMA) += ima/built-in.o
+obj-$(CONFIG_IMA) += ima/
subdir-$(CONFIG_EVM) += evm
-obj-$(CONFIG_EVM) += evm/built-in.o
+obj-$(CONFIG_EVM) += evm/
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 a9c3d3cd1990..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 = strict_strtoul(args[0].from, 16,
- &entry->fsmagic);
+ result = kstrtoul(args[0].from, 16, &entry->fsmagic);
if (!result)
entry->flags |= IMA_FSMAGIC;
break;
@@ -547,7 +548,7 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry)
break;
}
- result = strict_strtoul(args[0].from, 10, &lnum);
+ result = kstrtoul(args[0].from, 10, &lnum);
if (!result) {
entry->uid = make_kuid(current_user_ns(), (uid_t)lnum);
if (!uid_valid(entry->uid) || (((uid_t)lnum) != lnum))
@@ -564,7 +565,7 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry)
break;
}
- result = strict_strtoul(args[0].from, 10, &lnum);
+ result = kstrtoul(args[0].from, 10, &lnum);
if (!result) {
entry->fowner = make_kuid(current_user_ns(), (uid_t)lnum);
if (!uid_valid(entry->fowner) || (((uid_t)lnum) != lnum))
@@ -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 d7efb30404aa..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>
@@ -22,7 +22,7 @@ static int __init integrity_audit_setup(char *str)
{
unsigned long audit;
- if (!strict_strtoul(str, 0, &audit))
+ if (!kstrtoul(str, 0, &audit))
integrity_audit_info = audit ? 1 : 0;
return 1;
}
@@ -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);
diff --git a/security/keys/encrypted-keys/encrypted.c b/security/keys/encrypted-keys/encrypted.c
index 9e1e005c7596..5fe443d120af 100644
--- a/security/keys/encrypted-keys/encrypted.c
+++ b/security/keys/encrypted-keys/encrypted.c
@@ -609,7 +609,7 @@ static struct encrypted_key_payload *encrypted_key_alloc(struct key *key,
long dlen;
int ret;
- ret = strict_strtol(datalen, 10, &dlen);
+ ret = kstrtol(datalen, 10, &dlen);
if (ret < 0 || dlen < MIN_DATA_SIZE || dlen > MAX_DATA_SIZE)
return ERR_PTR(-EINVAL);
diff --git a/security/keys/trusted.c b/security/keys/trusted.c
index e13fcf7636f7..6b804aa4529a 100644
--- a/security/keys/trusted.c
+++ b/security/keys/trusted.c
@@ -753,7 +753,7 @@ static int getoptions(char *c, struct trusted_key_payload *pay,
return -EINVAL;
break;
case Opt_keyhandle:
- res = strict_strtoul(args[0].from, 16, &handle);
+ res = kstrtoul(args[0].from, 16, &handle);
if (res < 0)
return -EINVAL;
opt->keytype = SEAL_keytype;
@@ -782,7 +782,7 @@ static int getoptions(char *c, struct trusted_key_payload *pay,
return -EINVAL;
break;
case Opt_pcrlock:
- res = strict_strtoul(args[0].from, 10, &lock);
+ res = kstrtoul(args[0].from, 10, &lock);
if (res < 0)
return -EINVAL;
opt->pcrlock = lock;
@@ -820,7 +820,7 @@ static int datablob_parse(char *datablob, struct trusted_key_payload *p,
c = strsep(&datablob, " \t");
if (!c)
return -EINVAL;
- ret = strict_strtol(c, 10, &keylen);
+ ret = kstrtol(c, 10, &keylen);
if (ret < 0 || keylen < MIN_KEY_SIZE || keylen > MAX_KEY_SIZE)
return -EINVAL;
p->key_len = keylen;
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index b332e2cc0954..869c2f1e0da1 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -106,7 +106,7 @@ int selinux_enforcing;
static int __init enforcing_setup(char *str)
{
unsigned long enforcing;
- if (!strict_strtoul(str, 0, &enforcing))
+ if (!kstrtoul(str, 0, &enforcing))
selinux_enforcing = enforcing ? 1 : 0;
return 1;
}
@@ -119,7 +119,7 @@ int selinux_enabled = CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE;
static int __init selinux_enabled_setup(char *str)
{
unsigned long enabled;
- if (!strict_strtoul(str, 0, &enabled))
+ if (!kstrtoul(str, 0, &enabled))
selinux_enabled = enabled ? 1 : 0;
return 1;
}
@@ -1418,15 +1418,33 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
isec->sid = sbsec->sid;
if ((sbsec->flags & SE_SBPROC) && !S_ISLNK(inode->i_mode)) {
- if (opt_dentry) {
- isec->sclass = inode_mode_to_security_class(inode->i_mode);
- rc = selinux_proc_get_sid(opt_dentry,
- isec->sclass,
- &sid);
- if (rc)
- goto out_unlock;
- isec->sid = sid;
- }
+ /* We must have a dentry to determine the label on
+ * procfs inodes */
+ if (opt_dentry)
+ /* Called from d_instantiate or
+ * d_splice_alias. */
+ dentry = dget(opt_dentry);
+ else
+ /* Called from selinux_complete_init, try to
+ * find a dentry. */
+ dentry = d_find_alias(inode);
+ /*
+ * This can be hit on boot when a file is accessed
+ * before the policy is loaded. When we load policy we
+ * may find inodes that have no dentry on the
+ * sbsec->isec_head list. No reason to complain as
+ * these will get fixed up the next time we go through
+ * inode_doinit() with a dentry, before these inodes
+ * could be used again by userspace.
+ */
+ if (!dentry)
+ goto out_unlock;
+ isec->sclass = inode_mode_to_security_class(inode->i_mode);
+ rc = selinux_proc_get_sid(dentry, isec->sclass, &sid);
+ dput(dentry);
+ if (rc)
+ goto out_unlock;
+ isec->sid = sid;
}
break;
}
@@ -3205,24 +3223,20 @@ error:
static int selinux_mmap_addr(unsigned long addr)
{
- int rc = 0;
- u32 sid = current_sid();
+ int rc;
+
+ /* do DAC check on address space usage */
+ rc = cap_mmap_addr(addr);
+ if (rc)
+ return rc;
- /*
- * notice that we are intentionally putting the SELinux check before
- * the secondary cap_file_mmap check. This is such a likely attempt
- * at bad behaviour/exploit that we always want to get the AVC, even
- * if DAC would have also denied the operation.
- */
if (addr < CONFIG_LSM_MMAP_MIN_ADDR) {
+ u32 sid = current_sid();
rc = avc_has_perm(sid, sid, SECCLASS_MEMPROTECT,
MEMPROTECT__MMAP_ZERO, NULL);
- if (rc)
- return rc;
}
- /* do DAC check on address space usage */
- return cap_mmap_addr(addr);
+ return rc;
}
static int selinux_mmap_file(struct file *file, unsigned long reqprot,
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index d60c0ee66387..c71737f6d1cc 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -54,7 +54,7 @@ unsigned int selinux_checkreqprot = CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE;
static int __init checkreqprot_setup(char *str)
{
unsigned long checkreqprot;
- if (!strict_strtoul(str, 0, &checkreqprot))
+ if (!kstrtoul(str, 0, &checkreqprot))
selinux_checkreqprot = checkreqprot ? 1 : 0;
return 1;
}