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-rw-r--r--fs/exec.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 929b580..b9f1c14 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -45,6 +45,7 @@
#include <linux/proc_fs.h>
#include <linux/mount.h>
#include <linux/security.h>
+#include <linux/ima.h>
#include <linux/syscalls.h>
#include <linux/tsacct_kern.h>
#include <linux/cn_proc.h>
@@ -127,6 +128,9 @@ SYSCALL_DEFINE1(uselib, const char __user *, library)
MAY_READ | MAY_EXEC | MAY_OPEN);
if (error)
goto exit;
+ error = ima_path_check(&nd.path, MAY_READ | MAY_EXEC | MAY_OPEN);
+ if (error)
+ goto exit;
file = nameidata_to_filp(&nd, O_RDONLY|O_LARGEFILE);
error = PTR_ERR(file);
@@ -674,6 +678,9 @@ struct file *open_exec(const char *name)
err = inode_permission(nd.path.dentry->d_inode, MAY_EXEC | MAY_OPEN);
if (err)
goto out_path_put;
+ err = ima_path_check(&nd.path, MAY_EXEC | MAY_OPEN);
+ if (err)
+ goto out_path_put;
file = nameidata_to_filp(&nd, O_RDONLY|O_LARGEFILE);
if (IS_ERR(file))
@@ -1184,6 +1191,9 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
retval = security_bprm_check(bprm);
if (retval)
return retval;
+ retval = ima_bprm_check(bprm);
+ if (retval)
+ return retval;
/* kernel module loader fixup */
/* so we don't try to load run modprobe in kernel space. */
@@ -1284,6 +1294,7 @@ int do_execve(char * filename,
retval = mutex_lock_interruptible(&current->cred_exec_mutex);
if (retval < 0)
goto out_free;
+ current->in_execve = 1;
retval = -ENOMEM;
bprm->cred = prepare_exec_creds();
@@ -1337,6 +1348,7 @@ int do_execve(char * filename,
goto out;
/* execve succeeded */
+ current->in_execve = 0;
mutex_unlock(&current->cred_exec_mutex);
acct_update_integrals(current);
free_bprm(bprm);
@@ -1355,6 +1367,7 @@ out_file:
}
out_unlock:
+ current->in_execve = 0;
mutex_unlock(&current->cred_exec_mutex);
out_free:
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