IMA: open all files O_LARGEFILE

commit 1a62e958fa4aaeeb752311b4f5e16b2a86737b23 upstream.

If IMA tried to measure a file which was larger than 4G dentry_open would fail
with -EOVERFLOW since IMA wasn't passing O_LARGEFILE.  This patch passes
O_LARGEFILE to all IMA opens to avoid this problem.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 4ed0c35dda5fed0e756ba9f67637c46b97a0a26e..88407e5dee0179645d91675372ec030d2fde89f5 100644 (file)
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -192,7 +192,8 @@ int ima_path_check(struct path *path, int mask)
                struct dentry *dentry = dget(path->dentry);
                struct vfsmount *mnt = mntget(path->mnt);
 
-               file = dentry_open(dentry, mnt, O_RDONLY, current_cred());
+               file = dentry_open(dentry, mnt, O_RDONLY | O_LARGEFILE,
+                                  current_cred());
                if (IS_ERR(file)) {
                        pr_info("%s dentry_open failed\n", dentry->d_name.name);
                        rc = PTR_ERR(file);