[patch 015/108] IMA: open all files O_LARGEFILE

[Greg KH]

2.6.30-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Eric Paris <eparis@xxxxxxxxxx>

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@xxxxxxxxxx>
Acked-by: Mimi Zohar <zohar@xxxxxxxxxx>
Signed-off-by: James Morris <jmorris@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 security/integrity/ima/ima_main.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- 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, in
 		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);


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