linux-kernel - [PATCH 3/3] IMA: open all files O

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Message-ID: <20090511175922.7719.32980.stgit@dhcp231-142.rdu.redhat.com>
Date:	Mon, 11 May 2009 13:59:22 -0400
From:	Eric Paris <eparis@...hat.com>
To:	zohar@...ux.vnet.ibm.com
Cc:	linux-kernel@...r.kernel.org, jmorris@...ei.org
Subject: [PATCH 3/3] IMA: open all files O_LARGEFILE

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@...hat.com>
---

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

diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 1987424..c4228c0 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -180,7 +180,8 @@ 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);

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