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authorMark Fasheh <mark.fasheh@oracle.com>2007-12-19 05:58:18 +0300
committerMark Fasheh <mark.fasheh@oracle.com>2008-01-26 02:05:19 +0300
commit0957f00796157564281ea6ff2cea7ef4f897775a (patch)
treeb7db05ed93642d3f5769816b57633673f9ec81f9
parent7909f2bf835376a20d6dbf853eb459a27566eba2 (diff)
downloadlinux-0957f00796157564281ea6ff2cea7ef4f897775a.tar.xz
ocfs2: Add missing permission checks
Check that an online resize is being driven by a user with permission to change system resource limits. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
-rw-r--r--fs/ocfs2/ioctl.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 7003d5820d79..5177fba5162b 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -144,12 +144,18 @@ int ocfs2_ioctl(struct inode * inode, struct file * filp,
return ocfs2_change_file_space(filp, cmd, &sr);
case OCFS2_IOC_GROUP_EXTEND:
+ if (!capable(CAP_SYS_RESOURCE))
+ return -EPERM;
+
if (get_user(new_clusters, (int __user *)arg))
return -EFAULT;
return ocfs2_group_extend(inode, new_clusters);
case OCFS2_IOC_GROUP_ADD:
case OCFS2_IOC_GROUP_ADD64:
+ if (!capable(CAP_SYS_RESOURCE))
+ return -EPERM;
+
if (copy_from_user(&input, (int __user *) arg, sizeof(input)))
return -EFAULT;