Messages in this thread Patch in this message | | | From | Mark Fasheh <> | Subject | [PATCH 14/30] ocfs2: Add missing permission checks | Date | Thu, 17 Jan 2008 14:35:40 -0800 |
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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> --- fs/ocfs2/ioctl.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c index 7003d58..5177fba 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; -- 1.5.3.6
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