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Commit 52137abe authored by Eric W. Biederman's avatar Eric W. Biederman
Browse files

userns: Convert user specfied uids and gids in chown into kuids and kgid 



Acked-by: default avatarSerge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
parent 8e96e3b7

fs/open.c

+11 −2
Original line number Diff line number Diff line
@@ -506,15 +506,24 @@ static int chown_common(struct path *path, uid_t user, gid_t group) 
	struct inode *inode = path->dentry->d_inode;

	int error;

	struct iattr newattrs;

	kuid_t uid;

	kgid_t gid;



	uid = make_kuid(current_user_ns(), user);

	gid = make_kgid(current_user_ns(), group);



	newattrs.ia_valid =  ATTR_CTIME;

	if (user != (uid_t) -1) {

		if (!uid_valid(uid))

			return -EINVAL;

		newattrs.ia_valid |= ATTR_UID;

		newattrs.ia_uid = user;

		newattrs.ia_uid = uid;

	}

	if (group != (gid_t) -1) {

		if (!gid_valid(gid))

			return -EINVAL;

		newattrs.ia_valid |= ATTR_GID;

		newattrs.ia_gid = group;

		newattrs.ia_gid = gid;

	}

	if (!S_ISDIR(inode->i_mode))

		newattrs.ia_valid |=