tree dda70a39b9d857725fd20f57e1869fba897377fd
parent 9efb069de4ba748d284f6129e71de239f801053a
author Miklos Szeredi <mszeredi@redhat.com> 1611825768 +0100
committer Miklos Szeredi <mszeredi@redhat.com> 1611825768 +0100

ovl: perform vfs_getxattr() with mounter creds

The vfs_getxattr() in ovl_xattr_set() is used to check whether an xattr
exist on a lower layer file that is to be removed.  If the xattr does not
exist, then no need to copy up the file.

This call of vfs_getxattr() wasn't wrapped in credential override, and this
is probably okay.  But for consitency wrap this instance as well.

Reported-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>