From: Andreas Gruenbacher <agruenba@xxxxxxxxxx> Don't allow acls which contain unmapped identifiers: they are meaningful for remote file systems only. Signed-off-by: Andreas Gruenbacher <agruenba@xxxxxxxxxx> --- fs/ext4/richacl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/ext4/richacl.c b/fs/ext4/richacl.c index b46ac60..2581117 100644 --- a/fs/ext4/richacl.c +++ b/fs/ext4/richacl.c @@ -62,6 +62,10 @@ __ext4_set_richacl(handle_t *handle, struct inode *inode, struct richacl *acl) int retval; if (acl) { + /* Don't allow acls with unmapped identifiers. */ + if (richacl_has_unmapped_identifiers(acl)) + return -EINVAL; + if (richacl_equiv_mode(acl, &mode) == 0) { inode->i_ctime = ext4_current_time(inode); inode->i_mode = mode; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html