• Daniel Wagner's avatar
    net: net_cls: fd passed in SCM_RIGHTS datagram not set correctly · d8429506
    Daniel Wagner authored
    Commit 6a328d8c changed the update
    logic for the socket but it does not update the SCM_RIGHTS update
    as well. This patch is based on the net_prio fix commit
    
    48a87cc2
    
        net: netprio: fd passed in SCM_RIGHTS datagram not set correctly
    
        A socket fd passed in a SCM_RIGHTS datagram was not getting
        updated with the new tasks cgrp prioidx. This leaves IO on
        the socket tagged with the old tasks priority.
    
        To fix this add a check in the scm recvmsg path to update the
        sock cgrp prioidx with the new tasks value.
    
    Let's apply the same fix for net_cls.
    Signed-off-by: default avatarDaniel Wagner <daniel.wagner@bmw-carit.de>
    Reported-by: default avatarLi Zefan <lizefan@huawei.com>
    Cc: "David S. Miller" <davem@davemloft.net>
    Cc: "Eric W. Biederman" <ebiederm@xmission.com>
    Cc: Al Viro <viro@zeniv.linux.org.uk>
    Cc: John Fastabend <john.r.fastabend@intel.com>
    Cc: Neil Horman <nhorman@tuxdriver.com>
    Cc: netdev@vger.kernel.org
    Cc: cgroups@vger.kernel.org
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    d8429506
scm.c 7.89 KB