lkml.org 
[lkml]   [2019]   [Oct]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 5.3 034/344] appletalk: enforce CAP_NET_RAW for raw sockets
    Date
    From: Ori Nimron <orinimron123@gmail.com>

    [ Upstream commit 6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac ]

    When creating a raw AF_APPLETALK socket, CAP_NET_RAW needs to be checked
    first.

    Signed-off-by: Ori Nimron <orinimron123@gmail.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    net/appletalk/ddp.c | 5 +++++
    1 file changed, 5 insertions(+)

    --- a/net/appletalk/ddp.c
    +++ b/net/appletalk/ddp.c
    @@ -1023,6 +1023,11 @@ static int atalk_create(struct net *net,
    */
    if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM)
    goto out;
    +
    + rc = -EPERM;
    + if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW))
    + goto out;
    +
    rc = -ENOMEM;
    sk = sk_alloc(net, PF_APPLETALK, GFP_KERNEL, &ddp_proto, kern);
    if (!sk)

    \
     
     \ /
      Last update: 2019-10-03 18:41    [W:2.112 / U:0.372 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site