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    Subject[PATCH 5.2 028/313] mISDN: enforce CAP_NET_RAW for raw sockets
    Date
    From: Ori Nimron <orinimron123@gmail.com>

    [ Upstream commit b91ee4aa2a2199ba4d4650706c272985a5a32d80 ]

    When creating a raw AF_ISDN 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>
    ---
    drivers/isdn/mISDN/socket.c | 2 ++
    1 file changed, 2 insertions(+)

    --- a/drivers/isdn/mISDN/socket.c
    +++ b/drivers/isdn/mISDN/socket.c
    @@ -754,6 +754,8 @@ base_sock_create(struct net *net, struct

    if (sock->type != SOCK_RAW)
    return -ESOCKTNOSUPPORT;
    + if (!capable(CAP_NET_RAW))
    + return -EPERM;

    sk = sk_alloc(net, PF_ISDN, GFP_KERNEL, &mISDN_proto, kern);
    if (!sk)

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