On 27.02.2017 16:55, Konstantin Khorenko wrote:
Please consider this to ReadyKernel.

Queued, thanks.


https://readykernel.com/

--
Best regards,

Konstantin Khorenko,
Virtuozzo Linux Kernel Team

On 02/27/2017 04:53 PM, Konstantin Khorenko wrote:
The commit is pushed to "branch-rh7-3.10.0-514.6.1.vz7.28.x-ovz" and
will appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-514.6.1.vz7.28.7
------>
commit b207397b05680d0d47b484ff3090194eb10f5cc8
Author: Eric Dumazet <eduma...@google.com>
Date:   Fri Feb 3 14:59:38 2017 -0800

    ms/tcp: avoid infinite loop in tcp_splice_read()

    Splicing from TCP socket is vulnerable when a packet with URG flag is
    received and stored into receive queue.

    __tcp_splice_read() returns 0, and sk_wait_data() immediately
    returns since there is the problematic skb in queue.

    This is a nice way to burn cpu (aka infinite loop) and trigger
    soft lockups.

    Again, this gem was found by syzkaller tool.

    Fixes: 9c55e01c0cc8 ("[TCP]: Splice receive support.")
    Signed-off-by: Eric Dumazet <eduma...@google.com>
    Reported-by: Dmitry Vyukov  <dvyu...@google.com>
    Cc: Willy Tarreau <w...@1wt.eu>
    Signed-off-by: David S. Miller <da...@davemloft.net>

    https://jira.sw.ru/browse/PSBM-61135
    https://bugzilla.redhat.com/show_bug.cgi?id=1426542
    CVE-2017-6214 kernel: ipv4/tcp: Infinite loop in tcp_splice_read()

    (cherry picked from commit ccf7abb93af09ad0868ae9033d1ca8108bdaec82)
    Signed-off-by: Konstantin Khorenko <khore...@virtuozzo.com>
.


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