linux-kernel - tc qdisc command partially broken with patch-4.14.76-77 up to patch-4.14.77-78

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20181025201221.Horde.1UXSw9cRIOdmNlpjDXbda3Y@aws-it.at>
Date:   Thu, 25 Oct 2018 20:12:21 +0000
From:   astx <astx@...-it.at>
To:     linux-kernel@...r.kernel.org
Subject: tc qdisc command partially broken with patch-4.14.76-77 up to
 patch-4.14.77-78

tc qdisc command is partially broken after applying patch-4.14.76-77.
Applying patch-4.14.77-78 didn't fix it.

Test command:
   tc qdisc add dev eth0 root handle 1: hfsc default fffd
Kernel answer:
   RTNETLINK answers: Numerical result out of range

I have identified the problematic sub-patch out of patch-4.14.76-77 to  
be the problem:

    diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
    index 22bc6fc48311..cd69aa067543 100644

Without this small patch the above "tc qdisc" command works like a charm.

Maybe someone can have a look at it.

Best regards, Toni