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  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Mon, 23 Sep 2019 22:13:44 -0700
From:   Cong Wang <>
To:     Vinicius Costa Gomes <>
Cc:     Linux Kernel Network Developers <>,
        Jamal Hadi Salim <>,
        Jiri Pirko <>,
        David Miller <>
Subject: Re: [PATCH net v3] net/sched: cbs: Fix not adding cbs instance to list

On Mon, Sep 23, 2019 at 10:04 PM Vinicius Costa Gomes
<> wrote:
> When removing a cbs instance when offloading is enabled, the crash
> below can be observed.
> The problem happens because that when offloading is enabled, the cbs
> instance is not added to the list.
> Also, the current code doesn't handle correctly the case when offload
> is disabled without removing the qdisc: if the link speed changes the
> credit calculations will be wrong. When we create the cbs instance
> with offloading enabled, it's not added to the notification list, when
> later we disable offloading, it's not in the list, so link speed
> changes will not affect it.
> The solution for both issues is the same, add the cbs instance being
> created unconditionally to the global list, even if the link state
> notification isn't useful "right now".
> Fixes: e0a7683 ("net/sched: cbs: fix port_rate miscalculation")
> Signed-off-by: Vinicius Costa Gomes <>

Acked-by: Cong Wang <>

Powered by blists - more mailing lists