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:   Fri, 20 Nov 2020 20:01:49 +0200
From:   Vladimir Oltean <>
To:     Christian Eggers <>
Cc:     Andrew Lunn <>,
        Florian Fainelli <>,
        Vivien Didelot <>,
        "David S . Miller" <>,
        Jakub Kicinski <>,,
Subject: Re: [PATCH net-next v2] net: dsa: avoid potential use-after-free

On Thu, Nov 19, 2020 at 12:09:06PM +0100, Christian Eggers wrote:
> If dsa_switch_ops::port_txtstamp() returns false, clone will be freed
> immediately. Shouldn't store a pointer to freed memory.
> Signed-off-by: Christian Eggers <>
> Fixes: 146d442c2357 ("net: dsa: Keep a pointer to the skb clone for TX timestamping")
> ---

IMO this is one of the cases to which the following from
Documentation/process/stable-kernel-rules.rst does not apply:

 - It must fix a real bug that bothers people (not a, "This could be a
   problem..." type thing).

Therefore, specifying "net-next" as the target tree here as opposed to
"net" is the correct choice.

Reviewed-by: Vladimir Oltean <>
Tested-by: Vladimir Oltean <>

Powered by blists - more mailing lists