Re: [PATCH net-next V2] can: j1939: fix uaf warning in j1939_session_destroy

[Marc Kleine-Budde]

On 08.08.2024 19:07:55, Edward Adam Davis wrote:
> On Thu, 8 Aug 2024 09:49:18 +0200, Oleksij Rempel wrote:
> > > the skb to the queue and increase the skb reference count through it.
> > > 
> > > Reported-and-tested-by: syzbot+ad601904231505ad6617@xxxxxxxxxxxxxxxxxxxxxxxxx
> > > Closes: https://syzkaller.appspot.com/bug?extid=ad601904231505ad6617
> > > Signed-off-by: Edward Adam Davis <eadavis@xxxxxx>
> > 
> > This patch breaks j1939.
> > The issue can be reproduced by running following commands:
> I tried to reproduce the problem using the following command, but was 
> unsuccessful. Prompt me to install j1939cat and j1939acd, and there are
> some other errors.

The j1939 commands are part of the can-utils package. On Debian
compatible systems it's "sudo apt install can-utils". Or you can build
them from source: https://github.com/linux-can/can-utils

Marc

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