netdev - Re: [PATCH net-next] net/mlx5e: Fix a use after free on error in mlx5_tc_ct_shared_counter

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

Date:   Mon, 28 Sep 2020 14:55:43 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     Saeed Mahameed <saeedm@...dia.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Roi Dayan <roid@...lanox.com>, Oz Shlomo <ozsh@...lanox.com>,
        Paul Blakey <paulb@...lanox.com>,
        Eli Britstein <elibr@...lanox.com>,
        Ariel Levkovich <lariel@...dia.com>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH net-next] net/mlx5e: Fix a use after free on error in
 mlx5_tc_ct_shared_counter_get()

On Mon, Sep 28, 2020 at 12:05:56PM +0300, Dan Carpenter wrote:
> This code frees "shared_counter" and then dereferences on the next line
> to get the error code.
>
> Fixes: 1edae2335adf ("net/mlx5e: CT: Use the same counter for both directions")
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
> ---
>  drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>

Thanks,
Reviewed-by: Leon Romanovsky <leonro@...dia.com>