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From: Leon Romanovsky <leon@kernel.org>
To: Wentao Liang <vulab@iscas.ac.cn>
Cc: benve@cisco.com, dledford@redhat.com, jgg@ziepe.ca,
	linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org,
	monis@mellanox.com, selvin.xavier@broadcom.com,
	yuval.shaia@oracle.com, stable@vger.kernel.org
Subject: Re: [PATCH 2/5] RDMA/core: Fix netdev use-after-free in ib_get_eth_speed()
Date: Tue, 22 Sep 2026 17:25:20 +0300	[thread overview]
Message-ID: <20260922142520.GK563127@unreal> (raw)
In-Reply-To: <20260916183306.2092381-1-vulab@iscas.ac.cn>

On Wed, Sep 16, 2026 at 06:33:06PM +0000, Wentao Liang wrote:
> The device reference is dropped before netdev->name is read in the
> warning emitted when __ethtool_get_link_ksettings() fails.  If that was
> the last reference the name is read from a freed netdev.
> 
> Move dev_put() below the last use of netdev.
> 
> Fixes: d41861942fc5 ("IB/core: Add generic function to extract IB speed from netdev")
> Cc: stable@vger.kernel.org
> Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
> ---
>  drivers/infiniband/core/verbs.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

We already accepted this patch
https://patchwork.kernel.org/project/linux-rdma/patch/20260812081708.32468-1-krystianmkaniewski@gmail.com/

Thanks

      reply	other threads:[~2026-09-22 14:25 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-16 18:33 Wentao Liang
2026-09-22 14:25 ` Leon Romanovsky [this message]

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