linux-kernel - Re: [PATCH net] net: hns3: fix double free issue for tx spare buffer

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Message-ID: <20260203183816.3bb02543@kernel.org>
Date: Tue, 3 Feb 2026 18:38:16 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Jijie Shao <shaojijie@...wei.com>
Cc: <davem@...emloft.net>, <edumazet@...gle.com>, <pabeni@...hat.com>,
 <andrew+netdev@...n.ch>, <horms@...nel.org>, <shenjian15@...wei.com>,
 <liuyonglong@...wei.com>, <chenhao418@...wei.com>, <lantao5@...wei.com>,
 <huangdonghua3@...artners.com>, <yangshuaisong@...artners.com>,
 <jonathan.cameron@...wei.com>, <salil.mehta@...wei.com>,
 <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net] net: hns3: fix double free issue for tx spare
 buffer

On Mon, 2 Feb 2026 18:58:37 +0800 Jijie Shao wrote:
> The driver missed to clear ring->tx_spare to NULL when
> fail to initialize tx spare buffer. And it will try to
> free the tx spare buffer in hns3_fini_ring() if tx_spare
> is not NULL. So it may cause double free issue.

Please update this commit message so that reviewers don't have 
to do as much research.