From: Simon Horman <horms@kernel.org>
To: Abdun Nihaal <abdun.nihaal@gmail.com>
Cc: jiawenwu@trustnetic.com, mengyuanlou@net-swift.com,
andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net] net: txgbe: fix memory leak in txgbe_probe() error path
Date: Wed, 16 Apr 2025 16:23:57 +0100 [thread overview]
Message-ID: <20250416152357.GS395307@horms.kernel.org> (raw)
In-Reply-To: <20250415032910.13139-1-abdun.nihaal@gmail.com>
On Tue, Apr 15, 2025 at 08:59:09AM +0530, Abdun Nihaal wrote:
> When txgbe_sw_init() is called, memory is allocated for wx->rss_key
> in wx_init_rss_key(). However, in txgbe_probe() function, the subsequent
> error paths after txgbe_sw_init() don't free the rss_key. Fix that by
> freeing it in error path along with wx->mac_table.
>
> Also change the label to which execution jumps when txgbe_sw_init()
> fails, because otherwise, it could lead to a double free for rss_key,
> when the mac_table allocation fails in wx_sw_init().
>
> Fixes: 937d46ecc5f9 ("net: wangxun: add ethtool_ops for channel number")
> Reported-by: Jiawen Wu <jiawenwu@trustnetic.com>
> Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
next prev parent reply other threads:[~2025-04-16 15:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-15 3:29 [PATCH net] net: txgbe: fix memory leak in txgbe_probe() error path Abdun Nihaal
2025-04-15 5:55 ` Jiawen Wu
2025-04-16 15:23 ` Simon Horman [this message]
2025-04-17 1:21 ` patchwork-bot+netdevbpf
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