linux-kernel - Re: [PATCH wireless v2] brcmfmac: fix potential memory leak in brcmf_netdev_start

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Message-ID: <9a6cb17b-b569-83e5-07e9-e2effccb63c8@broadcom.com>
Date:   Thu, 1 Dec 2022 12:09:29 +0100
From:   Arend van Spriel <arend.vanspriel@...adcom.com>
To:     Zhang Changzhong <zhangchangzhong@...wei.com>,
        Arend van Spriel <aspriel@...il.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Kalle Valo <kvalo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Pieter-Paul Giesberts <pieter-paul.giesberts@...adcom.com>
Cc:     linux-wireless@...r.kernel.org,
        brcm80211-dev-list.pdl@...adcom.com,
        SHA-cyfmac-dev-list@...ineon.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH wireless v2] brcmfmac: fix potential memory leak in
 brcmf_netdev_start_xmit()

On 11/17/2022 12:33 PM, 'Zhang Changzhong' via BRCM80211-DEV-LIST,PDL wrote:
> The brcmf_netdev_start_xmit() returns NETDEV_TX_OK without freeing skb
> in case of pskb_expand_head() fails, add dev_kfree_skb() to fix it.
> Compile tested only.
> 
> Fixes: 270a6c1f65fe ("brcmfmac: rework headroom check in .start_xmit()")
Reviewed-by: Arend van Spriel <arend.vanspriel@...adcom.com>
> Signed-off-by: Zhang Changzhong <zhangchangzhong@...wei.com>
> ---
> v1->v2: add "Compile tested only" to commit log
> 
>   drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c | 1 +
>   1 file changed, 1 insertion(+)

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