linux-kernel - Re: [PATCH] wifi: ath9k: hif_usb: clean up skbs if ath9k_hif_usb_rx

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Message-ID: <87h6x95huy.fsf@toke.dk>
Date:   Mon, 02 Jan 2023 11:52:05 +0100
From:   Toke Høiland-Jørgensen <toke@...e.dk>
To:     Fedor Pchelkin <pchelkin@...ras.ru>, Kalle Valo <kvalo@...nel.org>
Cc:     Fedor Pchelkin <pchelkin@...ras.ru>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Zekun Shen <bruceshenzk@...il.com>,
        Joe Perches <joe@...ches.com>,
        "John W. Linville" <linville@...driver.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Alexey Khoroshilov <khoroshilov@...ras.ru>,
        lvc-project@...uxtesting.org
Subject: Re: [PATCH] wifi: ath9k: hif_usb: clean up skbs if
 ath9k_hif_usb_rx_stream() fails

Fedor Pchelkin <pchelkin@...ras.ru> writes:

> Syzkaller detected a memory leak of skbs in ath9k_hif_usb_rx_stream().
> While processing skbs in ath9k_hif_usb_rx_stream(), the already allocated
> skbs in skb_pool are not freed if ath9k_hif_usb_rx_stream() fails. If we
> have an incorrect pkt_len or pkt_tag, the skb is dropped and all the
> associated skb_pool buffers should be cleaned, too.
>
> Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
>
> Fixes: 6ce708f54cc8 ("ath9k: Fix out-of-bound memcpy in ath9k_hif_usb_rx_stream")
> Fixes: 44b23b488d44 ("ath9k: hif_usb: Reduce indent 1 column")
> Signed-off-by: Fedor Pchelkin <pchelkin@...ras.ru>
> Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>

Is this the same issue reported in
https://lore.kernel.org/r/000000000000f3e5f805f133d3f7@google.com ?

If so, could you please tag the patch appropriately?

-Toke