From: "Toke Høiland-Jørgensen" <toke@toke.dk>
To: Fedor Pchelkin <pchelkin@ispras.ru>, Kalle Valo <kvalo@kernel.org>
Cc: Fedor Pchelkin <pchelkin@ispras.ru>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Sujith <Sujith.Manoharan@atheros.com>,
"John W. Linville" <linville@tuxdriver.com>,
Vasanthakumar Thiagarajan <vasanth@atheros.com>,
Senthil Balasubramanian <senthilkumar@atheros.com>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
Alexey Khoroshilov <khoroshilov@ispras.ru>,
lvc-project@linuxtesting.org,
syzbot+e008dccab31bd3647609@syzkaller.appspotmail.com,
syzbot+6692c72009680f7c4eb2@syzkaller.appspotmail.com
Subject: Re: [PATCH v4] wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function
Date: Wed, 04 Jan 2023 15:47:26 +0100 [thread overview]
Message-ID: <87wn621hmp.fsf@toke.dk> (raw)
In-Reply-To: <20230104123546.51427-1-pchelkin@ispras.ru>
Fedor Pchelkin <pchelkin@ispras.ru> writes:
> It is stated that ath9k_htc_rx_msg() either frees the provided skb or
> passes its management to another callback function. However, the skb is
> not freed in case there is no another callback function, and Syzkaller was
> able to cause a memory leak. Also minor comment fix.
>
> Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
>
> Fixes: fb9987d0f748 ("ath9k_htc: Support for AR9271 chipset.")
> Reported-by: syzbot+e008dccab31bd3647609@syzkaller.appspotmail.com
> Reported-by: syzbot+6692c72009680f7c4eb2@syzkaller.appspotmail.com
> Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
> Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
next prev parent reply other threads:[~2023-01-04 14:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-28 22:40 [PATCH] wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function Fedor Pchelkin
2023-01-03 14:32 ` [PATCH v2] " Fedor Pchelkin
2023-01-03 21:04 ` Toke Høiland-Jørgensen
2023-01-03 22:48 ` Fedor Pchelkin
2023-01-04 12:15 ` [PATCH v3] " Fedor Pchelkin
2023-01-04 12:25 ` Toke Høiland-Jørgensen
2023-01-04 12:35 ` [PATCH v4] " Fedor Pchelkin
2023-01-04 14:47 ` Toke Høiland-Jørgensen [this message]
2023-01-17 11:52 ` Kalle Valo
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