From: Alexander Aring <alex.aring@gmail.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Stefan Schmidt <stefan@datenfreihafen.org>,
linux-wpan - ML <linux-wpan@vger.kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
"open list:NETWORKING [GENERAL]" <netdev@vger.kernel.org>,
Xue Liu <liuxuenetmail@gmail.com>,
Marcel Holtmann <marcel@holtmann.org>,
Harry Morris <harrymorris12@gmail.com>,
David Girault <david.girault@qorvo.com>,
Romuald Despres <romuald.despres@qorvo.com>,
Frederic Blain <frederic.blain@qorvo.com>,
Nicolas Schodet <nico@ni.fr.eu.org>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: Re: [wpan-next v2 4/9] net: ieee802154: at86rf230: Stop leaking skb's
Date: Sun, 23 Jan 2022 15:43:21 -0500 [thread overview]
Message-ID: <CAB_54W721DFUw+qu6_UR58GFvjLxshmxiTE0DX-DNNY-XLskoQ@mail.gmail.com> (raw)
In-Reply-To: <20220120112115.448077-5-miquel.raynal@bootlin.com>
Hi,
On Thu, 20 Jan 2022 at 06:21, Miquel Raynal <miquel.raynal@bootlin.com> wrote:
>
> Upon error the ieee802154_xmit_complete() helper is not called. Only
> ieee802154_wake_queue() is called manually. We then leak the skb
> structure.
>
> Free the skb structure upon error before returning.
>
> There is no Fixes tag applying here, many changes have been made on this
> area and the issue kind of always existed.
>
> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
> ---
> drivers/net/ieee802154/at86rf230.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
> index 7d67f41387f5..0746150f78cf 100644
> --- a/drivers/net/ieee802154/at86rf230.c
> +++ b/drivers/net/ieee802154/at86rf230.c
> @@ -344,6 +344,7 @@ at86rf230_async_error_recover_complete(void *context)
> kfree(ctx);
>
> ieee802154_wake_queue(lp->hw);
> + dev_kfree_skb_any(lp->tx_skb);
as I said in other mails there is more broken, we need a:
if (lp->is_tx) {
ieee802154_wake_queue(lp->hw);
dev_kfree_skb_any(lp->tx_skb);
lp->is_tx = 0;
}
in at86rf230_async_error_recover().
Thanks.
- Alex
next prev parent reply other threads:[~2022-01-23 20:43 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-20 11:21 [wpan-next v2 0/9] ieee802154: A bunch of fixes Miquel Raynal
2022-01-20 11:21 ` [wpan-next v2 1/9] net: ieee802154: hwsim: Ensure proper channel selection at probe time Miquel Raynal
2022-01-23 7:29 ` [net] 98ccce2328: WARNING:suspicious_RCU_usage kernel test robot
2022-01-23 20:34 ` [wpan-next v2 1/9] net: ieee802154: hwsim: Ensure proper channel selection at probe time Alexander Aring
2022-01-25 10:40 ` Miquel Raynal
2022-01-20 11:21 ` [wpan-next v2 2/9] net: ieee802154: hwsim: Ensure frame checksum are valid Miquel Raynal
2022-01-20 11:21 ` [wpan-next v2 3/9] net: ieee802154: mcr20a: Fix lifs/sifs periods Miquel Raynal
2022-01-21 16:01 ` Stefan Schmidt
2022-01-20 11:21 ` [wpan-next v2 4/9] net: ieee802154: at86rf230: Stop leaking skb's Miquel Raynal
2022-01-23 20:43 ` Alexander Aring [this message]
2022-01-23 20:59 ` Alexander Aring
2022-01-23 22:41 ` Alexander Aring
2022-01-23 23:14 ` Alexander Aring
2022-01-25 10:58 ` Miquel Raynal
2022-01-20 11:21 ` [wpan-next v2 5/9] net: ieee802154: ca8210: " Miquel Raynal
2022-01-23 21:00 ` Alexander Aring
2022-01-20 11:21 ` [wpan-next v2 6/9] net: ieee802154: Use the IEEE802154_MAX_PAGE define when relevant Miquel Raynal
2022-01-21 16:00 ` Stefan Schmidt
2022-01-23 20:44 ` Alexander Aring
2022-01-24 8:06 ` Stefan Schmidt
2022-01-25 11:10 ` Miquel Raynal
2022-01-20 11:21 ` [wpan-next v2 7/9] net: ieee802154: Return meaningful error codes from the netlink helpers Miquel Raynal
2022-01-20 11:21 ` [wpan-next v2 8/9] net: mac802154: Explain the use of ieee802154_wake/stop_queue() Miquel Raynal
2022-01-23 20:56 ` Alexander Aring
2022-01-25 11:32 ` Miquel Raynal
2022-01-20 11:21 ` [wpan-next v2 9/9] MAINTAINERS: Remove Harry Morris bouncing address Miquel Raynal
2022-01-20 22:52 ` [wpan-next v2 0/9] ieee802154: A bunch of fixes Alexander Aring
2022-01-20 23:07 ` Alexander Aring
2022-01-21 8:27 ` Miquel Raynal
2022-01-21 12:48 ` Stefan Schmidt
2022-01-25 9:51 ` Miquel Raynal
2022-01-21 16:09 ` Stefan Schmidt
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