linux-kernel - Re: [PATCH net 0/2] net: ipa: fix page free in two spots

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Date:   Sun, 22 May 2022 21:00:42 +0100 (BST)
From:   David Miller <davem@...emloft.net>
To:     elder@...aro.org
Cc:     edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        mka@...omium.org, evgreen@...omium.org, bjorn.andersson@...aro.org,
        quic_cpratapa@...cinc.com, quic_avuyyuru@...cinc.com,
        quic_jponduru@...cinc.com, quic_subashab@...cinc.com,
        elder@...nel.org, netdev@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net 0/2] net: ipa: fix page free in two spots

From: Alex Elder <elder@...aro.org>
Date: Sat, 21 May 2022 19:59:57 -0500

> When a receive buffer is not wrapped in an SKB and passed to the
> network stack, the (compound) page gets freed within the IPA driver.
> This is currently quite rare.
> 
> The pages are freed using __free_pages(), but they should instead be
> freed using page_put().  This series fixes this, in two spots.
> 
> These patches work for Linux v5.18-rc7 and v5.17.y, but won't apply
> cleanly to earlier stable branches.  (Nevertheless, the fix is
> trivial.)

This does not apply to the current net tree, please respin.

Thank you.