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

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Message-Id: <20220522005959.1175181-1-elder@linaro.org>
Date:   Sat, 21 May 2022 19:59:57 -0500
From:   Alex Elder <elder@...aro.org>
To:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com
Cc:     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: [PATCH net 0/2] net: ipa: fix page free in two spots

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.)

					-Alex

Alex Elder (2):
  net: ipa: fix page free in ipa_endpoint_trans_release()
  net: ipa: fix page free in ipa_endpoint_replenish_one()

 drivers/net/ipa/ipa_endpoint.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

-- 
2.32.0