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Message-ID: <97b315cb-b998-4da9-a302-063808b064ad@linaro.org>
Date: Tue, 3 Oct 2023 10:01:04 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Jeremy Cline <jeremy@...ine.org>
Cc: "David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, Lin Ma <linma@....edu.cn>,
Simon Horman <horms@...nel.org>, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org,
syzbot+c1d0a03d305972dbbe14@...kaller.appspotmail.com
Subject: Re: [PATCH v2 net] net: nfc: llcp: Add lock when modifying device
list
On 25/09/2023 21:23, Jeremy Cline wrote:
> The device list needs its associated lock held when modifying it, or the
> list could become corrupted, as syzbot discovered.
>
> Reported-and-tested-by: syzbot+c1d0a03d305972dbbe14@...kaller.appspotmail.com
> Closes: https://syzkaller.appspot.com/bug?extid=c1d0a03d305972dbbe14
> Fixes: 6709d4b7bc2e ("net: nfc: Fix use-after-free caused by nfc_llcp_find_local")
> Signed-off-by: Jeremy Cline <jeremy@...ine.org>
> ---
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Best regards,
Krzysztof
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