From: Simon Horman <horms@kernel.org>
To: Jeremy Cline <jeremy@jcline.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Lin Ma <linma@zju.edu.cn>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
syzbot+c1d0a03d305972dbbe14@syzkaller.appspotmail.com
Subject: Re: [PATCH v2 net] net: nfc: llcp: Add lock when modifying device list
Date: Sat, 30 Sep 2023 15:19:03 +0200 [thread overview]
Message-ID: <20230930131903.GA92317@kernel.org> (raw)
In-Reply-To: <20230925192351.40744-1-jeremy@jcline.org>
On Mon, Sep 25, 2023 at 03:23:51PM -0400, 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@syzkaller.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@jcline.org>
Reviewed-by: Simon Horman <horms@kernel.org>
next prev parent reply other threads:[~2023-09-30 13:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-25 19:23 [PATCH v2 net] net: nfc: llcp: Add lock when modifying device list Jeremy Cline
2023-09-30 13:19 ` Simon Horman [this message]
2023-10-03 8:01 ` Krzysztof Kozlowski
2023-10-03 15:40 ` patchwork-bot+netdevbpf
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