From: Aleksandr Nogikh <nogikh@google.com>
To: Abagail ren <renzezhongucas@gmail.com>
Cc: krzysztof.kozlowski@linaro.org, davem@davemloft.net,
edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
syzkaller@googlegroups.com, Dmitry Vyukov <dvyukov@google.com>
Subject: Re: KASAN: slab-use-after-free Read in nfc_llcp_unregister_device
Date: Wed, 25 Oct 2023 09:12:20 +0200 [thread overview]
Message-ID: <CANp29Y5duVTxPyB=O+nyi8r68iebvEQmcCGOapL5b8Qpym8keQ@mail.gmail.com> (raw)
In-Reply-To: <CALkECRjyG8AtbUunWFYErQethdyCfiNC2-ZHP6oVtO3+GHxahA@mail.gmail.com>
Hi,
Please also note this report by syzbot:
https://syzkaller.appspot.com/bug?extid=81232c4a81a886e2b580
Its title is a bit different, but the stacktraces are the same. At the
bottom, you may also find KASAN crashes.
Judging by the "Discussions" block, there've been a couple of fix
attempts already, but they did not make it to the kernel.
--
Aleksandr
On Wed, Oct 25, 2023 at 9:03 AM Abagail ren <renzezhongucas@gmail.com> wrote:
>
> Good day, dear maintainers.
>
> Since the email system replied that it refused to accept the email because the text contained HTML, I sent it to you again in the form of shared files.
>
> We found a bug using a modified kernel configuration file used by syzbot.
>
> We enhanced the probability of vulnerability discovery using our prototype system developed based on syzkaller and found a bug "' KASAN: slab-use-after-free Read in nfc_llcp_unregister_device." I'm still working on it to find out its root cause and availability.
>
> The stack information: https://docs.google.com/document/d/1gdHebCRsvVsSPKfilcoXVu3Pctvoj2FSZCACcVYZXns/edit?usp=sharing
>
> Kernel Branch: 6.4.0-rc3
>
> Kernel Config: https://docs.google.com/document/d/1WIM0btqS2dex18HQYaL2xyoW6WdX2TsaNguTnWzHMps/edit?usp=sharing
>
> Reproducer: https://docs.google.com/document/d/1LrgGdOgZwO8wz0opusZ7flP9QSFZa32GdozvoxGysyY/edit?usp=sharing
>
> Thank you!
>
> Best regards,
> Ren Zezhong
>
> --
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> To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller/CALkECRjyG8AtbUunWFYErQethdyCfiNC2-ZHP6oVtO3%2BGHxahA%40mail.gmail.com.
next parent reply other threads:[~2023-10-25 7:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CALkECRjyG8AtbUunWFYErQethdyCfiNC2-ZHP6oVtO3+GHxahA@mail.gmail.com>
2023-10-25 7:12 ` Aleksandr Nogikh [this message]
2023-10-25 7:23 ` KASAN: slab-use-after-free Read in nfc_llcp_unregister_device Krzysztof Kozlowski
2023-10-25 4:14 Abagail ren
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