From: Markus Elfring <Markus.Elfring@web.de>
To: make24@iscas.ac.cn, linuxppc-dev@lists.ozlabs.org,
kernel-janitors@vger.kernel.org
Cc: stable@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
Aleksandr Mishin <amishin@t-argos.ru>,
Andrew Donnellan <ajd@linux.ibm.com>,
Arnd Bergmann <arnd@arndb.de>,
Frederic Barrat <fbarrat@linux.ibm.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Ian Munsie <imunsie@au1.ibm.com>,
Maxime Ripard <mripard@kernel.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Shuah Khan <shuah@kernel.org>, Wei Liu <wei.liu@kernel.org>
Subject: Re: [PATCH v4] cxl: Fix possible null pointer dereference in read_handle()
Date: Mon, 15 Jul 2024 15:18:56 +0200 [thread overview]
Message-ID: <6c50de6d-7f35-4427-bd11-5f02f5e90c08@web.de> (raw)
In-Reply-To: <20240715025442.3229209-1-make24@iscas.ac.cn>
> In read_handle(), of_get_address() may return NULL if getting address and
> size of the node failed. When of_read_number() uses prop to handle
> conversions between different byte orders, it could lead to a null pointer
> dereference. Add NULL check to fix potential issue.
>
> Found by static analysis.
>
> Cc: stable@vger.kernel.org
> Fixes: 14baf4d9c739 ("cxl: Add guest-specific code")
> Signed-off-by: Ma Ke <make24@iscas.ac.cn>
How will interests evolve for caring more according to known research
and development processes?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.10#n398
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/researcher-guidelines.rst?h=v6.10#n5
> ---
> Changes in v4:
> - modified vulnerability description according to suggestions, making the
> process of static analysis of vulnerabilities clearer. No active research
> on developer behavior.
…
Does such information indicate any communication difficulties?
Regards,
Markus
next prev parent reply other threads:[~2024-07-15 13:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-15 2:54 [PATCH v4] cxl: Fix possible null pointer dereference in read_handle() Ma Ke
2024-07-15 5:12 ` Greg KH
2024-07-15 6:28 ` Michael Ellerman
2024-07-15 17:11 ` Dan Carpenter
2024-07-16 13:27 ` Ma Ke
2024-07-19 1:23 ` Michael Ellerman
2024-07-15 13:18 ` Markus Elfring [this message]
2024-07-15 13:32 ` Greg Kroah-Hartman
2024-07-19 1:25 ` Michael Ellerman
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