linux-kernel - Re: [PATCH v4 2/4] uacce: fix isolate sysfs check condition

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CABQgh9FZRo=3DyuL29msbtc-=YpPVfuRzBLMWJk4s4UJgcJ-9w@mail.gmail.com>
Date: Mon, 10 Nov 2025 15:27:34 +0800
From: Zhangfei Gao <zhangfei.gao@...aro.org>
To: Chenghai Huang <huangchenghai2@...wei.com>
Cc: gregkh@...uxfoundation.org, wangzhou1@...ilicon.com, 
	linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org, 
	fanghao11@...wei.com, shenyang39@...wei.com, liulongfang@...wei.com, 
	qianweili@...wei.com, linwenkai6@...ilicon.com
Subject: Re: [PATCH v4 2/4] uacce: fix isolate sysfs check condition

On Wed, 22 Oct 2025 at 10:11, Chenghai Huang <huangchenghai2@...wei.com> wrote:
>
> uacce supports the device isolation feature. If the driver
> implements the isolate_err_threshold_read and
> isolate_err_threshold_write callback functions, uacce will create
> sysfs files now. Users can read and configure the isolation policy
> through sysfs. Currently, sysfs files are created as long as either
> isolate_err_threshold_read or isolate_err_threshold_write callback
> functions are present.
>
> However, accessing a non-existent callback function may cause the
> system to crash. Therefore, add checks before calling the
> corresponding ops.
>
> Fixes: e3e289fbc0b5 ("uacce: supports device isolation feature")
> Cc: stable@...r.kernel.org
> Signed-off-by: Chenghai Huang <huangchenghai2@...wei.com>

Acked-by: Zhangfei Gao <zhangfei.gao@...aro.org>

Thanks