linux-kernel - Re: [PATCH v5] kobject: Fix global-out-of-bounds in kobject_action

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

Date:   Wed, 17 May 2023 16:54:22 +0800
From:   Xia Fukun <xiafukun@...wei.com>
To:     Peter Rajnoha <prajnoha@...hat.com>
CC:     <linux-kernel@...r.kernel.org>, <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v5] kobject: Fix global-out-of-bounds in
 kobject_action_type()

在 2023/5/16 22:02, Peter Rajnoha wrote:
> On 5/16/23 14:37, Xia Fukun wrote:

>> ---
>> v4 -> v5:
>> - Fixed build errors and warnings, and retested the patch.
>>
> 
> Please, also check this is still working:
> https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-uevent
> 
> When I try passing the example line "add
> fe4d7c9d-b8c6-4a70-9ef1-3d8a58d18eed A=1 B=abc", it doesn't recognize
> such input anymore and it incorrectly considers it as erroneous.
> 

Why did I receive the following error message when passing the example
line "add fe4d7c9d-b8c6-4a70-9ef1-3d8a58d18eed A=1 B=abc" using the
original mainline code?

synth uevent: /devices/virtual/block/ram12: incorrect uevent action arguments
block ram12: uevent: failed to send synthetic uevent: -22

Is there a problem with my test case, or is the original code unable
to successfully parse the sample?