linux-kernel - Re: [v3] thunderbolt: Fix to check the return value of kmemdup

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]

Message-ID: <f2960ada-7e06-33d1-1533-78989a3e1d2a@web.de>
Date:   Fri, 11 Oct 2019 15:00:13 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Aditya Pakki <pakki001@....edu>,
        Andreas Noever <andreas.noever@...il.com>,
        Kangjie Lu <kjlu@....edu>,
        Michael Jamet <michael.jamet@...el.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Yehezkel Bernat <YehezkelShB@...il.com>,
        kernel-janitors@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [v3] thunderbolt: Fix to check the return value of kmemdup

> uuid in add_switch is allocted via kmemdup which can fail.

I have tried another script for the semantic patch language out.
This source code analysis approach points out that the implementation
of the function “icm_handle_event” contains still an unchecked call
of the function “kmemdup”.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/thunderbolt/icm.c?id=3cdb9446a117d5d63af823bde6fe6babc312e77b#n1627
https://elixir.bootlin.com/linux/v5.4-rc2/source/drivers/thunderbolt/icm.c#L1627

How do you think about to improve it?

Regards,
Markus