linux-kernel - RE: [PATCH 5.4 2/5] cifs: Get rid of kstrdup

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:   Sun, 25 Jun 2023 15:38:37 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Rishabh Bhatnagar' <risbhat@...zon.com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "pc@....nz" <pc@....nz>
CC:     "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-cifs@...r.kernel.org" <linux-cifs@...r.kernel.org>,
        Aurelien Aptel <aaptel@...e.com>,
        Steve French <stfrench@...rosoft.com>
Subject: RE: [PATCH 5.4 2/5] cifs: Get rid of kstrdup_const()'d paths

From: Rishabh Bhatnagar
> Sent: 23 June 2023 22:34
> From: "Paulo Alcantara (SUSE)" <pc@....nz>
> 
> commit 199c6bdfb04b71d88a7765e08285885fbca60df4 upstream.
> 
> The DFS cache API is mostly used with heap allocated strings.
> 
...
> -	ce->path = kstrdup_const(path, GFP_KERNEL);
> +	ce->path = kstrndup(path, strlen(path), GFP_KERNEL);

That is entirely brain-dead.

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)