linux-kernel - Re: [PATCH] viacam: Don't explode if pci_find

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]

Date:	Tue, 5 Jul 2011 08:08:55 -0600
From:	Jonathan Corbet <corbet@....net>
To:	Jesper Juhl <jj@...osbits.net>
Cc:	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
	Mauro Carvalho Chehab <mchehab@...radead.org>
Subject: Re: [PATCH] viacam: Don't explode if pci_find_bus() returns NULL

On Sun, 3 Jul 2011 09:54:12 +0200 (CEST)
Jesper Juhl <jj@...osbits.net> wrote:

> In the unlikely case that pci_find_bus() should return NULL
> viacam_serial_is_enabled() is going to dereference a NULL pointer and
> blow up. Better safe than sorry, so be defensive and check the
> pointer.

Extremely unlikely - that function is only called on a single architecture
where the bus is known to exist.  Still, no harm can come from checking.

Acked-by: Jonathan Corbet <corbet@....net>

Thanks,

jon
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/