From: Joe Perches <joe@perches.com>
To: Vasiliy Kulikov <segoon@openwall.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
James Morris <jmorris@namei.org>, Ingo Molnar <mingo@elte.hu>,
Namhyung Kim <namhyung@gmail.com>,
Greg Kroah-Hartman <gregkh@suse.de>,
kernel-hardening@lists.openwall.com,
linux-kernel@vger.kernel.org, security@kernel.org
Subject: Re: [PATCH] kernel: escape non-ASCII and control characters in printk()
Date: Wed, 22 Jun 2011 09:38:03 -0700 [thread overview]
Message-ID: <1308760683.10423.16.camel@Joe-Laptop> (raw)
In-Reply-To: <20110622095341.GA3353@albatros>
On Wed, 2011-06-22 at 13:53 +0400, Vasiliy Kulikov wrote:
> This patch escapes all characters outside of allowed '\n' plus 0x20-0x7E
> charset passed to printk().
[]
> diff --git a/kernel/printk.c b/kernel/printk.c
[]
> +static void emit_log_char_escaped(char c)
> +{
> + char buffer[8];
> + int i, len;
> +
> + if ((c >= ' ' && c < 127) || c == '\n')
if (isprint(c))
Why not add this to emit_log_char?
next prev parent reply other threads:[~2011-06-22 16:38 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-22 9:53 [PATCH] kernel: escape non-ASCII and control characters in printk() Vasiliy Kulikov
2011-06-22 15:37 ` Greg KH
2011-06-22 16:13 ` Vasiliy Kulikov
2011-06-23 13:36 ` Matthew Garrett
2011-06-23 21:44 ` Greg KH
2011-07-11 6:37 ` Pavel Machek
2011-06-22 16:38 ` Joe Perches [this message]
2011-06-22 16:53 ` Vasiliy Kulikov
2011-06-22 17:14 ` Joe Perches
2011-06-22 17:48 ` Vasiliy Kulikov
2011-06-22 18:10 ` Alan Cox
2011-06-22 19:07 ` Vasiliy Kulikov
2011-06-23 18:11 ` Geert Uytterhoeven
2011-06-25 20:52 ` [Security] " Willy Tarreau
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