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Message-ID: <1308760683.10423.16.camel@Joe-Laptop> Date: Wed, 22 Jun 2011 09:38:03 -0700 From: Joe Perches <joe@...ches.com> To: Vasiliy Kulikov <segoon@...nwall.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, James Morris <jmorris@...ei.org>, Ingo Molnar <mingo@...e.hu>, Namhyung Kim <namhyung@...il.com>, Greg Kroah-Hartman <gregkh@...e.de>, kernel-hardening@...ts.openwall.com, linux-kernel@...r.kernel.org, security@...nel.org Subject: Re: [PATCH] kernel: escape non-ASCII and control characters in printk() 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?
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