From: Markus Metzger <markus.t.metzger@intel.com>
Date: Wed, 30 Jan 2008 12:32:03 +0000 (+0100)
Subject: x86, ptrace: add buffer size checks
X-Git-Tag: v2.6.25-rc1~1143^2~482
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cba4b65d359268c40679ca75ac92c0b93cecf6de;p=pandora-kernel.git

x86, ptrace: add buffer size checks

Pass the buffer size for (most) ptrace commands that pass user-allocated buffers and check that size before accessing the buffer. Unfortunately, PTRACE_BTS_GET already uses all 4 parameters.
Commands that access user buffers return the number of bytes or records read or written.

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

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