linux-kernel - thinkpad_acpi: fix possible NULL pointer dereference if kstrdup for ec_version

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Message-Id: <1210930449.3812.15.camel@dhcp-lab-164.englab.brq.redhat.com>
Date:	Fri, 16 May 2008 11:34:09 +0200
From:	Jan Lieskovsky <jlieskov@...hat.com>
To:	Cyrill Gorcunov <gorcunov@...il.com>,
	Henrique de Moraes Holschuh <hmh@....eng.br>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Len Brown <len.brown@...el.com>
Cc:	linux-kernel@...r.kernel.org
Subject: thinkpad_acpi: fix possible NULL pointer dereference if kstrdup
	for ec_version_str failed

Hello guys,

  apologize for bothering you if wrong, but based on patch from Cyrill:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=90fe17f4df2f830601ffd422b11d1f7f9a9d0355

There is a potential NULL pointer dereference in thinkpad_acpi_module_exit() -- in case,
kstrdup for thinkpad_id.ec_version_str failed.

Kind regards
Jan Lieskovsky

View attachment "kstrdup_ec_version_str.patch" of type "text/x-patch" (443 bytes)