From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Fri, 28 Mar 2014 20:26:15 +0000 (+0400)
Subject: rtl8187: fix use after free on failure path in rtl8187_probe()
X-Git-Tag: v3.15-rc1~113^2~18^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a31267c30880ebdc73e6815f58c69a665052fab8;p=pandora-kernel.git

rtl8187: fix use after free on failure path in rtl8187_probe()

If allocation of io_dmabuf fails, rtl8187_probe() calls usb_put_dev(udev)
while usb_get_dev(udev) is not called yet. As a result refcnt is decremented
incorrectly and usb_dev can be used after memory deallocation.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

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