]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] Fix buffer overflow in Omnikey CardMan 4040 driver (CVE-2007-0005)
authorMarcel Holtmann <marcel@holtmann.org>
Tue, 6 Mar 2007 21:12:00 +0000 (22:12 +0100)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Wed, 7 Mar 2007 02:01:04 +0000 (18:01 -0800)
commit059819a41d4331316dd8ddcf977a24ab338f4300
treef4d93f613001c195d66dffaa5b3593dcaf4e8d53
parent266d4f40370757459f8aa063976c932d0de5e59b
[PATCH] Fix buffer overflow in Omnikey CardMan 4040 driver (CVE-2007-0005)

Based on a patch from Don Howard <dhoward@redhat.com>

When calling write() with a buffer larger than 512 bytes, the
driver's write buffer overflows, allowing to overwrite the EIP and
execute arbitrary code with kernel privileges.

In read(), there exists a similar problem, but coming from the device.
A malicous or buggy device sending more than 512 bytes can overflow
of the driver's read buffer, with the same effects as above.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/char/pcmcia/cm4040_cs.c