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si2157: Bounds check firmware
authorLaura Abbott <labbott@fedoraproject.org>
Wed, 30 Sep 2015 00:10:10 +0000 (21:10 -0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 9 Nov 2015 22:37:31 +0000 (14:37 -0800)
commit29a3e36836ba839cd46c36a0b0931064f01fc6c7
tree408025fb43b2cef6e780eb06a3a9d9ee28317df0tree
parentc8b0abcf958e1cfeeb8f289e6755aafab74806c6commit | diff
si2157: Bounds check firmware

commit a828d72df216c36e9c40b6c24dc4b17b6f7b5a76 upstream.

When reading the firmware and sending commands, the length
must be bounds checked to avoid overrunning the size of the command
buffer and smashing the stack if the firmware is not in the
expected format. Add the proper check.

Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/media/tuners/si2157.c diff | blob | blame | history
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