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(parent: a121103) | patch
i2c: fix kernel memory disclosure in dev interface
authorVlad Tsyrklevich <vlad@tsyrklevich.net>
Mon, 9 Jan 2017 15:53:36 +0000 (22:53 +0700)
committerWolfram Sang <wsa@the-dreams.de>
Thu, 12 Jan 2017 19:06:10 +0000 (20:06 +0100)
commit30f939feaeee23e21391cfc7b484f012eb189c3c
tree5eaf8a5243a0bc0dcd37f138774cbdd1d3ec41b3tree | snapshot
parenta121103c922847ba5010819a3f250f1f7fc84ab8commit | diff
i2c: fix kernel memory disclosure in dev interface

i2c_smbus_xfer() does not always fill an entire block, allowing
kernel stack memory disclosure through the temp variable. Clear
it before it's read to.

Signed-off-by: Vlad Tsyrklevich <vlad@tsyrklevich.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
drivers/i2c/i2c-dev.c diff | blob | history
Beck SC1x5 Kernel