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(parent: f52a119) | 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)
committerJiri Slaby <jslaby@suse.cz>
Thu, 26 Jan 2017 16:40:41 +0000 (17:40 +0100)
commit142088b084b05f9cfe68ee3e433e738016e3c0e5
treea2edc6b6e8502216379d4593a3a1ec6a728c5b50tree | snapshot
parentf52a119f6cfaa3b2ac0812459326e768c6076846commit | diff
i2c: fix kernel memory disclosure in dev interface

commit 30f939feaeee23e21391cfc7b484f012eb189c3c upstream.

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>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
drivers/i2c/i2c-dev.c diff | blob | history
wrapfs-5.3.y