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HID: hiddev: validate num_values for HIDIOCGUSAGES, HIDIOCSUSAGES commands
authorScott Bauer <sbauer@plzdonthack.me>
Thu, 23 Jun 2016 14:59:47 +0000 (08:59 -0600)
committerBen Hutchings <ben@decadent.org.uk>
Mon, 22 Aug 2016 21:37:16 +0000 (22:37 +0100)
commit 93a2001bdfd5376c3dc2158653034c20392d15c5 upstream.

This patch validates the num_values parameter from userland during the
HIDIOCGUSAGES and HIDIOCSUSAGES commands. Previously, if the report id was set
to HID_REPORT_ID_UNKNOWN, we would fail to validate the num_values parameter
leading to a heap overflow.

Signed-off-by: Scott Bauer <sbauer@plzdonthack.me>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
drivers/hid/usbhid/hiddev.c patch | blob | history

diff --cc drivers/hid/usbhid/hiddev.c
Simple merge
Pandora Kernel Repository