Array index error in the logi_dj_raw_event function in drivers/hid/hid-logitech-dj.c in the Linux kernel before 3.16.2 allows physically proximate attackers to execute arbitrary code or cause a denial of service (invalid kfree) via a crafted device that provides a malformed REPORT_TYPE_NOTIF_DEVICE_UNPAIRED value.
https://github.com/torvalds/linux/commit/ad3e14d7c5268c2e24477c6ef54bbdf88add5d36
https://code.google.com/p/google-security-research/issues/detail?id=89
https://bugzilla.redhat.com/show_bug.cgi?id=1141210
http://www.securityfocus.com/bid/69770
http://www.openwall.com/lists/oss-security/2014/09/11/21
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2