From b9d711c45a310cd150bddced2604a70115059c2b Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 31 Jan 2017 17:17:29 +0100 Subject: [PATCH] USB: serial: keyspan_pda: fix receive sanity checks commit c528fcb116e61afc379a2e0a0f70906b937f1e2c upstream. Make sure to check for short transfers before parsing the receive buffer to avoid acting on stale data. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reviewed-by: Greg Kroah-Hartman Signed-off-by: Johan Hovold [bwh: Backported to 3.2: - Adjust context - Keep the check for !tty in the data case] Signed-off-by: Ben Hutchings --- Reading git-format-patch failed