[PATCH 4.14 30/43] net: Only honor ifindex in IP_PKTINFO if non-0

4.14-stable review patch. If anyone has any objections, please let me know. -- From: David Ahern [ Upstream commit 2cbb4ea7de167b02ffa63e9cdfdb07a7e7094615 ] Only allow ifindex from IP_PKTINFO to override SO_BINDTODEVICE settings if the index is actually

[PATCH 4.14 30/43] net: Only honor ifindex in IP_PKTINFO if non-0

4.14-stable review patch. If anyone has any objections, please let me know. -- From: David Ahern [ Upstream commit 2cbb4ea7de167b02ffa63e9cdfdb07a7e7094615 ] Only allow ifindex from IP_PKTINFO to override SO_BINDTODEVICE settings if the index is actually set in the message.