Unbreakable Enterprise kernel security update

[2.6.39-400.293.1]

• logging errors that get masked to EIO inside drivers/block/loop.c (Manjunath Patil) [Orabug: 21962821]
• sched/core: Clear the root_domain cpumasks in init_rootdomain() (Xunlei Pang) [Orabug: 23518650]
• bio allocation failure due to bio_get_nr_vecs() (Darrick J. Wong) [Orabug: 23852442]
• mlx4: avoid ABBA deadlock (Wengang Wang) [Orabug: 23538548]
• mlx4: avoid multiple free on id_map_ent (Wengang Wang) [Orabug: 25022815]
• sctp: validate chunk len before actually using it (Marcelo Ricardo Leitner) [Orabug: 25142906] {CVE-2016-9555}
  [2.6.39-400.292.1]
• NVMe: reduce queue depth as workaround for Samsung EPIC SQ errata (Ashok Vairavan) [Orabug: 25138146]
  [2.6.39-400.291.1]
• RDS: Drop the connection as part of cancel to avoid hangs (Avinash Repaka) [Orabug: 24951873]