[Oraclevm-errata] OVMBA-2021-0017 Oracle VM 3 Extended Lifecycle Support (ELS) Unbreakable Enterprise kernel bug fix update

[Errata Announcements for Oracle VM]

Oracle VM Bug Fix Advisory OVMBA-2021-0017

The following updated rpms for Oracle VM 3 Extended Lifecycle Support (ELS) have been uploaded to the Unbreakable Linux Network:

x86_64:
kernel-uek-4.1.12-124.51.2.el6uek.x86_64.rpm
kernel-uek-firmware-4.1.12-124.51.2.el6uek.noarch.rpm





Description of changes:

[4.1.12-124.51.2.el6uek]
- IB/ipoib: Improve latency in ipoib/cm connection formation (Manjunath Patil)  [Orabug: 32219842]
- mm: madv_doexec_flag sysctl (Anthony Yznaga)  [Orabug: 32387889]
- mm: introduce MADV_DOEXEC (Anthony Yznaga)  [Orabug: 32387889]
- exec, elf: require opt-in for accepting preserved mem (Anthony Yznaga)  [Orabug: 32387889]
- mm: introduce VM_EXEC_KEEP (Anthony Yznaga)  [Orabug: 32387889]
- mm: fail exec if stack expansion will overlap another vma (Anthony Yznaga)  [Orabug: 32387889]
- mm: do not assume only the stack vma exists in setup_arg_pages() (Anthony Yznaga)  [Orabug: 32387889]
- ELF: when loading PIE binaries check for overlap with existing mappings (Anthony Yznaga)  [Orabug: 32387889]

[4.1.12-124.51.1.el6uek]
- tcp: grow window for OOO packets only for SACK flows (Eric Dumazet)  [Orabug: 30804714]