An unbreakable Enterprise kernel bug fix update has been released for Oracle Linux 7.

El-errata: ELBA-2021-9270 Oracle Linux 7 Unbreakable Enterprise kernel bug fix update

Oracle Linux Bug Fix Advisory ELBA-2021-9270

  http://linux.oracle.com/errata/ELBA-2021-9270.html

The following updated rpms for Oracle Linux 7 have been uploaded to the Unbreakable Linux Network:

x86_64:
kernel-uek-doc-4.1.12-124.51.2.el7uek.noarch.rpm
kernel-uek-firmware-4.1.12-124.51.2.el7uek.noarch.rpm
kernel-uek-4.1.12-124.51.2.el7uek.x86_64.rpm
kernel-uek-devel-4.1.12-124.51.2.el7uek.x86_64.rpm
kernel-uek-debug-4.1.12-124.51.2.el7uek.x86_64.rpm
kernel-uek-debug-devel-4.1.12-124.51.2.el7uek.x86_64.rpm

SRPMS:
  http://oss.oracle.com/ol7/SRPMS-updates/kernel-uek-4.1.12-124.51.2.el7uek.src.rpm


Description of changes:

[4.1.12-124.51.2.el7uek]
- 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.el7uek]
- tcp: grow window for OOO packets only for SACK flows (Eric Dumazet) [Orabug: 30804714]