[El-errata] ELSA-2018-4025 Important: Oracle Linux 6 Unbreakable Enterprise kernel security update

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Wed Feb 7 14:44:35 PST 2018

Oracle Linux Security Advisory ELSA-2018-4025


The following updated rpms for Oracle Linux 6 have been uploaded to the 
Unbreakable Linux Network:



Description of changes:

- drivers/char/mem.c: deny access in open operation when securelevel is 
set (Ethan Zhao)  [Orabug: 27234850] [Orabug: 27234850]
- hugetlb: fix nr_pmds accounting with shared page tables (Kirill A. 
Shutemov)  [Orabug: 26988581]
- x86/IBRS: Drop unnecessary WRITE_ONCE (Boris Ostrovsky)  [Orabug: 
- x86/IBRS: Don't try to change IBRS mode if IBRS is not available 
(Boris Ostrovsky)  [Orabug: 27416198]
- x86/IBRS: Remove support for IBRS_ENABLED_USER mode (Boris Ostrovsky) 
[Orabug: 27416198]
- x86: Include linux/device.h in bugs_64.c (Boris Ostrovsky)  [Orabug: 
- x86/spectre: Drop the warning about ibrs being obsolete. (Konrad 
Rzeszutek Wilk)
- x86/spec: Don't print the Missing arguments for option spectre_v2. 
(Konrad Rzeszutek Wilk)
- x86/spec: Also print IBRS if IBPB is disabled. (Konrad Rzeszutek Wilk)
- x86/IBPB: Provide debugfs interface for changing IBPB mode (Boris 
Ostrovsky)  [Orabug: 27449065]
- xen: Make PV Dom0 Linux kernel NUMA aware (Elena Ufimtseva)
- net/rds: Fix incorrect error handling (Håkon Bugge)  [Orabug: 26848729]
- net/rds: use multiple sge than buddy allocation in congestion code 
(Wei Lin Guay)  [Orabug: 26848729]
- Revert "RDS: fix the sg allocation based on actual message size" (Wei 
Lin Guay)  [Orabug: 26848729]
- Revert "RDS: avoid large pages for sg allocation for TCP transport" 
(Wei Lin Guay)  [Orabug: 26848729]
- Revert "net/rds: Reduce memory footprint in rds_sendmsg" (Wei Lin 
Guay)  [Orabug: 26848729]
- net/rds: reduce memory footprint during ib_post_recv in IB transport 
(Wei Lin Guay)  [Orabug: 26848729]
- net/rds: reduce memory footprint during rds_sendmsg with IB transport 
(Wei Lin Guay)  [Orabug: 26848729]
- net/rds: set the rds_ib_init_frag based on supported sge (Wei Lin 
Guay)  [Orabug: 26848729]
- bnxt_en: Fix possible corrupted NVRAM parameters from firmware 
response. (Michael Chan)  [Orabug: 27199588]
- x86, kasan: Fix build failure on KASAN=y && KMEMCHECK=y kernels 
(Andrey Ryabinin)  [Orabug: 27255122]
- x86, efi, kasan: Fix build failure on !KASAN && KMEMCHECK=y kernels 
(Andrey Ryabinin)  [Orabug: 27255122]
- x86, efi, kasan: #undef memset/memcpy/memmove per arch (Andrey 
Ryabinin)  [Orabug: 27255122]
- Revert "Makefile: Build with -Werror=date-time if the compiler 
supports it" (Gayatri Vasudevan)  [Orabug: 27255122]
- dccp: CVE-2017-8824: use-after-free in DCCP code (Mohamed Ghannam) 
[Orabug: 27290300]  {CVE-2017-8824}
- x86/efi: Initialize and display UEFI secure boot state a bit later 
during init (Daniel Kiper)  [Orabug: 27309477]
- x86/espfix: Init espfix on the boot CPU side (Zhu Guihua)  [Orabug: 
- x86/espfix: Add 'cpu' parameter to init_espfix_ap() (Zhu Guihua) 
[Orabug: 27344552]
- ALSA: pcm: prevent UAF in snd_pcm_info (Robb Glasser)  [Orabug: 
27344841]  {CVE-2017-0861} {CVE-2017-0861}
- fs/ocfs2: remove page cache for converted direct write (Wengang Wang)
- Revert "ocfs2: code clean up for direct io" (Wengang Wang)
- assoc_array: Fix a buggy node-splitting case (David Howells)  [Orabug: 
27364592]  {CVE-2017-12193} {CVE-2017-12193}
- Sanitize 'move_pages()' permission checks (Linus Torvalds)  [Orabug: 
27364690]  {CVE-2017-14140}
- pti: compile fix for when PTI is disabled (Pavel Tatashin)  [Orabug: 
27383147]  {CVE-2017-5754}
- sctp: do not peel off an assoc from one netns to another one (Xin 
Long)  [Orabug: 27386999]  {CVE-2017-15115}
- net: ipv4: fix for a race condition in raw_sendmsg (Mohamed Ghannam) 
[Orabug: 27390682]  {CVE-2017-17712}
- mlx4: add mstflint secure boot access kernel support (Qing Huang) 
[Orabug: 27404202]
- x86: Move STUFF_RSB in to the idt macro (Konrad Rzeszutek Wilk)
- x86/spec: STUFF_RSB _before_ ENABLE_IBRS (Konrad Rzeszutek Wilk)
- x86: Move ENABLE_IBRS in the interrupt macro. (Konrad Rzeszutek Wilk) 
[Orabug: 27449045]

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