[LU-11255] kernel update [SLES12 SP3 4.4.143-94.47.1]

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.12.0, Lustre 2.10.6
• Severity: 3
• Assignee: Jian Yu
• Reporter: Jian Yu

Description

The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.143-94.47.1 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-5390 aka "SegmentSmack": Linux kernel could be forced to make
  very expensive calls to tcp_collapse_ofo_queue() and
  tcp_prune_ofo_queue() for every incoming packet which can lead to a
  denial of service (bnc#1102340).
• CVE-2018-14734: drivers/infiniband/core/ucma.c in the Linux kernel
  allowed ucma_leave_multicast to access a certain data structure after a
  cleanup step in ucma_process_join, which allowed attackers to cause a
  denial of service (use-after-free) (bnc#1103119).
• CVE-2017-18344: The timer_create syscall implementation in
  kernel/time/posix-timers.c didn't properly validate the
  sigevent->sigev_notify field, which lead to out-of-bounds access in the
  show_timer function (called when /proc/$PID/timers is read). This
  allowed userspace applications to read arbitrary kernel memory (on a
  kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE)
  (bnc#1102851 bnc#1103580).
• CVE-2018-3620: Local attackers on baremetal systems could use
  speculative code patterns on hyperthreaded processors to read data
  present in the L1 Datacache used by other hyperthreads on the same CPU
  core, potentially leaking sensitive data. (bnc#1087081).
• CVE-2018-3646: Local attackers in virtualized guest systems could use
  speculative code patterns on hyperthreaded processors to read data
  present in the L1 Datacache used by other hyperthreads on the same CPU
  core, potentially leaking sensitive data, even from other virtual
  machines or the host system. (bnc#1089343).

For fixed non-security bugs, please refer to:
http://lists.suse.com/pipermail/sle-security-updates/2018-August/004414.html

Issue Links

• is related to: LU-11412 kernel update [SLES12 SP3 4.4.155-94.50.1]
• is related to: LU-11173 kernel update [SLES12 SP3 4.4.140-94.42.1]

Comments

[Peter Jones]

Landed for 2.12

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/33065/
Subject: LU-11255 kernel: kernel update [SLES12 SP3 4.4.143-94.47]
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 1a52fde2e8c2c5b13ed3d1b8f81055a6e352a671

[Gerrit Updater]

Jian Yu ([e-mail]) uploaded a new patch: https://review.whamcloud.com/33076
Subject: LU-11255 kernel: kernel update [SLES12 SP3 4.4.143-94.47]
Project: fs/lustre-release
Branch: b2_10
Current Patch Set: 1
Commit: d1fb6330faa037dcfb67ad4070f26ded0ba5af0c

[Gerrit Updater]

Jian Yu ([e-mail]) uploaded a new patch: https://review.whamcloud.com/33065
Subject: LU-11255 kernel: kernel update [SLES12 SP3 4.4.143-94.47]
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 01509453455a90c0fad886e1c878d06673dcaadd