Security update for the Linux Kernel (Live Patch 26 for SLE 12 SP3)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 26 for SLE 12 SP3)
Announcement ID: SUSE-SU-2019:1768-1
Rating: important
References: #1133191
Cross-References: CVE-2019-11487
Affected Products:
  • SUSE Linux Enterprise Live Patching 12-SP3

An update that fixes one vulnerability is now available.

Description:

This update for the Linux Kernel 4.4.180-94_97 fixes one issue.
The following security issue was fixed:

  • CVE-2019-11487: The Linux kernel allowed page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests (bsc#1133191).

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Enterprise Live Patching 12-SP3:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2019-1768=1

Package List:

  • SUSE Linux Enterprise Live Patching 12-SP3 (ppc64le x86_64):
    • kgraft-patch-4_4_180-94_97-default-2-2.1
    • kgraft-patch-4_4_180-94_97-default-debuginfo-2-2.1

References: