A Linux Kernel security update has been released for openSUSE Leap 15.3.

openSUSE-SU-2021:2409-1: important: Security update for the Linux Kernel

openSUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID: openSUSE-SU-2021:2409-1
Rating: important
References: #1152489 #1182470 #1185486 #1187927 #1187972
#1187980 #1188062 #1188116
Cross-References: CVE-2021-22555 CVE-2021-33909
CVSS scores:
CVE-2021-22555 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-22555 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-33909 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:
openSUSE Leap 15.3
______________________________________________________________________________

An update that solves two vulnerabilities and has 6 fixes
is now available.

Description:

The SUSE Linux Enterprise 15 SP3 Azure kernel was updated to receive
various security and bugfixes.

The following security bugs were fixed:

- CVE-2021-22555: A heap out-of-bounds write affecting Linux since
v2.6.19-rc1 was discovered in net/netfilter/x_tables.c (bnc#1188116 ).
- CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer
that allows to obtain full root privileges (bsc#1188062).

The following non-security bugs were fixed:

- ceph: must hold snap_rwsem when filling inode for async create
(bsc#1187927).
- cgroup1: do not allow '\n' in renaming (bsc#1187972).
- qla2xxx: synchronize rport dev_loss_tmo setting (bsc#1182470
bsc#1185486).
- scsi: ufs: ufshcd-pltfrm depends on HAS_IOMEM (bsc#1187980).
- usb: dwc3: Fix debugfs creation flow (git-fixes).
- x86/pkru: Write hardware init value to PKRU when xstate is init
(bsc#1152489).
- x86/process: Check PF_KTHREAD and not current->mm for kernel threads
(bsc#1152489).

Special Instructions and Notes:

Please reboot the system after installing this update.

Patch Instructions:

To install this openSUSE 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:

- openSUSE Leap 15.3:

zypper in -t patch openSUSE-SLE-15.3-2021-2409=1


Package List:

- openSUSE Leap 15.3 (x86_64):

cluster-md-kmp-azure-5.3.18-38.14.1
cluster-md-kmp-azure-debuginfo-5.3.18-38.14.1
dlm-kmp-azure-5.3.18-38.14.1
dlm-kmp-azure-debuginfo-5.3.18-38.14.1
gfs2-kmp-azure-5.3.18-38.14.1
gfs2-kmp-azure-debuginfo-5.3.18-38.14.1
kernel-azure-5.3.18-38.14.1
kernel-azure-debuginfo-5.3.18-38.14.1
kernel-azure-debugsource-5.3.18-38.14.1
kernel-azure-devel-5.3.18-38.14.1
kernel-azure-devel-debuginfo-5.3.18-38.14.1
kernel-azure-extra-5.3.18-38.14.1
kernel-azure-extra-debuginfo-5.3.18-38.14.1
kernel-azure-livepatch-devel-5.3.18-38.14.1
kernel-azure-optional-5.3.18-38.14.1
kernel-azure-optional-debuginfo-5.3.18-38.14.1
kernel-syms-azure-5.3.18-38.14.1
kselftests-kmp-azure-5.3.18-38.14.1
kselftests-kmp-azure-debuginfo-5.3.18-38.14.1
ocfs2-kmp-azure-5.3.18-38.14.1
ocfs2-kmp-azure-debuginfo-5.3.18-38.14.1
reiserfs-kmp-azure-5.3.18-38.14.1
reiserfs-kmp-azure-debuginfo-5.3.18-38.14.1

- openSUSE Leap 15.3 (noarch):

kernel-devel-azure-5.3.18-38.14.1
kernel-source-azure-5.3.18-38.14.1

References:

  https://www.suse.com/security/cve/CVE-2021-22555.html
  https://www.suse.com/security/cve/CVE-2021-33909.html
  https://bugzilla.suse.com/1152489
  https://bugzilla.suse.com/1182470
  https://bugzilla.suse.com/1185486
  https://bugzilla.suse.com/1187927
  https://bugzilla.suse.com/1187972
  https://bugzilla.suse.com/1187980
  https://bugzilla.suse.com/1188062
  https://bugzilla.suse.com/1188116