SUSE-SU-2021:1266-1: important: Security update for the Linux Kernel

Tue Apr 20 10:15:17 UTC 2021

   SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:1266-1
Rating:             important
References:         #1065729 #1113295 #1178181 #1181507 #1181674 
                    #1183405 #1183662 #1183755 #1184114 #1184120 
                    #1184170 #1184391 #1184393 #1184397 #1184494 
                    #1184511 #1184583 
Cross-References:   CVE-2020-25670 CVE-2020-25671 CVE-2020-25672
                    CVE-2020-25673 CVE-2020-36311 CVE-2021-20219
                    CVE-2021-29154 CVE-2021-30002 CVE-2021-3483

CVSS scores:
                    CVE-2020-25670 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2020-25671 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2020-25672 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2020-25673 (SUSE): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
                    CVE-2020-36311 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-20219 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-29154 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-29154 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-30002 (NVD) : 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:
                    SUSE Linux Enterprise Real Time Extension 12-SP5
______________________________________________________________________________

   An update that solves 9 vulnerabilities and has 8 fixes is
   now available.

Description:

   The SUSE Linux Enterprise 12 SP5 kernel RT was updated to receive various
   security and bugfixes.

   The following security bugs were fixed:

   - CVE-2021-29154: Fixed incorrect computation of branch displacements,
     allowing arbitrary code execution (bsc#1184391).
   - CVE-2020-25670, CVE-2020-25671, CVE-2020-25672, CVE-2020-25673: Fixed
     multiple bugs in NFC subsytem (bsc#1178181).
   - CVE-2020-36311: Fixed a denial of service (soft lockup) by triggering
     destruction of a large SEV VM (bsc#1184511).
   - CVE-2021-3483: Fixed a use-after-free in nosy.c (bsc#1184393).
   - CVE-2021-30002: Fixed a memory leak for large arguments in
     video_usercopy (bsc#1184120).
   - CVE-2021-20219: Fixed a denial of service in n_tty_receive_char_special
     (bsc#1184397).

   The following non-security bugs were fixed:

   - cifs: change noisy error message to FYI (bsc#1181507).
   - cifs_debug: use %pd instead of messing with ->d_name (bsc#1181507).
   - cifs: do not send close in compound create+close requests (bsc#1181507).
   - cifs: New optype for session operations (bsc#1181507).
   - cifs: print MIDs in decimal notation (bsc#1181507).
   - cifs: return proper error code in statfs(2) (bsc#1181507).
   - cifs: Tracepoints and logs for tracing credit changes (bsc#1181507).
   - fix setting irq affinity (bsc#1184583)
   - ibmvnic: Use 'skb_frag_address()' instead of hand coding it (bsc#1184114
     ltc#192237).
   - locking/mutex: Fix non debug version of mutex_lock_io_nested()
     (git-fixes).
   - net: sched: disable TCQ_F_NOLOCK for pfifo_fast (bsc#1183405)
   - powerpc/64s: Fix instruction encoding for lis in ppc_function_entry()
     (bsc#1065729).
   - powerpc/pmem: Include pmem prototypes (bsc#1113295 git-fixes).
   - powerpc/pseries/mobility: handle premature return from H_JOIN
     (bsc#1181674 ltc#189159 git-fixes bsc#1183662 ltc#191922).
   - powerpc/pseries/mobility: use struct for shared state (bsc#1181674
     ltc#189159 git-fixes bsc#1183662 ltc#191922).
   - powerpc/pseries/ras: Remove unused variable 'status' (bsc#1065729).
   - s390/pci: Fix s390_mmio_read/write with MIO (LTC#192079 bsc#1183755).
   - smb3: add dynamic trace point to trace when credits obtained
     (bsc#1181507).
   - smb3: fix crediting for compounding when only one request in flight
     (bsc#1181507).
   - usbip: fix stub_dev to check for stream socket (git-fixes).
   - usbip: fix vhci_hcd to check for stream socket (git-fixes).
   - virsh: list is showing less guests then "xl list" (bsc#1184513).
   - vsprintf: Do not have bprintf dereference pointers (bsc#1184494).
   - vsprintf: Do not preprocess non-dereferenced pointers for bprintf (%px
     and %pK) (bsc#1184494).
   - vsprintf: Fix off-by-one bug in bstr_printf() processing dereferenced
     pointers (bsc#1184494).

Special Instructions and Notes:

   Please reboot the system after installing this update.

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 Real Time Extension 12-SP5:

      zypper in -t patch SUSE-SLE-RT-12-SP5-2021-1266=1

Package List:

   - SUSE Linux Enterprise Real Time Extension 12-SP5 (x86_64):

      cluster-md-kmp-rt-4.12.14-10.40.1
      cluster-md-kmp-rt-debuginfo-4.12.14-10.40.1
      dlm-kmp-rt-4.12.14-10.40.1
      dlm-kmp-rt-debuginfo-4.12.14-10.40.1
      gfs2-kmp-rt-4.12.14-10.40.1
      gfs2-kmp-rt-debuginfo-4.12.14-10.40.1
      kernel-rt-4.12.14-10.40.1
      kernel-rt-base-4.12.14-10.40.1
      kernel-rt-base-debuginfo-4.12.14-10.40.1
      kernel-rt-debuginfo-4.12.14-10.40.1
      kernel-rt-debugsource-4.12.14-10.40.1
      kernel-rt-devel-4.12.14-10.40.1
      kernel-rt-devel-debuginfo-4.12.14-10.40.1
      kernel-rt_debug-4.12.14-10.40.1
      kernel-rt_debug-debuginfo-4.12.14-10.40.1
      kernel-rt_debug-debugsource-4.12.14-10.40.1
      kernel-rt_debug-devel-4.12.14-10.40.1
      kernel-rt_debug-devel-debuginfo-4.12.14-10.40.1
      kernel-syms-rt-4.12.14-10.40.1
      ocfs2-kmp-rt-4.12.14-10.40.1
      ocfs2-kmp-rt-debuginfo-4.12.14-10.40.1

   - SUSE Linux Enterprise Real Time Extension 12-SP5 (noarch):

      kernel-devel-rt-4.12.14-10.40.1
      kernel-source-rt-4.12.14-10.40.1

References:

   https://www.suse.com/security/cve/CVE-2020-25670.html
   https://www.suse.com/security/cve/CVE-2020-25671.html
   https://www.suse.com/security/cve/CVE-2020-25672.html
   https://www.suse.com/security/cve/CVE-2020-25673.html
   https://www.suse.com/security/cve/CVE-2020-36311.html
   https://www.suse.com/security/cve/CVE-2021-20219.html
   https://www.suse.com/security/cve/CVE-2021-29154.html
   https://www.suse.com/security/cve/CVE-2021-30002.html
   https://www.suse.com/security/cve/CVE-2021-3483.html
   https://bugzilla.suse.com/1065729
   https://bugzilla.suse.com/1113295
   https://bugzilla.suse.com/1178181
   https://bugzilla.suse.com/1181507
   https://bugzilla.suse.com/1181674
   https://bugzilla.suse.com/1183405
   https://bugzilla.suse.com/1183662
   https://bugzilla.suse.com/1183755
   https://bugzilla.suse.com/1184114
   https://bugzilla.suse.com/1184120
   https://bugzilla.suse.com/1184170
   https://bugzilla.suse.com/1184391
   https://bugzilla.suse.com/1184393
   https://bugzilla.suse.com/1184397
   https://bugzilla.suse.com/1184494
   https://bugzilla.suse.com/1184511
   https://bugzilla.suse.com/1184583