SUSE-SU-2020:2623-1: important: Security update for the Linux Kernel

Mon Sep 14 10:14:35 MDT 2020

   SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2020:2623-1
Rating:             important
References:         #1058115 #1071995 #1144333 #1154366 #1165629 
                    #1171988 #1172428 #1172963 #1173798 #1173954 
                    #1174205 #1174689 #1174699 #1174757 #1174784 
                    #1174978 #1175112 #1175127 #1175213 #1175228 
                    #1175515 #1175518 #1175691 #1175749 #1176069 

Cross-References:   CVE-2020-10135 CVE-2020-14314 CVE-2020-14331
                    CVE-2020-14356 CVE-2020-14386 CVE-2020-16166
                    CVE-2020-1749 CVE-2020-24394
Affected Products:
                    SUSE Linux Enterprise Live Patching 12-SP4
______________________________________________________________________________

   An update that solves 8 vulnerabilities and has 17 fixes is
   now available.

Description:

   The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various
   security and bugfixes.

   The following security bugs were fixed:

   - CVE-2020-1749: Use ip6_dst_lookup_flow instead of ip6_dst_lookup
     (bsc#1165629).
   - CVE-2020-14314: Fixed a potential negative array index in do_split()
     (bsc#1173798).
   - CVE-2020-14356: Fixed a null pointer dereference in cgroupv2 subsystem
     which could have led to privilege escalation (bsc#1175213).
   - CVE-2020-14331: Fixed a missing check in vgacon scrollback handling
     (bsc#1174205).
   - CVE-2020-16166: Fixed a potential issue which could have allowed remote
     attackers to make observations that help to obtain sensitive information
     about the internal state of the network RNG (bsc#1174757).
   - CVE-2020-24394: Fixed an issue which could set incorrect permissions on
     new filesystem objects when the filesystem lacks ACL support
     (bsc#1175518).
   - CVE-2020-10135: Legacy pairing and secure-connections pairing
     authentication Bluetooth might have allowed an unauthenticated user to
     complete authentication without pairing credentials via adjacent access
     (bsc#1171988).
   - CVE-2020-14386: Fixed a potential local privilege escalation via memory
     corruption (bsc#1176069).

   The following non-security bugs were fixed:

   - btrfs: remove a BUG_ON() from merge_reloc_roots() (bsc#1174784).
   - cifs: document and cleanup dfs mount (bsc#1144333 bsc#1172428).
   - cifs: Fix an error pointer dereference in cifs_mount() (bsc#1144333
     bsc#1172428).
   - cifs: fix double free error on share and prefix (bsc#1144333
     bsc#1172428).
   - cifs: handle empty list of targets in cifs_reconnect() (bsc#1144333
     bsc#1172428).
   - cifs: handle RESP_GET_DFS_REFERRAL.PathConsumed in reconnect
     (bsc#1144333 bsc#1172428).
   - cifs: merge __{cifs,smb2}_reconnect[_tcon]() into cifs_tree_connect()
     (bsc#1144333 bsc#1172428).
   - cifs: only update prefix path of DFS links in cifs_tree_connect()
     (bsc#1144333 bsc#1172428).
   - cifs: reduce number of referral requests in DFS link lookups
     (bsc#1144333 bsc#1172428).
   - cifs: rename reconn_inval_dfs_target() (bsc#1144333 bsc#1172428).
   - Drivers: hv: vmbus: Only notify Hyper-V for die events that are oops
     (bsc#1175127).
   - ibmvnic: Fix IRQ mapping disposal in error path (bsc#1175112 ltc#187459).
   - ip6_tunnel: allow not to count pkts on tstats by passing dev as NULL
     (bsc#1175515).
   - ip_tunnel: allow not to count pkts on tstats by setting skb's dev to
     NULL (bsc#1175515).
   - ipvs: fix the connection sync failed in some cases (bsc#1174699).
   - kabi: hide new parameter of ip6_dst_lookup_flow() (bsc#1165629).
   - kabi: mask changes to struct ipv6_stub (bsc#1165629).
   - mm: Avoid calling build_all_zonelists_init under hotplug context
     (bsc#1154366).
   - mm, vmstat: reduce zone->lock holding time by /proc/pagetypeinfo
     (bsc#1175691).
   - ocfs2: add trimfs dlm lock resource (bsc#1175228).
   - ocfs2: add trimfs lock to avoid duplicated trims in cluster
     (bsc#1175228).
   - ocfs2: avoid inode removal while nfsd is accessing it (bsc#1172963).
   - ocfs2: avoid inode removal while nfsd is accessing it (bsc#1172963).
   - ocfs2: fix panic on nfs server over ocfs2 (bsc#1172963).
   - ocfs2: fix panic on nfs server over ocfs2 (bsc#1172963).
   - ocfs2: fix remounting needed after setfacl command (bsc#1173954).
   - ocfs2: fix the application IO timeout when fstrim is running
     (bsc#1175228).
   - ocfs2: load global_inode_alloc (bsc#1172963).
   - ocfs2: load global_inode_alloc (bsc#1172963).
   - powerpc/eeh: Fix pseries_eeh_configure_bridge() (bsc#1174689).
   - powerpc/pseries: PCIE PHB reset (bsc#1174689).
   - Revert "ocfs2: fix panic on nfs server over ocfs2 (bsc#1172963)." This
     reverts commit 2638f62c6bc33d4c10ce0dddbf240aa80d366d7b.
   - Revert "ocfs2: load global_inode_alloc (bsc#1172963)." This reverts
     commit f04f670651f505cb354f26601ec5f5e4428f2f47.
   - scsi: scsi_dh_alua: skip RTPG for devices only supporting
     active/optimized (bsc#1174978).
   - selftests/livepatch: fix mem leaks in test-klp-shadow-vars (bsc#1071995).
   - selftests/livepatch: more verification in test-klp-shadow-vars
     (bsc#1071995).
   - selftests/livepatch: rework test-klp-shadow-vars (bsc#1071995).
   - selftests/livepatch: simplify test-klp-callbacks busy target tests
     (bsc#1071995).
   - Update patch reference for a tipc fix patch (bsc#1175515)
   - x86/unwind/orc: Fix ORC for newly forked tasks (bsc#1058115).
   - xen: do not reschedule in preemption off sections (bsc#1175749).

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 Live Patching 12-SP4:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2020-2623=1

Package List:

   - SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64):

      kernel-default-kgraft-4.12.14-95.60.1
      kernel-default-kgraft-devel-4.12.14-95.60.1
      kgraft-patch-4_12_14-95_60-default-1-6.3.1

References:

   https://www.suse.com/security/cve/CVE-2020-10135.html
   https://www.suse.com/security/cve/CVE-2020-14314.html
   https://www.suse.com/security/cve/CVE-2020-14331.html
   https://www.suse.com/security/cve/CVE-2020-14356.html
   https://www.suse.com/security/cve/CVE-2020-14386.html
   https://www.suse.com/security/cve/CVE-2020-16166.html
   https://www.suse.com/security/cve/CVE-2020-1749.html
   https://www.suse.com/security/cve/CVE-2020-24394.html
   https://bugzilla.suse.com/1058115
   https://bugzilla.suse.com/1071995
   https://bugzilla.suse.com/1144333
   https://bugzilla.suse.com/1154366
   https://bugzilla.suse.com/1165629
   https://bugzilla.suse.com/1171988
   https://bugzilla.suse.com/1172428
   https://bugzilla.suse.com/1172963
   https://bugzilla.suse.com/1173798
   https://bugzilla.suse.com/1173954
   https://bugzilla.suse.com/1174205
   https://bugzilla.suse.com/1174689
   https://bugzilla.suse.com/1174699
   https://bugzilla.suse.com/1174757
   https://bugzilla.suse.com/1174784
   https://bugzilla.suse.com/1174978
   https://bugzilla.suse.com/1175112
   https://bugzilla.suse.com/1175127
   https://bugzilla.suse.com/1175213
   https://bugzilla.suse.com/1175228
   https://bugzilla.suse.com/1175515
   https://bugzilla.suse.com/1175518
   https://bugzilla.suse.com/1175691
   https://bugzilla.suse.com/1175749
   https://bugzilla.suse.com/1176069