Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2021:0452-1
Rating:	important
References:	bsc#1105322 bsc#1105323 bsc#1139944 bsc#1168952 bsc#1173942 bsc#1175306 bsc#1176395 bsc#1176485 bsc#1177440 bsc#1177666 bsc#1178182 bsc#1178272 bsc#1178589 bsc#1178886 bsc#1179107 bsc#1179140 bsc#1179141 bsc#1179204 bsc#1179419 bsc#1179508 bsc#1179509 bsc#1179601 bsc#1179616 bsc#1179663 bsc#1179666 bsc#1179745 bsc#1179877 bsc#1179878 bsc#1179960 bsc#1179961 bsc#1180008 bsc#1180027 bsc#1180028 bsc#1180029 bsc#1180030 bsc#1180031 bsc#1180032 bsc#1180052 bsc#1180086 bsc#1180559 bsc#1180562 bsc#1180815 bsc#1181096 bsc#1181158 bsc#1181349 bsc#1181553 bsc#969755
Cross-References:	CVE-2018-10902 CVE-2019-20934 CVE-2020-0444 CVE-2020-0465 CVE-2020-0466 CVE-2020-11668 CVE-2020-15436 CVE-2020-15437 CVE-2020-25211 CVE-2020-25285 CVE-2020-25669 CVE-2020-27068 CVE-2020-27777 CVE-2020-27786 CVE-2020-27825 CVE-2020-27835 CVE-2020-28915 CVE-2020-28974 CVE-2020-29568 CVE-2020-29569 CVE-2020-29660 CVE-2020-29661 CVE-2020-36158 CVE-2020-4788 CVE-2021-3347
CVSS scores:	CVE-2018-10902 ( SUSE ): 7.0 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2018-10902 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2019-20934 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2019-20934 ( NVD ): 5.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H CVE-2020-0444 ( SUSE ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-0444 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-0465 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2020-0465 ( NVD ): 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2020-0466 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2020-0466 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-11668 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVE-2020-11668 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVE-2020-15436 ( SUSE ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-15436 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-15437 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-15437 ( NVD ): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVE-2020-25211 ( SUSE ): 5.9 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVE-2020-25211 ( NVD ): 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H CVE-2020-25285 ( SUSE ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-25285 ( NVD ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-25669 ( SUSE ): 4.3 CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-25669 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-27068 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVE-2020-27068 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2020-27777 ( SUSE ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-27777 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-27786 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-27786 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-27825 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-27825 ( NVD ): 5.7 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H CVE-2020-27835 ( SUSE ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-27835 ( NVD ): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVE-2020-28915 ( SUSE ): 5.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L CVE-2020-28915 ( NVD ): 5.8 CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H CVE-2020-28974 ( SUSE ): 5.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L CVE-2020-28974 ( NVD ): 5.0 CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H CVE-2020-29568 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2020-29568 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2020-29569 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-29569 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-29660 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2020-29660 ( NVD ): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N CVE-2020-29661 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2020-29661 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-36158 ( SUSE ): 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2020-36158 ( NVD ): 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2020-4788 ( SUSE ): 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVE-2020-4788 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2021-3347 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-3347 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:	HPE Helion OpenStack 8 SUSE Enterprise Storage 5 SUSE Linux Enterprise High Availability Extension 12 SP3 SUSE Linux Enterprise High Performance Computing 12 SP3 SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server 12 SP3 BCL 12-SP3 SUSE Linux Enterprise Server 12 SP3 ESPOS 12-SP3 SUSE Linux Enterprise Server 12 SP3 LTSS 12-SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP3 SUSE OpenStack Cloud 8 SUSE OpenStack Cloud Crowbar 8

An update that solves 25 vulnerabilities and has 22 security fixes can now be installed.

Description:

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

The following security bugs were fixed:

• CVE-2021-3347: A use-after-free was discovered in the PI futexes during fault handling, allowing local users to execute code in the kernel (bnc#1181349).
• CVE-2020-25211: Fixed a buffer overflow in ctnetlink_parse_tuple_filter() which could be triggered by a local attackers by injecting conntrack netlink configuration (bnc#1176395).
• CVE-2020-27835: A use-after-free in the infiniband hfi1 driver was found, specifically in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system (bnc#1179878).
• CVE-2020-29569: Fixed a potential privilege escalation and information leaks related to the PV block backend, as used by Xen (bnc#1179509).
• CVE-2020-29568: Fixed a denial of service issue, related to processing watch events (bnc#1179508).
• CVE-2020-0444: Fixed a bad kfree due to a logic error in audit_data_to_entry (bnc#1180027).
• CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180029).
• CVE-2020-0466: Fixed a use-after-free due to a logic error in do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180031).
• CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666).
• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-27068: Fixed an out-of-bounds read due to a missing bounds check in the nl80211_policy policy of nl80211.c (bnc#1180086).
• CVE-2020-27777: Fixed a privilege escalation in the Run-Time Abstraction Services (RTAS) interface, affecting guests running on top of PowerVM or KVM hypervisors (bnc#1179107).
• CVE-2020-27786: Fixed an out-of-bounds write in the MIDI implementation (bnc#1179601).
• CVE-2020-27825: Fixed a race in the trace_open and buffer resize calls (bsc#1179960).
• CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bnc#1179745).
• CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179745).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).
• CVE-2020-36158: Fixed a potential remote code execution in the Marvell mwifiex driver (bsc#1180559).
• CVE-2020-11668: Fixed the mishandling of invalid descriptors in the Xirlink camera USB driver (bnc#1168952).
• CVE-2020-25285: Fixed a race condition between hugetlb sysctl handlers in mm/hugetlb.c (bnc#1176485).
• CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA fault statistics were inappropriately freed (bsc#1179663).
• CVE-2018-10902: It was found that the raw midi kernel driver did not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation (bnc#1105322).

The following non-security bugs were fixed:

• cifs: do not revalidate mountpoint dentries (bsc#1177440).
• cifs: fix potential use-after-free in cifs_echo_request() (bsc#1139944).
• cifs: ignore revalidate failures in case of process gets signaled (bsc#1177440).
• epoll: Keep a reference on files added to the check list (bsc#1180031).
• fix regression in "epoll: Keep a reference on files added to the check list" (bsc#1180031, git-fixes).
• futex: Avoid freeing an active timer (bsc#969755).
• futex: Avoid violating the 10th rule of futex (bsc#969755).
• futex: Change locking rules (bsc#969755).
• futex: Do not enable IRQs unconditionally in put_pi_state() (bsc#969755).
• futex: Drop hb->lock before enqueueing on the rtmutex (bsc#969755).
• futex: Fix incorrect should_fail_futex() handling (bsc#969755).
• futex: Fix more put_pi_state() vs. exit_pi_state_list() races (bsc#969755).
• futex: Fix OWNER_DEAD fixup (bsc#969755).
• futex: Fix pi_state->owner serialization (bsc#969755).
• futex: Fix small (and harmless looking) inconsistencies (bsc#969755).
• futex: Futex_unlock_pi() determinism (bsc#969755).
• futex: Handle early deadlock return correctly (bsc#969755).
• futex: Handle transient "ownerless" rtmutex state correctly (bsc#969755).
• futex: Pull rt_mutex_futex_unlock() out from under hb->lock (bsc#969755).
• futex: Rework futex_lock_pi() to use rt_mutex_*_proxy_lock() (bsc#969755).
• futex: Rework inconsistent rt_mutex/futex_q state (bsc#969755).
• futex,rt_mutex: Fix rt_mutex_cleanup_proxy_lock() (bsc#969755).
• futex,rt_mutex: Introduce rt_mutex_init_waiter() (bsc#969755).
• futex,rt_mutex: Provide futex specific rt_mutex API (bsc#969755).
• futex,rt_mutex: Restructure rt_mutex_finish_proxy_lock() (bsc#969755).
• HID: Fix slab-out-of-bounds read in hid_field_extract (bsc#1180052).
• IB/hfi1: Clean up hfi1_user_exp_rcv_setup function (bsc#1179878).
• IB/hfi1: Clean up pin_vector_pages() function (bsc#1179878).
• IB/hfi1: Fix the bail out code in pin_vector_pages() function (bsc#1179878).
• IB/hfi1: Move structure definitions from user_exp_rcv.c to user_exp_rcv.h (bsc#1179878).
• IB/hfi1: Name function prototype parameters (bsc#1179878).
• IB/hfi1: Use filedata rather than filepointer (bsc#1179878).
• locking/futex: Allow low-level atomic operations to return -EAGAIN (bsc#969755).
• mm/userfaultfd: do not access vma->vm_mm after calling handle_userfault() (bsc#1179204).
• scsi: iscsi: Fix a potential deadlock in the timeout handler (bsc#1178272).
• Use r3 instead of r13 for l1d fallback flush in do_uaccess_fush (bsc#1181096 ltc#190883).
• video: hyperv_fb: include vmalloc.h (bsc#1175306).

Special Instructions and Notes:

• Please reboot the system after installing this update.

Patch Instructions:

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

• HPE Helion OpenStack 8
  zypper in -t patch HPE-Helion-OpenStack-8-2021-452=1
• SUSE OpenStack Cloud 8
  zypper in -t patch SUSE-OpenStack-Cloud-8-2021-452=1
• SUSE OpenStack Cloud Crowbar 8
  zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2021-452=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP3
  zypper in -t patch SUSE-SLE-HA-12-SP3-2021-452=1 SUSE-SLE-SAP-12-SP3-2021-452=1
• SUSE Linux Enterprise High Availability Extension 12 SP3
  zypper in -t patch SUSE-SLE-HA-12-SP3-2021-452=1
• SUSE Linux Enterprise Server 12 SP3 BCL 12-SP3
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2021-452=1
• SUSE Linux Enterprise Server 12 SP3 ESPOS 12-SP3
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-ESPOS-2021-452=1
• SUSE Linux Enterprise Server 12 SP3 LTSS 12-SP3
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-2021-452=1
• SUSE Enterprise Storage 5
  zypper in -t patch SUSE-Storage-5-2021-452=1

Package List:

• HPE Helion OpenStack 8 (nosrc x86_64)
  • kernel-default-4.4.180-94.138.1
• HPE Helion OpenStack 8 (x86_64)
  • kgraft-patch-4_4_180-94_138-default-debuginfo-1-4.3.1
  • kernel-default-kgraft-4.4.180-94.138.1
  • kernel-default-debuginfo-4.4.180-94.138.1
  • kernel-default-base-debuginfo-4.4.180-94.138.1
  • kernel-default-debugsource-4.4.180-94.138.1
  • kernel-default-base-4.4.180-94.138.1
  • kernel-syms-4.4.180-94.138.1
  • kernel-default-devel-4.4.180-94.138.1
  • kgraft-patch-4_4_180-94_138-default-1-4.3.1
• HPE Helion OpenStack 8 (noarch)
  • kernel-macros-4.4.180-94.138.1
  • kernel-devel-4.4.180-94.138.1
  • kernel-source-4.4.180-94.138.1
• SUSE OpenStack Cloud 8 (nosrc x86_64)
  • kernel-default-4.4.180-94.138.1
• SUSE OpenStack Cloud 8 (x86_64)
  • kgraft-patch-4_4_180-94_138-default-debuginfo-1-4.3.1
  • kernel-default-kgraft-4.4.180-94.138.1
  • kernel-default-debuginfo-4.4.180-94.138.1
  • kernel-default-base-debuginfo-4.4.180-94.138.1
  • kernel-default-debugsource-4.4.180-94.138.1
  • kernel-default-base-4.4.180-94.138.1
  • kernel-syms-4.4.180-94.138.1
  • kernel-default-devel-4.4.180-94.138.1
  • kgraft-patch-4_4_180-94_138-default-1-4.3.1
• SUSE OpenStack Cloud 8 (noarch)
  • kernel-macros-4.4