Security update for the Linux Kernel

SUSE Security Update: Security update for the Linux Kernel
Announcement ID: SUSE-SU-2021:1301-1
Rating: important
References: #1047233 #1065729 #1113295 #1152489 #1154353 #1155518 #1156395 #1178181 #1181507 #1183405 #1184074 #1184120 #1184194 #1184211 #1184388 #1184391 #1184393 #1184509 #1184511 #1184512 #1184514 #1184583 #1184647
Cross-References:CVE-2020-25670 CVE-2020-25671 CVE-2020-25672 CVE-2020-25673 CVE-2020-36310 CVE-2020-36311 CVE-2020-36312 CVE-2021-28950 CVE-2021-29154 CVE-2021-30002 CVE-2021-3483
Affected Products:
  • SUSE Linux Enterprise Module for Public Cloud 15-SP2

An update that solves 11 vulnerabilities and has 12 fixes is now available.


The SUSE Linux Enterprise 15 SP2 Azure kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:

  • 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-2021-29154: Fixed incorrect computation of branch displacements, allowing arbitrary code execution (bsc#1184391).
  • CVE-2021-30002: Fixed a memory leak for large arguments in video_usercopy (bsc#1184120).
  • CVE-2021-3483: Fixed a use-after-free in nosy.c (bsc#1184393).
  • CVE-2020-36310: Fixed infinite loop for certain nested page faults (bsc#1184512).
  • CVE-2020-36312: Fixed a memory leak upon a kmalloc failure (bsc#1184509 ).
  • CVE-2021-28950: Fixed an issue in fs/fuse/fuse_i.h due to a retry loop continually was finding the same bad inode (bsc#1184194).

The following non-security bugs were fixed:
  • ALSA: aloop: Fix initialization of controls (git-fixes).
  • ALSA: hda/realtek: Fix speaker amp setup on Acer Aspire E1 (git-fixes).
  • appletalk: Fix skb allocation size in loopback case (git-fixes).
  • ASoC: cygnus: fix for_each_child.cocci warnings (git-fixes).
  • ASoC: fsl_esai: Fix TDM slot setup for I2S mode (git-fixes).
  • ASoC: intel: atom: Remove 44100 sample-rate from the media and deep-buffer DAI descriptions (git-fixes).
  • ASoC: intel: atom: Stop advertising non working S24LE support (git-fixes).
  • ASoC: max98373: Added 30ms turn on/off time delay (git-fixes).
  • ASoC: sunxi: sun4i-codec: fill ASoC card owner (git-fixes).
  • ASoC: wm8960: Fix wrong bclk and lrclk with pll enabled for some chips (git-fixes).
  • ath10k: hold RCU lock when calling ieee80211_find_sta_by_ifaddr() (git-fixes).
  • atl1c: fix error return code in atl1c_probe() (git-fixes).
  • atl1e: fix error return code in atl1e_probe() (git-fixes).
  • batman-adv: initialize "struct batadv_tvlv_tt_vlan_data"->reserved field (git-fixes).
  • bpf: Remove MTU check in __bpf_skb_max_len (bsc#1155518).
  • brcmfmac: clear EAP/association status bits on linkdown events (git-fixes).
  • bus: ti-sysc: Fix warning on unbind if reset is not deasserted (git-fixes).
  • 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).
  • clk: fix invalid usage of list cursor in register (git-fixes).
  • clk: fix invalid usage of list cursor in unregister (git-fixes).
  • clk: socfpga: fix iomem pointer cast on 64-bit (git-fixes).
  • drivers: video: fbcon: fix NULL dereference in fbcon_cursor() (git-fixes).
  • drm/amdgpu: check alignment on CPU page for bo map (git-fixes).
  • drm/amdgpu: fix offset calculation in amdgpu_vm_bo_clear_mappings() (git-fixes).
  • drm/i915: Fix invalid access to ACPI _DSM objects (bsc#1184074).
  • drm/msm/adreno: a5xx_power: Do not apply A540 lm_setup to other GPUs (git-fixes).
  • drm/msm: Ratelimit invalid-fence message (git-fixes).
  • drm/msm: Set drvdata to NULL when msm_drm_init() fails (git-fixes).
  • enetc: Fix reporting of h/w packet counters (git-fixes).
  • fuse: fix bad inode (bsc#1184211).
  • fuse: fix live lock in fuse_iget() (bsc#1184211).
  • i40e: Fix parameters in aq_get_phy_register() (jsc#SLE-8025).
  • i40e: Fix sparse error: 'vsi->netdev' could be null (jsc#SLE-8025).
  • ice: remove DCBNL_DEVRESET bit from PF state (jsc#SLE-7926).
  • kABI: powerpc/pmem: Include pmem prototypes (bsc#1113295 git-fixes).
  • libbpf: Fix INSTALL flag order (bsc#1155518).
  • locking/mutex: Fix non debug version of mutex_lock_io_nested() (git-fixes).
  • mac80211: choose first enabled channel for monitor (git-fixes).
  • mac80211: fix TXQ AC confusion (git-fixes).
  • mISDN: fix crash in fritzpci (git-fixes).
  • net: atheros: switch from 'pci_' to 'dma_' API (git-fixes).
  • net: b44: fix error return code in b44_init_one() (git-fixes).
  • net: ethernet: ti: cpsw: fix error return code in cpsw_probe() (git-fixes).
  • net: hns3: Remove the left over redundant check & assignment (bsc#1154353).
  • net: lantiq: Wait for the GPHY firmware to be ready (git-fixes).
  • net/mlx5: Fix PPLM register mapping (jsc#SLE-8464).
  • net: pasemi: fix error return code in pasemi_mac_open() (git-fixes).
  • net: phy: broadcom: Only advertise EEE for supported modes (git-fixes).
  • net: qualcomm: rmnet: Fix incorrect receive packet handling during cleanup (git-fixes).
  • net: sched: disable TCQ_F_NOLOCK for pfifo_fast (bsc#1183405)
  • net: wan/lmc: unregister device when no matching device is found (git-fixes).
  • platform/x86: intel-hid: Support Lenovo ThinkPad X1 Tablet Gen 2 (git-fixes).
  • platform/x86: thinkpad_acpi: Allow the FnLock LED to change state (git-fixes).
  • PM: runtime: Fix ordering in pm_runtime_get_suppliers() (git-fixes).
  • Return an error when module update fails (bsc#1047233 bsc#1184388).
  • powerpc/64s: Fix instruction encoding for lis in ppc_function_entry() (bsc#1065729).
  • powerpc/pmem: Include pmem prototypes (bsc#1113295 git-fixes).
  • powerpc/pseries/ras: Remove unused variable 'status' (bsc#1065729).
  • powerpc/sstep: Check instruction validity against ISA version before emulation (bsc#1156395).
  • powerpc/sstep: Fix darn emulation (bsc#1156395).
  • powerpc/sstep: Fix incorrect return from analyze_instr() (bsc#1156395).
  • powerpc/sstep: Fix load-store and update emulation (bsc#1156395).
  • qlcnic: fix error return code in qlcnic_83xx_restart_hw() (git-fixes).
  • RAS/CEC: Correct ce_add_elem()'s returned values (bsc#1152489).
  • rpm/ Fix dependency of kernel-*-devel package (bsc#1184514)
  • scsi: ibmvfc: Fix invalid state machine BUG_ON() (bsc#1184647 ltc#191231).
  • 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).
  • soc/fsl: qbman: fix conflicting alignment attributes (git-fixes).
  • thermal/core: Add NULL pointer check before using cooling device stats (git-fixes).
  • USB: cdc-acm: downgrade message to debug (git-fixes).
  • USB: cdc-acm: untangle a circular dependency between callback and softint (git-fixes).
  • USBip: vhci_hcd fix shift out-of-bounds in vhci_hub_control() (git-fixes).
  • USB: quirks: ignore remote wake-up on Fibocom L850-GL LTE modem (git-fixes).
  • x86: Introduce TS_COMPAT_RESTART to fix get_nr_restart_syscall() (bsc#1152489).
  • x86/ioapic: Ignore IRQ2 again (bsc#1152489).
  • x86/mem_encrypt: Correct physical address calculation in __set_clr_pte_enc() (bsc#1152489).
  • xen/events: fix setting irq affinity (bsc#1184583).

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 Module for Public Cloud 15-SP2:
    zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP2-2021-1301=1

Package List:

  • SUSE Linux Enterprise Module for Public Cloud 15-SP2 (noarch):
    • kernel-devel-azure-5.3.18-18.44.1
    • kernel-source-azure-5.3.18-18.44.1
  • SUSE Linux Enterprise Module for Public Cloud 15-SP2 (x86_64):
    • kernel-azure-5.3.18-18.44.1
    • kernel-azure-debuginfo-5.3.18-18.44.1
    • kernel-azure-debugsource-5.3.18-18.44.1
    • kernel-azure-devel-5.3.18-18.44.1
    • kernel-azure-devel-debuginfo-5.3.18-18.44.1
    • kernel-syms-azure-5.3.18-18.44.1