Operating System:

[SUSE]

Published:

09 November 2020

Protect yourself against future threats.

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.3936
                   Security update for the Linux Kernel
                              9 November 2020

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           linux kernel
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account      
                   Denial of Service               -- Existing Account      
                   Access Confidential Data        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-25645 CVE-2020-25643 CVE-2020-25641
                   CVE-2020-25212  

Reference:         ESB-2020.3907
                   ESB-2020.3888
                   ESB-2020.3710
                   ESB-2020.3658

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2020/suse-su-20203230-1

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SUSE Security Update: Security update for the Linux Kernel

______________________________________________________________________________

Announcement ID:   SUSE-SU-2020:3230-1
Rating:            important
References:        #1065600 #1155798 #1168468 #1171675 #1175599 #1175718
                   #1176019 #1176381 #1176588 #1176979 #1177027 #1177121
                   #1177193 #1177194 #1177206 #1177258 #1177283 #1177284
                   #1177285 #1177286 #1177297 #1177384 #1177511 #954532
Cross-References:  CVE-2020-25212 CVE-2020-25641 CVE-2020-25643 CVE-2020-25645
Affected Products:
                   SUSE Linux Enterprise Module for Realtime 15-SP2
______________________________________________________________________________

An update that solves four vulnerabilities and has 20 fixes is now available.

Description:

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

  o CVE-2020-25212: Fixed getxattr kernel panic and memory overflow (bsc#
    1176381).
  o CVE-2020-25643: Added range checks in ppp_cp_parse_cr() (bsc#1177206).
  o CVE-2020-25641: Allowed for_each_bvec to support zero len bvec (bsc#
    1177121).
  o CVE-2020-25645: Added transport ports in route lookup for geneve (bsc#
    1177511).


The following non-security bugs were fixed:

  o 9p: Fix memory leak in v9fs_mount (git-fixes).
  o ACPI: EC: Reference count query handlers under lock (git-fixes).
  o airo: Fix read overflows sending packets (git-fixes).
  o ar5523: Add USB ID of SMCWUSBT-G2 wireless adapter (git-fixes).
  o ASoC: img-i2s-out: Fix runtime PM imbalance on error (git-fixes).
  o ASoC: Intel: bytcr_rt5640: Add quirk for MPMAN Converter9 2-in-1
    (git-fixes).
  o ASoC: kirkwood: fix IRQ error handling (git-fixes).
  o ASoC: wm8994: Ensure the device is resumed in wm89xx_mic_detect functions
    (git-fixes).
  o ASoC: wm8994: Skip setting of the WM8994_MICBIAS register for WM1811
    (git-fixes).
  o ath10k: fix array out-of-bounds access (git-fixes).
  o ath10k: fix memory leak for tpc_stats_final (git-fixes).
  o ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read (git-fixes).
  o Bluetooth: Fix refcount use-after-free issue (git-fixes).
  o Bluetooth: guard against controllers sending zero'd events (git-fixes).
  o Bluetooth: Handle Inquiry Cancel error after Inquiry Complete (git-fixes).
  o Bluetooth: L2CAP: handle l2cap config request during open state
    (git-fixes).
  o Bluetooth: prefetch channel before killing sock (git-fixes).
  o brcmfmac: Fix double freeing in the fmac usb data path (git-fixes).
  o btrfs: block-group: do not set the wrong READA flag for
    btrfs_read_block_groups() (bsc#1176019).
  o btrfs: block-group: fix free-space bitmap threshold (bsc#1176019).
  o btrfs: block-group: refactor how we delete one block group item (bsc#
    1176019).
  o btrfs: block-group: refactor how we insert a block group item (bsc#
    1176019).
  o btrfs: block-group: refactor how we read one block group item (bsc#
    1176019).
  o btrfs: block-group: rename write_one_cache_group() (bsc#1176019).
  o btrfs: do not take an extra root ref at allocation time (bsc#1176019).
  o btrfs: drop logs when we've aborted a transaction (bsc#1176019).
  o btrfs: fix a race between scrub and block group removal/allocation (bsc#
    1176019).
  o btrfs: fix crash during unmount due to race with delayed inode workers (bsc
    #1176019).
  o btrfs: free block groups after free'ing fs trees (bsc#1176019).
  o btrfs: hold a ref on the root on the dead roots list (bsc#1176019).
  o btrfs: kill the subvol_srcu (bsc#1176019).
  o btrfs: make btrfs_cleanup_fs_roots use the radix tree lock (bsc#1176019).
  o btrfs: make inodes hold a ref on their roots (bsc#1176019).
  o btrfs: make the extent buffer leak check per fs info (bsc#1176019).
  o btrfs: move ino_cache_inode dropping out of btrfs_free_fs_root (bsc#
    1176019).
  o btrfs: move the block group freeze/unfreeze helpers into block-group.c (bsc
    #1176019).
  o btrfs: move the root freeing stuff into btrfs_put_root (bsc#1176019).
  o btrfs: remove no longer necessary chunk mutex locking cases (bsc#1176019).
  o btrfs: rename member 'trimming' of block group to a more generic name (bsc#
    1176019).
  o btrfs: scrub, only lookup for csums if we are dealing with a data extent
    (bsc#1176019).
  o bus: hisi_lpc: Fixup IO ports addresses to avoid use-after-free in host
    removal (git-fixes).
  o clk: samsung: exynos4: mark 'chipid' clock as CLK_IGNORE_UNUSED
    (git-fixes).
  o clk: socfpga: stratix10: fix the divider for the emac_ptp_free_clk
    (git-fixes).
  o clk: tegra: Always program PLL_E when enabled (git-fixes).
  o clk/ti/adpll: allocate room for terminating null (git-fixes).
  o clocksource/drivers/h8300_timer8: Fix wrong return value in
    h8300_8timer_init() (git-fixes).
  o clocksource/drivers/timer-gx6605s: Fixup counter reload (git-fixes).
  o cpuidle: Poll for a minimum of 30ns and poll for a tick if lower c-states
    are disabled (bnc#1176588).
  o crypto: dh - check validity of Z before export (bsc#1175718).
  o crypto: dh - SP800-56A rev 3 local public key validation (bsc#1175718).
  o crypto: ecc - SP800-56A rev 3 local public key validation (bsc#1175718).
  o crypto: ecdh - check validity of Z before export (bsc#1175718).
  o dmaengine: mediatek: hsdma_probe: fixed a memory leak when devm_request_irq
    fails (git-fixes).
  o dmaengine: stm32-dma: use vchan_terminate_vdesc() in .terminate_all
    (git-fixes).
  o dmaengine: stm32-mdma: use vchan_terminate_vdesc() in .terminate_all
    (git-fixes).
  o dmaengine: tegra-apb: Prevent race conditions on channel's freeing
    (git-fixes).
  o dmaengine: zynqmp_dma: fix burst length configuration (git-fixes).
  o dma-fence: Serialise signal enabling (dma_fence_enable_sw_signaling)
    (git-fixes).
  o drivers: char: tlclk.c: Avoid data race between init and interrupt handler
    (git-fixes).
  o drm/amdgpu: restore proper ref count in amdgpu_display_crtc_set_config
    (git-fixes).
  o drm/radeon: revert "Prefer lower feedback dividers" (bsc#1177384).
  o e1000: Do not perform reset in reset_task if we are already down
    (git-fixes).
  o ftrace: Move RCU is watching check after recursion check (git-fixes).
  o fuse: do not ignore errors from fuse_writepages_fill() (bsc#1177193).
  o gpio: mockup: fix resource leak in error path (git-fixes).
  o gpio: rcar: Fix runtime PM imbalance on error (git-fixes).
  o gpio: siox: explicitly support only threaded irqs (git-fixes).
  o gpio: sprd: Clear interrupt when setting the type as edge (git-fixes).
  o gpio: tc35894: fix up tc35894 interrupt configuration (git-fixes).
  o hwmon: (applesmc) check status earlier (git-fixes).
  o i2c: aspeed: Mask IRQ status to relevant bits (git-fixes).
  o i2c: core: Call i2c_acpi_install_space_handler() before
    i2c_acpi_register_devices() (git-fixes).
  o i2c: i801: Exclude device from suspend direct complete optimization
    (git-fixes).
  o i2c: tegra: Prevent interrupt triggering after transfer timeout
    (git-fixes).
  o i2c: tegra: Restore pinmux on system resume (git-fixes).
  o ieee802154/adf7242: check status of adf7242_read_reg (git-fixes).
  o ieee802154: fix one possible memleak in ca8210_dev_com_init (git-fixes).
  o iio: adc: qcom-spmi-adc5: fix driver name (git-fixes).
  o Input: i8042 - add nopnp quirk for Acer Aspire 5 A515 (bsc#954532).
  o Input: trackpoint - enable Synaptics trackpoints (git-fixes).
  o iommu/amd: Fix IOMMU AVIC not properly update the is_run bit in IRTE (bsc#
    1177297).
  o iommu/amd: Fix potential @entry null deref (bsc#1177283).
  o iommu/amd: Re-factor guest virtual APIC (de-)activation code (bsc#1177284).
  o iommu/amd: Restore IRTE.RemapEn bit for amd_iommu_activate_guest_mode (bsc#
    1177285).
  o iommu/exynos: add missing put_device() call in exynos_iommu_of_xlate() (bsc
    #1177286).
  o kABI: Fix kABI for 12856e7acde4 PCI/IOV: Mark VFs as not implementing
    PCI_COMMAND_MEMORY (bsc#1176979).
  o leds: mlxreg: Fix possible buffer overflow (git-fixes).
  o lib/mpi: Add mpi_sub_ui() (bsc#1175718).
  o locking/rwsem: Disable reader optimistic spinning (bnc#1176588).
  o mac80211: do not allow bigger VHT MPDUs than the hardware supports
    (git-fixes).
  o mac80211: skip mpath lookup also for control port tx (git-fixes).
  o mac802154: tx: fix use-after-free (git-fixes).
  o media: mc-device.c: fix memleak in media_device_register_entity
    (git-fixes).
  o media: smiapp: Fix error handling at NVM reading (git-fixes).
  o media: ti-vpe: cal: Restrict DMA to avoid memory corruption (git-fixes).
  o mfd: mfd-core: Protect against NULL call-back function pointer (git-fixes).
  o mmc: core: Rework wp-gpio handling (git-fixes).
  o mmc: sdhci: Workaround broken command queuing on Intel GLK based IRBIS
    models (git-fixes).
  o mt76: add missing locking around ampdu action (git-fixes).
  o mt76: clear skb pointers from rx aggregation reorder buffer during cleanup
    (git-fixes).
  o mt76: do not use devm API for led classdev (git-fixes).
  o mt76: fix handling full tx queues in mt76_dma_tx_queue_skb_raw (git-fixes).
  o mt76: fix LED link time failure (git-fixes).
  o mtd: cfi_cmdset_0002: do not free cfi->cfiq in error path of
    cfi_amdstd_setup() (git-fixes).
  o mtd: rawnand: gpmi: Fix runtime PM imbalance on error (git-fixes).
  o mtd: rawnand: omap_elm: Fix runtime PM imbalance on error (git-fixes).
  o net: phy: realtek: fix rtl8211e rx/tx delay config (git-fixes).
  o nfs: Fix security label length not being reset (bsc#1176381).
  o PCI: Avoid double hpmemsize MMIO window assignment (git-fixes).
  o PCI/IOV: Mark VFs as not implementing PCI_COMMAND_MEMORY (bsc#1176979).
  o PCI: tegra194: Fix runtime PM imbalance on error (git-fixes).
  o PCI: tegra: Fix runtime PM imbalance on error (git-fixes).
  o phy: ti: am654: Fix a leak in serdes_am654_probe() (git-fixes).
  o pinctrl: mvebu: Fix i2c sda definition for 98DX3236 (git-fixes).
  o Platform: OLPC: Fix memleak in olpc_ec_probe (git-fixes).
  o platform/x86: fix kconfig dependency warning for FUJITSU_LAPTOP
    (git-fixes).
  o platform/x86: fix kconfig dependency warning for LG_LAPTOP (git-fixes).
  o platform/x86: intel_pmc_core: do not create a static struct device
    (git-fixes).
  o platform/x86: intel-vbtn: Switch to an allow-list for SW_TABLET_MODE
    reporting (bsc#1175599).
  o platform/x86: thinkpad_acpi: initialize tp_nvram_state variable
    (git-fixes).
  o platform/x86: thinkpad_acpi: re-initialize ACPI buffer size when reuse
    (git-fixes).
  o power: supply: max17040: Correct voltage reading (git-fixes).
  o Refresh patches.suse/
    fnic-to-not-call-scsi_done-for-unhandled-commands.patch (bsc#1168468, bsc#
    1171675).
  o rtc: ds1374: fix possible race condition (git-fixes).
  o rtc: sa1100: fix possible race condition (git-fixes).
  o s390/pci: Mark all VFs as not implementing PCI_COMMAND_MEMORY (bsc#
    1176979).
  o sched/fair: Ignore cache hotness for SMT migration (bnc#1155798 (CPU
    scheduler functional and performance backports)).
  o sched/fair: Use dst group while checking imbalance for NUMA balancer (bnc#
    1155798 (CPU scheduler functional and performance backports)).
  o sched/numa: Avoid creating large imbalances at task creation time (bnc#
    1176588).
  o sched/numa: Check numa balancing information only when enabled (bnc#
    1176588).
  o sched/numa: Use runnable_avg to classify node (bnc#1155798 (CPU scheduler
    functional and performance backports)).
  o scsi: iscsi: iscsi_tcp: Avoid holding spinlock while calling getpeername()
    (bsc#1177258).
  o serial: 8250: 8250_omap: Terminate DMA before pushing data on RX timeout
    (git-fixes).
  o serial: 8250_omap: Fix sleeping function called from invalid context during
    probe (git-fixes).
  o serial: 8250_port: Do not service RX FIFO if throttled (git-fixes).
  o serial: uartps: Wait for tx_empty in console setup (git-fixes).
  o spi: fsl-espi: Only process interrupts for expected events (git-fixes).
  o staging:r8188eu: avoid skb_clone for amsdu to msdu conversion (git-fixes).
  o thermal: rcar_thermal: Handle probe error gracefully (git-fixes).
  o Update config files. Enable ACPI_PCI_SLOT and HOTPLUG_PCI_ACPI (bsc#
    1177194).
  o usb: dwc3: Increase timeout for CmdAct cleared by device controller
    (git-fixes).
  o USB: EHCI: ehci-mv: fix error handling in mv_ehci_probe() (git-fixes).
  o USB: EHCI: ehci-mv: fix less than zero comparison of an unsigned int
    (git-fixes).
  o USB: gadget: f_ncm: Fix NDP16 datagram validation (git-fixes).
  o vfio/pci: Decouple PCI_COMMAND_MEMORY bit checks from is_virtfn (bsc#
    1176979).
  o vmxnet3: fix cksum offload issues for non-udp tunnels (git-fixes).
  o wlcore: fix runtime pm imbalance in wl1271_tx_work (git-fixes).
  o wlcore: fix runtime pm imbalance in wlcore_regdomain_config (git-fixes).
  o xen/events: do not use chip_data for legacy IRQs (bsc#1065600).
  o yam: fix possible memory leak in yam_init_driver (git-fixes).

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:

  o SUSE Linux Enterprise Module for Realtime 15-SP2:
    zypper in -t patch SUSE-SLE-Module-RT-15-SP2-2020-3230=1

Package List:

  o SUSE Linux Enterprise Module for Realtime 15-SP2 (x86_64):
       cluster-md-kmp-rt-5.3.18-13.1
       cluster-md-kmp-rt-debuginfo-5.3.18-13.1
       dlm-kmp-rt-5.3.18-13.1
       dlm-kmp-rt-debuginfo-5.3.18-13.1
       gfs2-kmp-rt-5.3.18-13.1
       gfs2-kmp-rt-debuginfo-5.3.18-13.1
       kernel-rt-5.3.18-13.1
       kernel-rt-debuginfo-5.3.18-13.1
       kernel-rt-debugsource-5.3.18-13.1
       kernel-rt-devel-5.3.18-13.1
       kernel-rt-devel-debuginfo-5.3.18-13.1
       kernel-rt_debug-debuginfo-5.3.18-13.1
       kernel-rt_debug-debugsource-5.3.18-13.1
       kernel-rt_debug-devel-5.3.18-13.1
       kernel-rt_debug-devel-debuginfo-5.3.18-13.1
       kernel-syms-rt-5.3.18-13.1
       ocfs2-kmp-rt-5.3.18-13.1
       ocfs2-kmp-rt-debuginfo-5.3.18-13.1
  o SUSE Linux Enterprise Module for Realtime 15-SP2 (noarch):
       kernel-devel-rt-5.3.18-13.1
       kernel-source-rt-5.3.18-13.1


References:

  o https://www.suse.com/security/cve/CVE-2020-25212.html
  o https://www.suse.com/security/cve/CVE-2020-25641.html
  o https://www.suse.com/security/cve/CVE-2020-25643.html
  o https://www.suse.com/security/cve/CVE-2020-25645.html
  o https://bugzilla.suse.com/1065600
  o https://bugzilla.suse.com/1155798
  o https://bugzilla.suse.com/1168468
  o https://bugzilla.suse.com/1171675
  o https://bugzilla.suse.com/1175599
  o https://bugzilla.suse.com/1175718
  o https://bugzilla.suse.com/1176019
  o https://bugzilla.suse.com/1176381
  o https://bugzilla.suse.com/1176588
  o https://bugzilla.suse.com/1176979
  o https://bugzilla.suse.com/1177027
  o https://bugzilla.suse.com/1177121
  o https://bugzilla.suse.com/1177193
  o https://bugzilla.suse.com/1177194
  o https://bugzilla.suse.com/1177206
  o https://bugzilla.suse.com/1177258
  o https://bugzilla.suse.com/1177283
  o https://bugzilla.suse.com/1177284
  o https://bugzilla.suse.com/1177285
  o https://bugzilla.suse.com/1177286
  o https://bugzilla.suse.com/1177297
  o https://bugzilla.suse.com/1177384
  o https://bugzilla.suse.com/1177511
  o https://bugzilla.suse.com/954532

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