Hash: SHA256

             AUSCERT External Security Bulletin Redistribution

                   Security update for the Linux Kernel
                              3 January 2023


        AusCERT Security Bulletin Summary

Product:           Linux Kernel
Publisher:         SUSE
Operating System:  SUSE
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-45934 CVE-2022-43945 CVE-2022-43750
                   CVE-2022-42896 CVE-2022-42895 CVE-2022-42703
                   CVE-2022-41858 CVE-2022-41850 CVE-2022-40768
                   CVE-2022-40307 CVE-2022-39189 CVE-2022-28748
                   CVE-2022-28693 CVE-2022-4378 CVE-2022-4139
                   CVE-2022-4129 CVE-2022-4095 CVE-2022-3903
                   CVE-2022-3707 CVE-2022-3649 CVE-2022-3646
                   CVE-2022-3635 CVE-2022-3629 CVE-2022-3628
                   CVE-2022-3625 CVE-2022-3621 CVE-2022-3594
                   CVE-2022-3586 CVE-2022-3577 CVE-2022-3567
                   CVE-2022-3565 CVE-2022-3545 CVE-2022-3542
                   CVE-2022-3535 CVE-2022-3524 CVE-2022-3521
                   CVE-2022-3176 CVE-2022-3169 CVE-2022-2978
                   CVE-2022-2964 CVE-2022-2602 CVE-2022-2153

Original Bulletin: 

Comment: CVSS (Max):  8.8 CVE-2022-43945 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
         CVSS Source: SUSE
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

- --------------------------BEGIN INCLUDED TEXT--------------------

SUSE Security Update: Security update for the Linux Kernel


Announcement ID:   SUSE-SU-2022:4614-1
Rating:            important
References:        #1198702 #1199365 #1200845 #1201725 #1202686 #1202700
                   #1203008 #1203066 #1203067 #1203322 #1203391 #1203496
                   #1203514 #1203860 #1203960 #1204017 #1204053 #1204168
                   #1204170 #1204354 #1204355 #1204402 #1204414 #1204415
                   #1204417 #1204424 #1204431 #1204432 #1204439 #1204446
                   #1204470 #1204479 #1204486 #1204574 #1204575 #1204576
                   #1204631 #1204635 #1204636 #1204637 #1204646 #1204647
                   #1204653 #1204780 #1204850 #1205128 #1205130 #1205220
                   #1205473 #1205514 #1205617 #1205671 #1205700 #1205705
                   #1205709 #1205711 #1205796 #1206207 #1206228
Cross-References:  CVE-2021-4037 CVE-2022-2153 CVE-2022-2602 CVE-2022-28693
                   CVE-2022-28748 CVE-2022-2964 CVE-2022-2978 CVE-2022-3169
                   CVE-2022-3176 CVE-2022-3521 CVE-2022-3524 CVE-2022-3535
                   CVE-2022-3542 CVE-2022-3545 CVE-2022-3565 CVE-2022-3567
                   CVE-2022-3577 CVE-2022-3586 CVE-2022-3594 CVE-2022-3621
                   CVE-2022-3625 CVE-2022-3628 CVE-2022-3629 CVE-2022-3635
                   CVE-2022-3646 CVE-2022-3649 CVE-2022-3707 CVE-2022-3903
                   CVE-2022-39189 CVE-2022-40307 CVE-2022-40768 CVE-2022-4095
                   CVE-2022-4129 CVE-2022-4139 CVE-2022-41850 CVE-2022-41858
                   CVE-2022-42703 CVE-2022-42895 CVE-2022-42896 CVE-2022-43750
                   CVE-2022-4378 CVE-2022-43945 CVE-2022-45934
Affected Products:
                   SUSE Linux Enterprise Real Time Extension 12-SP5

An update that solves 43 vulnerabilities and has 16 fixes is now available.


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

The following security bugs were fixed:

  o CVE-2022-4378: Fixed stack overflow in __do_proc_dointvec (bsc#1206207).
  o CVE-2022-3635: Fixed a use-after-free in the tst_timer() of the file
    drivers/atm/idt77252.c (bsc#1204631).
  o CVE-2022-41850: Fixed a race condition in roccat_report_event() in drivers/
    hid/hid-roccat.c (bsc#1203960).
  o CVE-2022-45934: Fixed a integer wraparound via L2CAP_CONF_REQ packets in
    l2cap_config_req in net/bluetooth/l2cap_core.c (bsc#1205796).
  o CVE-2022-3628: Fixed potential buffer overflow in brcmf_fweh_event_worker()
    in wifi/brcmfmac (bsc#1204868).
  o CVE-2022-3567: Fixed a to race condition in inet6_stream_ops()/
    inet6_dgram_ops() (bsc#1204414).
  o CVE-2022-41858: Fixed a denial of service in sl_tx_timeout() in drivers/net
    /slip (bsc#1205671).
  o CVE-2022-43945: Fixed a buffer overflow in the NFSD implementation (bsc#
  o CVE-2022-4095: Fixed a use-after-free in rtl8712 driver (bsc#1205514).
  o CVE-2022-3903: Fixed a denial of service with the Infrared Transceiver USB
    driver (bsc#1205220).
  o CVE-2022-42895: Fixed an information leak in the net/bluetooth/
    l2cap_core.c's l2cap_parse_conf_req() which can be used to leak kernel
    pointers remotely (bsc#1205705).
  o CVE-2022-42896: Fixed a use-after-free vulnerability in the net/bluetooth/
    l2cap_core.c's l2cap_connect() and l2cap_le_connect_req() which may have
    allowed code execution and leaking kernel memory (respectively) remotely
    via Bluetooth (bsc#1205709).
  o CVE-2022-2602: Fixed a local privilege escalation vulnerability involving
    Unix socket Garbage Collection and io_uring (bsc#1204228).
  o CVE-2022-4139: Fixed an issue with the i915 driver that allowed the GPU to
    access any physical memory (bsc#1205700).
  o CVE-2022-4129: Fixed a denial of service with the Layer 2 Tunneling
    Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a
    race condition and NULL pointer dereference. (bsc#1205711)
  o CVE-2022-3707: Fixed a double free in the Intel GVT-g graphics driver (bsc#
  o CVE-2022-2964: Fixed memory corruption issues in ax88179_178a devices (bsc#
  o CVE-2021-4037: Fixed function logic vulnerability that allowed local users
    to create files for the XFS file-system with an unintended group ownership
    and with group execution and SGID permission bits set (bsc#1198702).
  o CVE-2022-43750: Fixed vulnerability in usbmon that allowed a user-space
    client to corrupt the monitor's internal memory (bsc#1204653).
  o CVE-2022-3542: Fixed memory leak in bnx2x_tpa_stop() in drivers/net/
    ethernet/broadcom/bnx2x/bnx2x_cmn.c (bsc#1204402).
  o CVE-2022-3629: Fixed memory leak in vsock_connect() in net/vmw_vsock/
    af_vsock.c (bsc#1204635).
  o CVE-2022-3646: Fixed memory leak in nilfs_attach_log_writer() in fs/nilfs2/
    segment.c (bsc#1204646).
  o CVE-2022-3649: Fixed use-after-free in nilfs_new_inode() in fs/nilfs2/
    inode.c (bsc#1204647).
  o CVE-2022-3621: Fixed null pointer dereference in nilfs_bmap_lookup_at_level
    () in fs/nilfs2/inode.c (bsc#1204574).
  o CVE-2022-3594: Fixed excessive data logging in intr_callback() in drivers/
    net/usb/r8152.c (bsc#1204479).
  o CVE-2022-3586: Fixed use-after-free in socket buffer (SKB) that could allow
    a local unprivileged user to cause a denial of service (bsc#1204439).
  o CVE-2022-3565: Fixed use-after-free in del_timer() in drivers/isdn/mISDN/
    l1oip_core.c (bsc#1204431).
  o CVE-2022-3524: Fixed memory leak in ipv6_renew_options() in the IPv6
    handler (bsc#1204354).
  o CVE-2022-40768: Fixed information leak in the scsi driver which allowed
    local users to obtain sensitive information from kernel memory (bsc#
  o CVE-2022-42703: Fixed use-after-free in mm/rmap.c related to leaf anon_vma
    double reuse (bsc#1204168).
  o CVE-2022-3169: Fixed an denial of service though request to
  o CVE-2022-40307: Fixed a race condition that could had been exploited to
    trigger a use-after-free in the efi firmware capsule-loader.c (bsc#
  o CVE-2022-3176: Fixed a use-after-free in io_uring related to signalfd_poll
    () and binder_poll() (bsc#1203391).
  o CVE-2022-3625: Fixed a user-after-free vulnerability in devlink_param_set/
    devlink_param_get of the file net/core/devlink.c (bsc#1204637).
  o CVE-2022-3535: Fixed a memory leak in mvpp2_dbgfs_port_init of the file
    drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c (bsc#1204417).
  o CVE-2022-3545: Fixed a use-after-free in area_cache_get() of the file
    drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c (bsc#1204415).
  o CVE-2022-39189: Fixed an issue were an unprivileged guest users can
    compromise the guest kernel because TLB flush operations were mishandled in
    certain KVM_VCPU_PREEMPTED situations (bsc#1203066).
  o CVE-2022-3577: Fixed an out-of-bounds memory write in bigben_probe of
    drivers/hid/hid-bigbenff.c (bsc#1204470).
  o CVE-2022-3521: Fixed a race condition in kcm_tx_work() of the file net/kcm/
    kcmsock.c (bsc#1204355).
  o CVE-2022-2153: Fixed a NULL pointer dereference in the KVM subsystem, when
    attempting to set a SynIC IRQ (bsc#1200788).
  o CVE-2022-2978: Fixed a use-after-free in the NILFS file system (bsc#

The following non-security bugs were fixed:

  o Drivers: hv: vmbus: Add VMbus IMC device to unsupported list (git-fixes).
  o Drivers: hv: vmbus: Add vmbus_requestor data structure for VMBus hardening
  o Drivers: hv: vmbus: Allow cleanup of VMBUS_CONNECT_CPU if disconnected (bsc
  o Drivers: hv: vmbus: Always handle the VMBus messages on CPU0 (bsc#1204017).
  o Drivers: hv: vmbus: Do not bind the offer&rescind works to a specific CPU
  o Drivers: hv: vmbus: Drop error message when 'No request id available' (bsc#
  o Drivers: hv: vmbus: Fix handling of messages with transaction ID of zero
  o Drivers: hv: vmbus: Fix potential crash on module unload (git-fixes).
  o Drivers: hv: vmbus: Introduce vmbus_request_addr_match() (bsc#1204017).
  o Drivers: hv: vmbus: Introduce vmbus_sendpacket_getid() (bsc#1204017).
  o Drivers: hv: vmbus: Introduce {lock,unlock}_requestor() (bsc#1204017).
  o Drivers: hv: vmbus: Move __vmbus_open() (bsc#1204017).
  o Drivers: hv: vmbus: Prevent load re-ordering when reading ring buffer
  o Drivers: hv: vmbus: Replace smp_store_mb() with virt_store_mb() (bsc#
  o Drivers: hv: vmbus: Replace the per-CPU channel lists with a global array
    of channels (bsc#1204017).
  o Drivers: hv: vmbus: Use a spin lock for synchronizing channel scheduling
    vs. channel removal (bsc#1204017).
  o Drivers: hv: vmbus: fix double free in the error path of
    vmbus_add_channel_work() (git-fixes).
  o Drivers: hv: vmbus: fix possible memory leak in vmbus_device_register()
  o PCI: hv: Add check for hyperv_initialized in init_hv_pci_drv() (bsc#
  o PCI: hv: Add hibernation support (bsc#1204446).
  o PCI: hv: Add validation for untrusted Hyper-V values (bsc#1204017).
  o PCI: hv: Drop msi_controller structure (bsc#1204446).
  o PCI: hv: Fix NUMA node assignment when kernel boots with custom NUMA
    topology (bsc#1199365).
  o PCI: hv: Fix a race condition when removing the device (bsc#1204446).
  o PCI: hv: Fix hibernation in case interrupts are not re-created (bsc#
  o PCI: hv: Fix hv_arch_irq_unmask() for multi-MSI (bsc#1200845).
  o PCI: hv: Fix interrupt mapping for multi-MSI (bsc#1200845).
  o PCI: hv: Fix multi-MSI to allow more than one MSI vector (bsc#1200845).
  o PCI: hv: Fix sleep while in non-sleep context when removing child devices
    from the bus (bsc#1204446).
  o PCI: hv: Fix synchronization between channel callback and
    hv_compose_msi_msg() (bsc#1204017, bsc#1203860).
  o PCI: hv: Fix synchronization between channel callback and hv_pci_bus_exit()
  o PCI: hv: Fix the definition of vector in hv_compose_msi_msg() (bsc#
  o PCI: hv: Make the code arch neutral by adding arch specific interfaces (bsc
  o PCI: hv: Only reuse existing IRTE allocation for Multi-MSI (bsc#1200845).
  o PCI: hv: Prepare hv_compose_msi_msg() for the
    VMBus-channel-interrupt-to-vCPU reassignment functionality (bsc#1204017).
  o PCI: hv: Remove bus device removal unused refcount/functions (bsc#1204446).
  o PCI: hv: Remove unnecessary use of %hx (bsc#1204446).
  o PCI: hv: Reuse existing IRTE allocation in compose_msi_msg() (bsc#1200845).
  o PCI: hv: Support for create interrupt v3 (bsc#1204446).
  o PCI: hv: Use PCI_ERROR_RESPONSE to identify config read errors (bsc#
  o PCI: hv: Use struct_size() helper (bsc#1204446).
  o PCI: hv: Use vmbus_requestor to generate transaction IDs for VMbus
    hardening (bsc#1204017).
  o exfat: Return ENAMETOOLONG consistently for oversized paths (bsc#1204053
  o hv_netvsc: Add check for kvmalloc_array (git-fixes).
  o hv_netvsc: Add error handling while switching data path (bsc#1204850).
  o hv_netvsc: Add the support of hibernation (bsc#1204017).
  o hv_netvsc: Add validation for untrusted Hyper-V values (bsc#1204017).
  o hv_netvsc: Cache the current data path to avoid duplicate call and message
  o hv_netvsc: Check VF datapath when sending traffic to VF (bsc#1204017).
  o hv_netvsc: Fix hibernation for mlx5 VF driver (bsc#1204850).
  o hv_netvsc: Fix potential dereference of NULL pointer (bsc#1204017).
  o hv_netvsc: Fix race between VF offering and VF association message from
    host (bsc#1204850).
  o hv_netvsc: Print value of invalid ID in netvsc_send_
    {completion,tx_complete}() (bsc#1204017).
  o hv_netvsc: Process NETDEV_GOING_DOWN on VF hot remove (bsc#1204850).
  o hv_netvsc: Remove unnecessary round_up for recv_completion_cnt (bsc#
  o hv_netvsc: Reset the RSC count if NVSP_STAT_FAIL in netvsc_receive() (bsc#
  o hv_netvsc: Switch the data path at the right time during hibernation (bsc#
  o hv_netvsc: Use vmbus_requestor to generate transaction IDs for VMBus
    hardening (bsc#1204017).
  o hv_netvsc: Wait for completion on request SWITCH_DATA_PATH (bsc#1204017).
  o hv_netvsc: use netif_is_bond_master() instead of open code (git-fixes).
  o mm/hugetlb: fix races when looking up a CONT-PTE/PMD size hugetlb page (bsc
  o net: hyperv: remove use of bpf_op_t (git-fixes).
  o net: mana: Add rmb after checking owner bits (git-fixes).
  o net: netvsc: remove break after return (git-fixes).
  o scsi: storvsc: Drop DID_TARGET_FAILURE use (git-fixes).
  o scsi: storvsc: Fix max_outstanding_req_per_channel for Win8 and newer (bsc#
  o scsi: storvsc: Fix validation for unsolicited incoming packets (bsc#
  o scsi: storvsc: Remove WQ_MEM_RECLAIM from storvsc_error_wq (git-fixes).
  o scsi: storvsc: Resolve data race in storvsc_probe() (bsc#1204017).
  o scsi: storvsc: Use blk_mq_unique_tag() to generate requestIDs (bsc#
  o scsi: storvsc: Use vmbus_requestor to generate transaction IDs for VMBus
    hardening (bsc#1204017).
  o scsi: storvsc: Validate length of incoming packet in
    storvsc_on_channel_callback() (bsc#1204017).
  o x86/cpu: Restore AMD's DE_CFG MSR after resume (bsc#1205473).
  o x86/hyperv: Output host build info as normal Windows version number
  o xfs: reserve data and rt quota at the same time (bsc#1203496).

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 Real Time Extension 12-SP5:
    zypper in -t patch SUSE-SLE-RT-12-SP5-2022-4614=1

Package List:

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


  o https://www.suse.com/security/cve/CVE-2021-4037.html
  o https://www.suse.com/security/cve/CVE-2022-2153.html
  o https://www.suse.com/security/cve/CVE-2022-2602.html
  o https://www.suse.com/security/cve/CVE-2022-28693.html
  o https://www.suse.com/security/cve/CVE-2022-28748.html
  o https://www.suse.com/security/cve/CVE-2022-2964.html
  o https://www.suse.com/security/cve/CVE-2022-2978.html
  o https://www.suse.com/security/cve/CVE-2022-3169.html
  o https://www.suse.com/security/cve/CVE-2022-3176.html
  o https://www.suse.com/security/cve/CVE-2022-3521.html
  o https://www.suse.com/security/cve/CVE-2022-3524.html
  o https://www.suse.com/security/cve/CVE-2022-3535.html
  o https://www.suse.com/security/cve/CVE-2022-3542.html
  o https://www.suse.com/security/cve/CVE-2022-3545.html
  o https://www.suse.com/security/cve/CVE-2022-3565.html
  o https://www.suse.com/security/cve/CVE-2022-3567.html
  o https://www.suse.com/security/cve/CVE-2022-3577.html
  o https://www.suse.com/security/cve/CVE-2022-3586.html
  o https://www.suse.com/security/cve/CVE-2022-3594.html
  o https://www.suse.com/security/cve/CVE-2022-3621.html
  o https://www.suse.com/security/cve/CVE-2022-3625.html
  o https://www.suse.com/security/cve/CVE-2022-3628.html
  o https://www.suse.com/security/cve/CVE-2022-3629.html
  o https://www.suse.com/security/cve/CVE-2022-3635.html
  o https://www.suse.com/security/cve/CVE-2022-3646.html
  o https://www.suse.com/security/cve/CVE-2022-3649.html
  o https://www.suse.com/security/cve/CVE-2022-3707.html
  o https://www.suse.com/security/cve/CVE-2022-3903.html
  o https://www.suse.com/security/cve/CVE-2022-39189.html
  o https://www.suse.com/security/cve/CVE-2022-40307.html
  o https://www.suse.com/security/cve/CVE-2022-40768.html
  o https://www.suse.com/security/cve/CVE-2022-4095.html
  o https://www.suse.com/security/cve/CVE-2022-4129.html
  o https://www.suse.com/security/cve/CVE-2022-4139.html
  o https://www.suse.com/security/cve/CVE-2022-41850.html
  o https://www.suse.com/security/cve/CVE-2022-41858.html
  o https://www.suse.com/security/cve/CVE-2022-42703.html
  o https://www.suse.com/security/cve/CVE-2022-42895.html
  o https://www.suse.com/security/cve/CVE-2022-42896.html
  o https://www.suse.com/security/cve/CVE-2022-43750.html
  o https://www.suse.com/security/cve/CVE-2022-4378.html
  o https://www.suse.com/security/cve/CVE-2022-43945.html
  o https://www.suse.com/security/cve/CVE-2022-45934.html
  o https://bugzilla.suse.com/1198702
  o https://bugzilla.suse.com/1199365
  o https://bugzilla.suse.com/1200845
  o https://bugzilla.suse.com/1201725
  o https://bugzilla.suse.com/1202686
  o https://bugzilla.suse.com/1202700
  o https://bugzilla.suse.com/1203008
  o https://bugzilla.suse.com/1203066
  o https://bugzilla.suse.com/1203067
  o https://bugzilla.suse.com/1203322
  o https://bugzilla.suse.com/1203391
  o https://bugzilla.suse.com/1203496
  o https://bugzilla.suse.com/1203514
  o https://bugzilla.suse.com/1203860
  o https://bugzilla.suse.com/1203960
  o https://bugzilla.suse.com/1204017
  o https://bugzilla.suse.com/1204053
  o https://bugzilla.suse.com/1204168
  o https://bugzilla.suse.com/1204170
  o https://bugzilla.suse.com/1204354
  o https://bugzilla.suse.com/1204355
  o https://bugzilla.suse.com/1204402
  o https://bugzilla.suse.com/1204414
  o https://bugzilla.suse.com/1204415
  o https://bugzilla.suse.com/1204417
  o https://bugzilla.suse.com/1204424
  o https://bugzilla.suse.com/1204431
  o https://bugzilla.suse.com/1204432
  o https://bugzilla.suse.com/1204439
  o https://bugzilla.suse.com/1204446
  o https://bugzilla.suse.com/1204470
  o https://bugzilla.suse.com/1204479
  o https://bugzilla.suse.com/1204486
  o https://bugzilla.suse.com/1204574
  o https://bugzilla.suse.com/1204575
  o https://bugzilla.suse.com/1204576
  o https://bugzilla.suse.com/1204631
  o https://bugzilla.suse.com/1204635
  o https://bugzilla.suse.com/1204636
  o https://bugzilla.suse.com/1204637
  o https://bugzilla.suse.com/1204646
  o https://bugzilla.suse.com/1204647
  o https://bugzilla.suse.com/1204653
  o https://bugzilla.suse.com/1204780
  o https://bugzilla.suse.com/1204850
  o https://bugzilla.suse.com/1205128
  o https://bugzilla.suse.com/1205130
  o https://bugzilla.suse.com/1205220
  o https://bugzilla.suse.com/1205473
  o https://bugzilla.suse.com/1205514
  o https://bugzilla.suse.com/1205617
  o https://bugzilla.suse.com/1205671
  o https://bugzilla.suse.com/1205700
  o https://bugzilla.suse.com/1205705
  o https://bugzilla.suse.com/1205709
  o https://bugzilla.suse.com/1205711
  o https://bugzilla.suse.com/1205796
  o https://bugzilla.suse.com/1206207
  o https://bugzilla.suse.com/1206228

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from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:


Australian Computer Emergency Response Team
The University of Queensland
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
Comment: https://auscert.org.au/gpg-key/