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             AUSCERT External Security Bulletin Redistribution

                   Security update for the Linux Kernel
                               20 April 2022


        AusCERT Security Bulletin Summary

Product:           Linux Kernel
Publisher:         SUSE
Operating System:  SUSE
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-28748 CVE-2022-28390 CVE-2022-28389
                   CVE-2022-28388 CVE-2022-27666 CVE-2022-26966
                   CVE-2022-26490 CVE-2022-25375 CVE-2022-25258
                   CVE-2022-24959 CVE-2022-24958 CVE-2022-24448
                   CVE-2022-23042 CVE-2022-23041 CVE-2022-23040
                   CVE-2022-23039 CVE-2022-23038 CVE-2022-23037
                   CVE-2022-23036 CVE-2022-1055 CVE-2022-1048
                   CVE-2022-1016 CVE-2022-0854 CVE-2022-0850
                   CVE-2022-0644 CVE-2022-0617 CVE-2022-0516
                   CVE-2022-0492 CVE-2022-0487 CVE-2021-45868
                   CVE-2021-44879 CVE-2021-39698 CVE-2021-0920

Original Bulletin: 

Comment: CVSS (Max):  8.4 CVE-2022-1055 (CVSS:3.1/AV:L/AC:L/PR:N/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:L/AC:L/PR:N/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-2022:1257-1
Rating:            important
References:        #1179639 #1189126 #1189562 #1193731 #1194516 #1194943
                   #1195051 #1195254 #1195286 #1195353 #1195403 #1195516
                   #1195543 #1195612 #1195897 #1195905 #1195939 #1195987
                   #1196018 #1196079 #1196095 #1196155 #1196196 #1196235
                   #1196468 #1196488 #1196612 #1196761 #1196776 #1196823
                   #1196830 #1196836 #1196956 #1197227 #1197331 #1197366
                   #1197389 #1197462 #1197702 #1198031 #1198032 #1198033
Cross-References:  CVE-2021-0920 CVE-2021-39698 CVE-2021-44879 CVE-2021-45868
                   CVE-2022-0487 CVE-2022-0492 CVE-2022-0516 CVE-2022-0617
                   CVE-2022-0644 CVE-2022-0850 CVE-2022-0854 CVE-2022-1016
                   CVE-2022-1048 CVE-2022-1055 CVE-2022-23036 CVE-2022-23037
                   CVE-2022-23038 CVE-2022-23039 CVE-2022-23040 CVE-2022-23041
                   CVE-2022-23042 CVE-2022-24448 CVE-2022-24958 CVE-2022-24959
                   CVE-2022-25258 CVE-2022-25375 CVE-2022-26490 CVE-2022-26966
                   CVE-2022-27666 CVE-2022-28388 CVE-2022-28389 CVE-2022-28390
Affected Products:
                   SUSE Linux Enterprise Micro 5.0
                   SUSE Linux Enterprise Module for Realtime 15-SP2
                   SUSE Linux Enterprise Real Time 15-SP2

An update that solves 33 vulnerabilities, contains one feature and has 9 fixes
is now available.


The SUSE Linux Enterprise 15 SP2 RT kernel was updated to receive various
security bugfixes.

The following security bugs were fixed:

  o CVE-2022-0854: Fixed a memory leak flaw was found in the Linux kernels DMA
    subsystem. This flaw allowed a local user to read random memory from the
    kernel space (bnc#1196823).
  o CVE-2022-28388: Fixed a double free in drivers/net/can/usb/usb_8dev.c
    vulnerability in the Linux kernel (bnc#1198032).
  o CVE-2022-28389: Fixed a double free in drivers/net/can/usb/mcba_usb.c
    vulnerability in the Linux kernel (bnc#1198033).
  o CVE-2022-28390: Fixed a double free in drivers/net/can/usb/ems_usb.c
    vulnerability in the Linux kernel (bnc#1198031).
  o CVE-2022-1048: Fixed a race Condition in snd_pcm_hw_free leading to
    use-after-free due to the AB/BA lock with buffer_mutex and mmap_lock (bsc#
  o CVE-2022-1055: Fixed a use-after-free in tc_new_tfilter that could allow a
    local attacker to gain privilege escalation (bnc#1197702).
  o CVE-2022-27666: Fixed a buffer overflow vulnerability in IPsec ESP
    transformation code. This flaw allowed a local attacker with a normal user
    privilege to overwrite kernel heap objects and may cause a local privilege
    escalation (bnc#1197462).
  o CVE-2021-45868: Fixed a wrong validation check in fs/quota/quota_tree.c
    which could lead to an use-after-free if there is a corrupted quota file
  o CVE-2022-26966: Fixed an issue in drivers/net/usb/sr9700.c, which allowed
    attackers to obtain sensitive information from the memory via crafted frame
    lengths from a USB device (bsc#1196836).
  o CVE-2021-39698: Fixed a possible memory corruption due to a use after free
    in aio_poll_complete_work. This could lead to local escalation of privilege
    with no additional execution privileges needed (bsc#1196956).
  o CVE-2021-0920: Fixed a local privilege escalation due to a use-after-free
    bug in unix_gc (bsc#1193731). -

CVE-2022-23041,CVE-2022-23042: Fixed multiple issues which could have lead to
read/write access to memory pages or denial of service. These issues are
related to the Xen PV device frontend drivers (bsc#1196488).
CVE-2022-26490: Fixed a buffer overflow in the st21nfca driver. An attacker
with adjacent NFC access could trigger crash the system or corrupt system
memory (bsc#1196830).
CVE-2022-0617: Fixed a null pointer dereference in UDF file system
functionality. A local user could crash the system by triggering
udf_file_write_iter() via a malicious UDF image (bsc#1196079).
CVE-2022-25375: The RNDIS USB gadget lacks validation of the size of the
RNDIS_MSG_SET command. Attackers can obtain sensitive information from kernel
memory (bsc#1196235).
CVE-2022-25258: The USB Gadget subsystem lacked certain validation of interface
OS descriptor requests, which could have lead to memory corruption (bsc#
CVE-2021-44879: In gc_data_segment() in fs/f2fs/gc.c, special files were not
considered, which lead to a move_data_page NULL pointer dereference (bsc#
CVE-2022-24959: Fixed a memory leak in yam_siocdevprivate() in drivers/net/
hamradio/yam.c (bsc#1195897).
CVE-2022-24958: drivers/usb/gadget/legacy/inode.c mishandled dev->buf release
CVE-2022-0516: Fixed missing check in ioctl related to KVM in s390 allows
kernel memory read/write (bsc#1195516).
CVE-2022-24448: Fixed an issue in fs/nfs/dir.c. If an application sets the
O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs
a regular lookup. If a regular file is found, ENOTDIR should have occured, but
the server instead returned uninitialized data in the file descriptor (bsc#
CVE-2022-0492: Fixed a privilege escalation related to cgroups v1 release_agent
feature, which allowed bypassing namespace isolation unexpectedly (bsc#
CVE-2022-28748: Fixed various information leaks that could be caused by
malicious USB devices (bsc#1196018).
CVE-2022-0644: Fixed a denial of service by a local user. A assertion failure
could be triggered in kernel_read_file_from_fd() (bsc#1196155)
CVE-2022-0850: Fixed a kernel information leak vulnerability in iov_iter.c (bsc
CVE-2022-1016: Fixed a vulnerability in the nf_tables component of the
netfilter subsystem. This vulnerability gives an attacker a powerful primitive
that can be used to both read from and write to relative stack data, which can
lead to arbitrary code execution (bsc#1197227).

The following non-security bugs were fixed:

  o cifs: use the correct max-length for dentry_path_raw() (bsc#1196196).
  o gve: multiple bugfixes (jsc#SLE-23652).
  o net/mlx5e: Fix page DMA map/unmap attributes (bsc#1196468).
  o netfilter: conntrack: do not refresh sctp entries in closed state (bsc#
  o powerpc/mm/numa: skip NUMA_NO_NODE onlining in parse_numa_properties() (bsc
  o scsi: lpfc: Fix pt2pt NVMe PRLI reject LOGO loop (bsc#1189126).
  o scsi: target: iscsi: Fix cmd abort fabric stop race (bsc#1195286).

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-SP2-2022-1257=1
  o SUSE Linux Enterprise Micro 5.0:
    zypper in -t patch SUSE-SUSE-MicroOS-5.0-2022-1257=1

Package List:

  o SUSE Linux Enterprise Module for Realtime 15-SP2 (noarch):
  o SUSE Linux Enterprise Module for Realtime 15-SP2 (x86_64):
  o SUSE Linux Enterprise Micro 5.0 (x86_64):


  o https://www.suse.com/security/cve/CVE-2021-0920.html
  o https://www.suse.com/security/cve/CVE-2021-39698.html
  o https://www.suse.com/security/cve/CVE-2021-44879.html
  o https://www.suse.com/security/cve/CVE-2021-45868.html
  o https://www.suse.com/security/cve/CVE-2022-0487.html
  o https://www.suse.com/security/cve/CVE-2022-0492.html
  o https://www.suse.com/security/cve/CVE-2022-0516.html
  o https://www.suse.com/security/cve/CVE-2022-0617.html
  o https://www.suse.com/security/cve/CVE-2022-0644.html
  o https://www.suse.com/security/cve/CVE-2022-0850.html
  o https://www.suse.com/security/cve/CVE-2022-0854.html
  o https://www.suse.com/security/cve/CVE-2022-1016.html
  o https://www.suse.com/security/cve/CVE-2022-1048.html
  o https://www.suse.com/security/cve/CVE-2022-1055.html
  o https://www.suse.com/security/cve/CVE-2022-23036.html
  o https://www.suse.com/security/cve/CVE-2022-23037.html
  o https://www.suse.com/security/cve/CVE-2022-23038.html
  o https://www.suse.com/security/cve/CVE-2022-23039.html
  o https://www.suse.com/security/cve/CVE-2022-23040.html
  o https://www.suse.com/security/cve/CVE-2022-23041.html
  o https://www.suse.com/security/cve/CVE-2022-23042.html
  o https://www.suse.com/security/cve/CVE-2022-24448.html
  o https://www.suse.com/security/cve/CVE-2022-24958.html
  o https://www.suse.com/security/cve/CVE-2022-24959.html
  o https://www.suse.com/security/cve/CVE-2022-25258.html
  o https://www.suse.com/security/cve/CVE-2022-25375.html
  o https://www.suse.com/security/cve/CVE-2022-26490.html
  o https://www.suse.com/security/cve/CVE-2022-26966.html
  o https://www.suse.com/security/cve/CVE-2022-27666.html
  o https://www.suse.com/security/cve/CVE-2022-28388.html
  o https://www.suse.com/security/cve/CVE-2022-28389.html
  o https://www.suse.com/security/cve/CVE-2022-28390.html
  o https://www.suse.com/security/cve/CVE-2022-28748.html
  o https://bugzilla.suse.com/1179639
  o https://bugzilla.suse.com/1189126
  o https://bugzilla.suse.com/1189562
  o https://bugzilla.suse.com/1193731
  o https://bugzilla.suse.com/1194516
  o https://bugzilla.suse.com/1194943
  o https://bugzilla.suse.com/1195051
  o https://bugzilla.suse.com/1195254
  o https://bugzilla.suse.com/1195286
  o https://bugzilla.suse.com/1195353
  o https://bugzilla.suse.com/1195403
  o https://bugzilla.suse.com/1195516
  o https://bugzilla.suse.com/1195543
  o https://bugzilla.suse.com/1195612
  o https://bugzilla.suse.com/1195897
  o https://bugzilla.suse.com/1195905
  o https://bugzilla.suse.com/1195939
  o https://bugzilla.suse.com/1195987
  o https://bugzilla.suse.com/1196018
  o https://bugzilla.suse.com/1196079
  o https://bugzilla.suse.com/1196095
  o https://bugzilla.suse.com/1196155
  o https://bugzilla.suse.com/1196196
  o https://bugzilla.suse.com/1196235
  o https://bugzilla.suse.com/1196468
  o https://bugzilla.suse.com/1196488
  o https://bugzilla.suse.com/1196612
  o https://bugzilla.suse.com/1196761
  o https://bugzilla.suse.com/1196776
  o https://bugzilla.suse.com/1196823
  o https://bugzilla.suse.com/1196830
  o https://bugzilla.suse.com/1196836
  o https://bugzilla.suse.com/1196956
  o https://bugzilla.suse.com/1197227
  o https://bugzilla.suse.com/1197331
  o https://bugzilla.suse.com/1197366
  o https://bugzilla.suse.com/1197389
  o https://bugzilla.suse.com/1197462
  o https://bugzilla.suse.com/1197702
  o https://bugzilla.suse.com/1198031
  o https://bugzilla.suse.com/1198032
  o https://bugzilla.suse.com/1198033

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