

# Security update for the Linux Kernel

Announcement ID: SUSE-SU-2024:0463-1  
Rating: important  
References:

  * bsc#1108281
  * bsc#1193285
  * bsc#1216702
  * bsc#1217987
  * bsc#1217988
  * bsc#1217989
  * bsc#1218713
  * bsc#1218730
  * bsc#1218752
  * bsc#1218757
  * bsc#1218768
  * bsc#1218804
  * bsc#1218832
  * bsc#1218836
  * bsc#1219053
  * bsc#1219120
  * bsc#1219412
  * bsc#1219434

  
Cross-References:

  * CVE-2021-33631
  * CVE-2023-46838
  * CVE-2023-47233
  * CVE-2023-51043
  * CVE-2023-51780
  * CVE-2023-51782
  * CVE-2023-6040
  * CVE-2023-6356
  * CVE-2023-6535
  * CVE-2023-6536
  * CVE-2023-6915
  * CVE-2024-0565
  * CVE-2024-0775
  * CVE-2024-1086

  
CVSS scores:

  * CVE-2021-33631 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2021-33631 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-46838 ( SUSE ):  4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-46838 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-47233 ( SUSE ):  4.3 CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-47233 ( NVD ):  4.3 CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-51043 ( SUSE ):  6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-51043 ( NVD ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-51780 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-51780 ( NVD ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-51782 ( SUSE ):  6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-51782 ( NVD ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-6040 ( SUSE ):  4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
  * CVE-2023-6040 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-6356 ( SUSE ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-6535 ( SUSE ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-6536 ( SUSE ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-6915 ( SUSE ):  6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-6915 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2024-0565 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2024-0565 ( NVD ):  7.4 CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
  * CVE-2024-0775 ( SUSE ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
  * CVE-2024-0775 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2024-1086 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-1086 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise Micro 5.1
  * SUSE Linux Enterprise Micro 5.2
  * SUSE Linux Enterprise Micro for Rancher 5.2

  
  
An update that solves 14 vulnerabilities and has four security fixes can now be
installed.

## Description:

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various
security bugfixes.

The following security bugs were fixed:

  * CVE-2024-1086: Fixed a use-after-free vulnerability inside the nf_tables
    component that could have been exploited to achieve local privilege
    escalation (bsc#1219434).
  * CVE-2023-51780: Fixed a use-after-free in do_vcc_ioctl in net/atm/ioctl.c,
    because of a vcc_recvmsg race condition (bsc#1218730).
  * CVE-2023-46838: Fixed an issue with Xen netback processing of zero-length
    transmit fragment (bsc#1218836).
  * CVE-2021-33631: Fixed an integer overflow in ext4_write_inline_data_end()
    (bsc#1219412).
  * CVE-2023-6535: Fixed a NULL pointer dereference in nvmet_tcp_execute_request
    (bsc#1217988).
  * CVE-2023-6536: Fixed a NULL pointer dereference in __nvmet_req_complete
    (bsc#1217989).
  * CVE-2023-6356: Fixed a NULL pointer dereference in nvmet_tcp_build_pdu_iovec
    (bsc#1217987).
  * CVE-2023-47233: Fixed a use-after-free in the device unplugging (disconnect
    the USB by hotplug) code inside the brcm80211 component (bsc#1216702).
  * CVE-2023-51043: Fixed use-after-free during a race condition between a
    nonblocking atomic commit and a driver unload in
    drivers/gpu/drm/drm_atomic.c (bsc#1219120).
  * CVE-2024-0775: Fixed use-after-free in __ext4_remount in fs/ext4/super.c
    that could allow a local user to cause an information leak problem while
    freeing the old quota file names before a potential failure (bsc#1219053).
  * CVE-2024-0565: Fixed an out-of-bounds memory read flaw in
    receive_encrypted_standard in fs/smb/client/smb2ops.c (bsc#1218832).
  * CVE-2023-6915: Fixed a NULL pointer dereference problem in ida_free in
    lib/idr.c (bsc#1218804).
  * CVE-2023-6040: Fixed an out-of-bounds access vulnerability while creating a
    new netfilter table, lack of a safeguard against invalid nf_tables family
    (pf) values within `nf_tables_newtable` function (bsc#1218752).
  * CVE-2023-51782: Fixed use-after-free in rose_ioctl in net/rose/af_rose.c
    because of a rose_accept race condition (bsc#1218757).

The following non-security bugs were fixed:

  * Store the old kernel changelog entries in kernel-docs package (bsc#1218713).
  * x86/entry/ia32: Ensure s32 is sign extended to s64 (bsc#1193285).

## 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:

  * SUSE Linux Enterprise Micro 5.1  
    zypper in -t patch SUSE-SUSE-MicroOS-5.1-2024-463=1

  * SUSE Linux Enterprise Micro 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2024-463=1

  * SUSE Linux Enterprise Micro for Rancher 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2024-463=1

## Package List:

  * SUSE Linux Enterprise Micro 5.1 (nosrc x86_64)
    * kernel-rt-5.3.18-150300.158.1
  * SUSE Linux Enterprise Micro 5.1 (x86_64)
    * kernel-rt-debuginfo-5.3.18-150300.158.1
    * kernel-rt-debugsource-5.3.18-150300.158.1
  * SUSE Linux Enterprise Micro 5.2 (nosrc x86_64)
    * kernel-rt-5.3.18-150300.158.1
  * SUSE Linux Enterprise Micro 5.2 (x86_64)
    * kernel-rt-debuginfo-5.3.18-150300.158.1
    * kernel-rt-debugsource-5.3.18-150300.158.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (nosrc x86_64)
    * kernel-rt-5.3.18-150300.158.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (x86_64)
    * kernel-rt-debuginfo-5.3.18-150300.158.1
    * kernel-rt-debugsource-5.3.18-150300.158.1

## References:

  * https://www.suse.com/security/cve/CVE-2021-33631.html
  * https://www.suse.com/security/cve/CVE-2023-46838.html
  * https://www.suse.com/security/cve/CVE-2023-47233.html
  * https://www.suse.com/security/cve/CVE-2023-51043.html
  * https://www.suse.com/security/cve/CVE-2023-51780.html
  * https://www.suse.com/security/cve/CVE-2023-51782.html
  * https://www.suse.com/security/cve/CVE-2023-6040.html
  * https://www.suse.com/security/cve/CVE-2023-6356.html
  * https://www.suse.com/security/cve/CVE-2023-6535.html
  * https://www.suse.com/security/cve/CVE-2023-6536.html
  * https://www.suse.com/security/cve/CVE-2023-6915.html
  * https://www.suse.com/security/cve/CVE-2024-0565.html
  * https://www.suse.com/security/cve/CVE-2024-0775.html
  * https://www.suse.com/security/cve/CVE-2024-1086.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1108281
  * https://bugzilla.suse.com/show_bug.cgi?id=1193285
  * https://bugzilla.suse.com/show_bug.cgi?id=1216702
  * https://bugzilla.suse.com/show_bug.cgi?id=1217987
  * https://bugzilla.suse.com/show_bug.cgi?id=1217988
  * https://bugzilla.suse.com/show_bug.cgi?id=1217989
  * https://bugzilla.suse.com/show_bug.cgi?id=1218713
  * https://bugzilla.suse.com/show_bug.cgi?id=1218730
  * https://bugzilla.suse.com/show_bug.cgi?id=1218752
  * https://bugzilla.suse.com/show_bug.cgi?id=1218757
  * https://bugzilla.suse.com/show_bug.cgi?id=1218768
  * https://bugzilla.suse.com/show_bug.cgi?id=1218804
  * https://bugzilla.suse.com/show_bug.cgi?id=1218832
  * https://bugzilla.suse.com/show_bug.cgi?id=1218836
  * https://bugzilla.suse.com/show_bug.cgi?id=1219053
  * https://bugzilla.suse.com/show_bug.cgi?id=1219120
  * https://bugzilla.suse.com/show_bug.cgi?id=1219412
  * https://bugzilla.suse.com/show_bug.cgi?id=1219434

SUSE: 2024:0463-1 important: the Linux Kernel

February 14, 2024

* bsc#1108281 * bsc#1193285 * bsc#1216702 * bsc#1217987 * bsc#1217988

Summary

## The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: * CVE-2024-1086: Fixed a use-after-free vulnerability inside the nf_tables component that could have been exploited to achieve local privilege escalation (bsc#1219434). * CVE-2023-51780: Fixed a use-after-free in do_vcc_ioctl in net/atm/ioctl.c, because of a vcc_recvmsg race condition (bsc#1218730). * CVE-2023-46838: Fixed an issue with Xen netback processing of zero-length transmit fragment (bsc#1218836). * CVE-2021-33631: Fixed an integer overflow in ext4_write_inline_data_end() (bsc#1219412). * CVE-2023-6535: Fixed a NULL pointer dereference in nvmet_tcp_execute_request (bsc#1217988). * CVE-2023-6536: Fixed a NULL pointer dereference in __nvmet_req_complete (bsc#1217989). * CVE-2023-6356: Fixed a NULL pointer dereference in nvmet_tcp_build_pdu_iovec (bsc#1217987). * CVE-2023-47233: Fixed a use-after-free in the device unplugging (disconnect the USB by hotplug) code inside the brcm80211 component (bsc#1216702). * CVE-2023-51043: Fixed use-after-free during a race condition between a nonblocking atomic commit and a driver unload in drivers/gpu/drm/drm_atomic.c (bsc#1219120). * CVE-2024-0775: Fixed use-after-free in __ext4_remount in fs/ext4/super.c that could allow a local user to cause an information leak problem while freeing the old quota file names before a potential failure (bsc#1219053). * CVE-2024-0565: Fixed an out-of-bounds memory read flaw in receive_encrypted_standard in fs/smb/client/smb2ops.c (bsc#1218832). * CVE-2023-6915: Fixed a NULL pointer dereference problem in ida_free in lib/idr.c (bsc#1218804). * CVE-2023-6040: Fixed an out-of-bounds access vulnerability while creating a new netfilter table, lack of a safeguard against invalid nf_tables family (pf) values within `nf_tables_newtable` function (bsc#1218752). * CVE-2023-51782: Fixed use-after-free in rose_ioctl in net/rose/af_rose.c because of a rose_accept race condition (bsc#1218757). The following non-security bugs were fixed: * Store the old kernel changelog entries in kernel-docs package (bsc#1218713). * x86/entry/ia32: Ensure s32 is sign extended to s64 (bsc#1193285).

References

* bsc#1108281

* bsc#1193285

* bsc#1216702

* bsc#1217987

* bsc#1217988

* bsc#1217989

* bsc#1218713

* bsc#1218730

* bsc#1218752

* bsc#1218757

* bsc#1218768

* bsc#1218804

* bsc#1218832

* bsc#1218836

* bsc#1219053

* bsc#1219120

* bsc#1219412

* bsc#1219434

Cross-

* CVE-2021-33631

* CVE-2023-46838

* CVE-2023-47233

* CVE-2023-51043

* CVE-2023-51780

* CVE-2023-51782

* CVE-2023-6040

* CVE-2023-6356

* CVE-2023-6535

* CVE-2023-6536

* CVE-2023-6915

* CVE-2024-0565

* CVE-2024-0775

* CVE-2024-1086

CVSS scores:

* CVE-2021-33631 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* CVE-2021-33631 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-46838 ( SUSE ): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

* CVE-2023-46838 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2023-47233 ( SUSE ): 4.3 CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* CVE-2023-47233 ( NVD ): 4.3 CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* CVE-2023-51043 ( SUSE ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-51043 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-51780 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-51780 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-51782 ( SUSE ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-51782 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-6040 ( SUSE ): 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

* CVE-2023-6040 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-6356 ( SUSE ): 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2023-6535 ( SUSE ): 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2023-6536 ( SUSE ): 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2023-6915 ( SUSE ): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2023-6915 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* CVE-2024-0565 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2024-0565 ( NVD ): 7.4 CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

* CVE-2024-0775 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

* CVE-2024-0775 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

* CVE-2024-1086 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2024-1086 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

* SUSE Linux Enterprise Micro 5.1

* SUSE Linux Enterprise Micro 5.2

* SUSE Linux Enterprise Micro for Rancher 5.2

An update that solves 14 vulnerabilities and has four security fixes can now be

installed.

* https://www.suse.com/security/cve/CVE-2021-33631.html

* https://www.suse.com/security/cve/CVE-2023-46838.html

* https://www.suse.com/security/cve/CVE-2023-47233.html

* https://www.suse.com/security/cve/CVE-2023-51043.html

* https://www.suse.com/security/cve/CVE-2023-51780.html

* https://www.suse.com/security/cve/CVE-2023-51782.html

* https://www.suse.com/security/cve/CVE-2023-6040.html

* https://www.suse.com/security/cve/CVE-2023-6356.html

* https://www.suse.com/security/cve/CVE-2023-6535.html

* https://www.suse.com/security/cve/CVE-2023-6536.html

* https://www.suse.com/security/cve/CVE-2023-6915.html

* https://www.suse.com/security/cve/CVE-2024-0565.html

* https://www.suse.com/security/cve/CVE-2024-0775.html

* https://www.suse.com/security/cve/CVE-2024-1086.html

* https://bugzilla.suse.com/show_bug.cgi?id=1108281

* https://bugzilla.suse.com/show_bug.cgi?id=1193285

* https://bugzilla.suse.com/show_bug.cgi?id=1216702

* https://bugzilla.suse.com/show_bug.cgi?id=1217987

* https://bugzilla.suse.com/show_bug.cgi?id=1217988

* https://bugzilla.suse.com/show_bug.cgi?id=1217989

* https://bugzilla.suse.com/show_bug.cgi?id=1218713

* https://bugzilla.suse.com/show_bug.cgi?id=1218730

* https://bugzilla.suse.com/show_bug.cgi?id=1218752

* https://bugzilla.suse.com/show_bug.cgi?id=1218757

* https://bugzilla.suse.com/show_bug.cgi?id=1218768

* https://bugzilla.suse.com/show_bug.cgi?id=1218804

* https://bugzilla.suse.com/show_bug.cgi?id=1218832

* https://bugzilla.suse.com/show_bug.cgi?id=1218836

* https://bugzilla.suse.com/show_bug.cgi?id=1219053

* https://bugzilla.suse.com/show_bug.cgi?id=1219120

* https://bugzilla.suse.com/show_bug.cgi?id=1219412

* https://bugzilla.suse.com/show_bug.cgi?id=1219434

Severity

Announcement ID: SUSE-SU-2024:0463-1

Rating: important

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