SB2026032799 - SUSE update for the Linux Kernel

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Main Vulnerability Database SB2026032799

SB2026032799 - SUSE update for the Linux Kernel

Published: March 27, 2026

Security Bulletin ID SB2026032799
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2021-47110)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to memory corruption within the kvm_crash_shutdown() and kvmclock_init() functions in arch/x86/kernel/kvmclock.c, within the kvm_guest_cpu_offline() function in arch/x86/kernel/kvm.c. A local user can escalate privileges on the system.


2) Buffer overflow (CVE-ID: CVE-2025-21738)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the ata_pio_sector() function in drivers/ata/libata-sff.c. A local user can perform a denial of service (DoS) attack.


3) Use-after-free (CVE-ID: CVE-2026-23074)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the teql_qdisc_init() function in net/sched/sch_teql.c. A local user can escalate privileges on the system.


4) Use-after-free (CVE-ID: CVE-2026-23089)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the parse_audio_unit() function in sound/usb/mixer.c. A local user can escalate privileges on the system.


5) Use-after-free (CVE-ID: CVE-2026-23191)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the is_access_interleaved() and loopback_check_format() functions in sound/drivers/aloop.c. A local user can escalate privileges on the system.


Remediation

Install update from vendor's website.

References