SB2026021617 - SUSE update for the Linux Kernel (Live Patch 68 for SUSE Linux Enterprise 12 SP5)

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Main Vulnerability Database SB2026021617

SB2026021617 - SUSE update for the Linux Kernel (Live Patch 68 for SUSE Linux Enterprise 12 SP5)

Published: February 16, 2026

Security Bulletin ID SB2026021617
Severity
High
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

High 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2023-53321)

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

The vulnerability exists due to improper input validation within the hwsim_cloned_frame_received_nl() function in drivers/net/wireless/mac80211_hwsim.c. A local user can perform a denial of service (DoS) attack.


2) Race condition (CVE-ID: CVE-2025-38352)

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

The vulnerability exists due to a race condition within the run_posix_cpu_timers() function in kernel/time/posix-cpu-timers.c. A local user can escalate privileges on the system.

Note, the vulnerability is being actively exploited in the wild against Android devices.


3) Use-after-free (CVE-ID: CVE-2025-40186)

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

The vulnerability exists due to a use-after-free error within the tcp_conn_request() function in net/ipv4/tcp_input.c. A local user can escalate privileges on the system.


Remediation

Install update from vendor's website.

References