SB20260213130 - SUSE update for the Linux Kernel RT (Live Patch 3 for SUSE Linux Enterprise 15 SP7) 

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Main Vulnerability Database SB20260213130

SB20260213130 - SUSE update for the Linux Kernel RT (Live Patch 3 for SUSE Linux Enterprise 15 SP7)

Published: February 13, 2026

Security Bulletin ID SB20260213130
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Division by zero (CVE-ID: CVE-2025-39742)

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

The vulnerability exists due to a division by zero error within the find_hw_thread_mask() function in drivers/infiniband/hw/hfi1/affinity.c. A local user can perform a denial of service (DoS) attack.


2) NULL pointer dereference (CVE-ID: CVE-2025-40129)

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

The vulnerability exists due to NULL pointer dereference within the svcauth_gss_verify_header() function in net/sunrpc/auth_gss/svcauth_gss.c. A local user can perform a denial of service (DoS) attack.


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