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SUSE Linux 15 SP4 Kernel Important Patch CVE-2025-39742 Divide-By-Zero

suse
Calendar Grey February 16, 2026
Dist Suse Esm H88
Security update for SUSE Linux Kernel addresses a critical divide-by-zero error improving system stability and security.
An update that solves one vulnerability can now be installed.

Summary

## This update for the SUSE Linux Enterprise kernel 5.14.21-150400.24.179 fixes one security issue The following security issue was fixed: * CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() (bsc#1249480). ## 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: * openSUSE Leap 15.4 zypper in -t patch SUSE-2026-533=1 * SUSE Linux Enterprise Live Patching 15-SP4 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-533=1 ## Package List: * openSUSE Leap 15.4 (ppc64le s390x x86_64) * kernel-livepatch-5_14_21-150400_24_179-default-5-150400.2.1 * kernel-livepatch-SLE15-SP4_Update_45-debugsource-5-150400.2.1

Topics%20covered

Topics Covered

security advisory SuSE important Linux kernel rdma divide-by-zero

References

* bsc#1249480

Cross-

* CVE-2025-39742

CVSS scores:

* CVE-2025-39742 ( SUSE ): 7.3

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

* CVE-2025-39742 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-39742 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products:

* openSUSE Leap 15.4

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise Live Patching 15-SP4

* SUSE Linux Enterprise Micro 5.3

* SUSE Linux Enterprise Micro 5.4

* SUSE Linux Enterprise Real Time 15 SP4

* SUSE Linux Enterprise Server 15 SP4

* SUSE Linux Enterprise Server for SAP Applications 15 SP4

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2025-39742.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0533-1
Release Date: 2026-02-15T06:33:38Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important Linux kernel rdma divide-by-zero

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