Divide By Zero Affecting kernel-livepatch-6_12_0-160000_5-default package, versions <7-160000.4.3


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.17% (7th percentile)

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  • Snyk IDSNYK-SLES1600-KERNELLIVEPATCH61201600005DEFAULT-15439827
  • published7 Mar 2026
  • disclosed4 Mar 2026

Introduced: 4 Mar 2026

CVE-2025-39742  (opens in a new tab)
CWE-369  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 kernel-livepatch-6_12_0-160000_5-default to version 7-160000.4.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-6_12_0-160000_5-default package and not the kernel-livepatch-6_12_0-160000_5-default package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask()

The function divides number of online CPUs by num_core_siblings, and later checks the divider by zero. This implies a possibility to get and divide-by-zero runtime error. Fix it by moving the check prior to division. This also helps to save one indentation level.

CVSS Base Scores

version 3.1