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

ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut

Number of MW LUTs depends on NTB configuration and can be set to zero,
in such scenario rounddown_pow_of_two will cause undefined behaviour and
should not be performed.
This patch ensures that rounddown_pow_of_two is called on valid value.
Published: 2026-05-06
Score: 7.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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History

Wed, 13 May 2026 23:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-190
CWE-682

Wed, 13 May 2026 21:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H'}


Thu, 07 May 2026 00:15:00 +0000


Wed, 06 May 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-190
CWE-682

Wed, 06 May 2026 12:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut Number of MW LUTs depends on NTB configuration and can be set to zero, in such scenario rounddown_pow_of_two will cause undefined behaviour and should not be performed. This patch ensures that rounddown_pow_of_two is called on valid value.
Title ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-11T22:18:33.118Z

Reserved: 2026-05-01T14:12:55.989Z

Link: CVE-2026-43141

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-05-06T12:16:31.493

Modified: 2026-05-13T20:52:24.240

Link: CVE-2026-43141

cve-icon Redhat

Severity :

Publid Date: 2026-05-06T00:00:00Z

Links: CVE-2026-43141 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-14T00:30:07Z

Weaknesses