ntb: ntb_hw_switchtec: Fix array-index-out-of-bounds access

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Summary

CVECVE-2026-43241
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 12:16:44 UTC
Updated2026-05-11 14:26:10 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ntb: ntb_hw_switchtec: Fix array-index-out-of-bounds access Number of MW LUTs depends on NTB configuration and can be set to MAX_MWS, This patch protects against invalid index out of bounds access to mw_sizes When invalid access print message to user that configuration is not valid.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Problem Types: CWE-125

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected ec0467ccbdeb69a86c8729073057bda7bce00eec 348e1ac9ad983ed7e62de14e1daf47f1695a4ce9 git Not specified
CNA Linux Linux affected ec0467ccbdeb69a86c8729073057bda7bce00eec ee02c4f980c91820845dd8e469ec7dc670ab6d9d git Not specified
CNA Linux Linux affected ec0467ccbdeb69a86c8729073057bda7bce00eec 740945de896021b9a859e71f38f6aea72a6393cf git Not specified
CNA Linux Linux affected ec0467ccbdeb69a86c8729073057bda7bce00eec 85c9daa1f8319bbb3dfee71dc6a2f969cd3b4c92 git Not specified
CNA Linux Linux affected ec0467ccbdeb69a86c8729073057bda7bce00eec 0e930420945106151c6eb3d7837b4e6154e9b144 git Not specified
CNA Linux Linux affected ec0467ccbdeb69a86c8729073057bda7bce00eec 2346856b74823a2a78109002e479a3d02526a9ce git Not specified
CNA Linux Linux affected ec0467ccbdeb69a86c8729073057bda7bce00eec 47ce292dd45dc689747c40603222691638919189 git Not specified
CNA Linux Linux affected ec0467ccbdeb69a86c8729073057bda7bce00eec c8ba7ad2cc1c7b90570aa347b8ebbe279f1eface git Not specified
CNA Linux Linux affected 4.15 Not specified
CNA Linux Linux unaffected 4.15 semver Not specified
CNA Linux Linux unaffected 5.10.252 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.202 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.165 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.128 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.75 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.16 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.6 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/ee02c4f980c91820845dd8e469ec7dc670ab6d9d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/740945de896021b9a859e71f38f6aea72a6393cf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/0e930420945106151c6eb3d7837b4e6154e9b144 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/348e1ac9ad983ed7e62de14e1daf47f1695a4ce9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/85c9daa1f8319bbb3dfee71dc6a2f969cd3b4c92 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c8ba7ad2cc1c7b90570aa347b8ebbe279f1eface 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/2346856b74823a2a78109002e479a3d02526a9ce 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/47ce292dd45dc689747c40603222691638919189 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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