RDMA/mana: Validate rx_hash_key_len

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Summary

CVECVE-2026-46145
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 10:16:30 UTC
Updated2026-05-30 11:17:23 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: RDMA/mana: Validate rx_hash_key_len Sashiko points out that rx_hash_key_len comes from a uAPI structure and is blindly passed to memcpy, allowing the userspace to trash kernel memory. Bounds check it so the memcpy cannot overflow.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.000180000 probability, percentile 0.051640000 (date 2026-05-29)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0266a177631d4c6b963b5b12dd986a8c5abdbf06 7d7c9f0fcd19c4d2f0164347c58d49cafa961b72 git Not specified
CNA Linux Linux affected 0266a177631d4c6b963b5b12dd986a8c5abdbf06 11c1431d641e0e4e0529e96957995820600c7287 git Not specified
CNA Linux Linux affected 0266a177631d4c6b963b5b12dd986a8c5abdbf06 012796f9541fcd0c1fa8ae4da7eb4d83931ef838 git Not specified
CNA Linux Linux affected 0266a177631d4c6b963b5b12dd986a8c5abdbf06 7d94f155f354b961c598f71bafa804dceded513f git Not specified
CNA Linux Linux affected 0266a177631d4c6b963b5b12dd986a8c5abdbf06 6dd2d4ad9c8429523b1c220c5132bd551c006425 git Not specified
CNA Linux Linux affected 6.2 Not specified
CNA Linux Linux unaffected 6.2 semver Not specified
CNA Linux Linux unaffected 6.6.141 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.88 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.30 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.7 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/7d94f155f354b961c598f71bafa804dceded513f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/012796f9541fcd0c1fa8ae4da7eb4d83931ef838 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7d7c9f0fcd19c4d2f0164347c58d49cafa961b72 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6dd2d4ad9c8429523b1c220c5132bd551c006425 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/11c1431d641e0e4e0529e96957995820600c7287 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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