RDMA/mana: Validate rx_hash_key_len

Summary

CVE	CVE-2026-46145
State	PUBLISHED
Assigner	Linux
Source Priority	CVE Program / NVD first with legacy fallback
Published	2026-05-28 10:16:30 UTC
Updated	2026-07-15 02:22:11 UTC
Description	In 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 HIGH from ADP

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

EPSS: 0.000130000 probability, percentile 0.024370000 (date 2026-06-03)

Problem Types: NVD-CWE-noinfo | CWE-787 | CWE-787 Out-of-bounds Write

Version	Source	Type	Score	Severity	Vector
3.1	ADP	CVSS	7	HIGH	`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`
3.1	416baaa9-dc9f-4396-8d5f-8c081fb06d67	Secondary	7.8	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
3.1	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	Secondary	7	HIGH	`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`
3.1	CNA	DECLARED	7.8	HIGH	`CVSS: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

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Linux	Linux Kernel	All	All	All	All

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
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 * original_commit_for_fix	Not specified
ADP	Red Hat	Red Hat Enterprise Linux 10	unaffected 0:6.12.0-211.28.1.el10_2 * rpm	Not specified
ADP	Red Hat	Red Hat Enterprise Linux 8	unaffected 0:4.18.0-553.136.1.rt7.477.el8_10 * rpm	Not specified
ADP	Red Hat	Red Hat Enterprise Linux 8	unaffected 0:4.18.0-553.136.1.el8_10 * rpm	Not specified
ADP	Red Hat	Red Hat Enterprise Linux 9	unaffected 0:5.14.0-687.17.1.el9_8 * rpm	Not specified
ADP	Red Hat	Red Hat Enterprise Linux 6	Not specified	Not specified
ADP	Red Hat	Red Hat Enterprise Linux 7	Not specified	Not specified
ADP	Red Hat	Red Hat Enterprise Linux 7	Not specified	Not specified
ADP	Red Hat	Red Hat Enterprise Linux 9	Not specified	Not specified

References

Reference	Source	Link	Tags
access.redhat.com/errata/RHSA-2026:27789	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	access.redhat.com
access.redhat.com/security/cve/CVE-2026-46145	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	access.redhat.com
git.kernel.org/stable/c/7d94f155f354b961c598f71bafa804dceded513f	416baaa9-dc9f-4396-8d5f-8c081fb06d67	git.kernel.org	Patch
bugzilla.redhat.com/show_bug.cgi	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	bugzilla.redhat.com
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46145.json	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	security.access.redhat.com
git.kernel.org/stable/c/012796f9541fcd0c1fa8ae4da7eb4d83931ef838	416baaa9-dc9f-4396-8d5f-8c081fb06d67	git.kernel.org	Patch
access.redhat.com/errata/RHSA-2026:30129	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	access.redhat.com
access.redhat.com/errata/RHSA-2026:27354	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	access.redhat.com
git.kernel.org/stable/c/7d7c9f0fcd19c4d2f0164347c58d49cafa961b72	416baaa9-dc9f-4396-8d5f-8c081fb06d67	git.kernel.org	Patch
access.redhat.com/errata/RHSA-2026:27353	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	access.redhat.com
git.kernel.org/stable/c/6dd2d4ad9c8429523b1c220c5132bd551c006425	416baaa9-dc9f-4396-8d5f-8c081fb06d67	git.kernel.org	Patch
git.kernel.org/stable/c/11c1431d641e0e4e0529e96957995820600c7287	416baaa9-dc9f-4396-8d5f-8c081fb06d67	git.kernel.org	Patch
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

Additional Advisory Data

Source	Time	Event
ADP	2026-05-28T00:00:00.000Z	Reported to Red Hat.
ADP	2026-05-28T00:00:00.000Z	Made public.

Solutions

ADP: RHSA-2026:30129: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10), Red Hat Enterprise Linux Real Time (v. 10), Red Hat Enterprise Linux Real Time for NFV (v. 10)

ADP: RHSA-2026:27789: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9), Red Hat Enterprise Linux Real Time (v. 9), Red Hat Enterprise Linux Real Time for NFV (v. 9)

ADP: RHSA-2026:27353: Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux CRB (v. 8)

ADP: RHSA-2026:27354: Red Hat Enterprise Linux NFV (v. 8), Red Hat Enterprise Linux RT (v. 8)

There are currently no legacy QID mappings associated with this CVE.