CVE-2026-46145
RDMA/mana: Validate rx_hash_key_len
At a glance
- Severity
- HIGH 7.8
- EPSS
- EPSS 0.15 % · percentile 4 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
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.
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | redhat-SADP |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | HIGH 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Weaknesses (CWE)
European references
- ENISA EUVD · EUVD-2026-32772
- GCVE · GCVE-0-2026-46145
CERT-FR advisories
- CERTFR-2026-AVI-1252 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1229 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1162 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1161 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1118 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1094 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1091 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1066 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1064 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1029 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0926 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0808 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0731 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.141cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.88cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.18.30cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 7.0.7cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 0266a177631d4c6b963b5b12dd986a8c5abdbf06 < 7d7c9f0fcd19c4d2f0164347c58d49cafa961b72 ; affected 0266a177631d4c6b963b5b12dd986a8c5abdbf06 < 11c1431d641e0e4e0529e96957995820600c7287 ; affected 0266a177631d4c6b963b5b12dd986a8c5abdbf06 < 012796f9541fcd0c1fa8ae4da7eb4d83931ef838 ; affected 0266a177631d4c6b963b5b12dd986a8c5abdbf06 < 7d94f155f354b961c598f71bafa804dceded513f ; affected 0266a177631d4c6b963b5b12dd986a8c5abdbf06 < 6dd2d4ad9c8429523b1c220c5132bd551c006425 |
| Linux · Linux | affected 6.2 ; unaffected 0 < 6.2 ; unaffected 6.6.141 ≤ 6.6.* ; unaffected 6.12.88 ≤ 6.12.* ; unaffected 6.18.30 ≤ 6.18.* ; unaffected 7.0.7 ≤ 7.0.* |
References
- https://git.kernel.org/stable/c/7d7c9f0fcd19c4d2f0164347c58d49cafa961b72
- https://git.kernel.org/stable/c/11c1431d641e0e4e0529e96957995820600c7287
- https://git.kernel.org/stable/c/012796f9541fcd0c1fa8ae4da7eb4d83931ef838
- https://git.kernel.org/stable/c/7d94f155f354b961c598f71bafa804dceded513f
- https://git.kernel.org/stable/c/6dd2d4ad9c8429523b1c220c5132bd551c006425
- https://access.redhat.com/security/cve/CVE-2026-46145
- https://bugzilla.redhat.com/show_bug.cgi?id=2482581
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46145.json
- https://access.redhat.com/errata/RHSA-2026:64767
- https://access.redhat.com/errata/RHSA-2026:30129
- https://access.redhat.com/errata/RHSA-2026:65712
- https://access.redhat.com/errata/RHSA-2026:62568
- https://access.redhat.com/errata/RHSA-2026:27789
- https://access.redhat.com/errata/RHSA-2026:27353
- https://access.redhat.com/errata/RHSA-2026:27354
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |