CVE-2026-68401
firmware: arm_ffa: Fix out-of-bound writes in ffa_setup_and_transmit()
HIGH 7.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.14 % · percentile 3 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Fix out-of-bound writes in ffa_setup_and_transmit() Sashiko (locally) reports multiple out-of-bound issues in ffa_setup_and_transmit: 1) Writing ep_mem_access->reserved can write out of bounds for FFA versions < 1.2 as ffa_emad_size_get() returns 16 bytes in that case while reserved has an offset of 24. Instead of zeroing fields, memset the struct to zero first based on the FFA version. 2) Make sure there is enough size to write constituents. While at it, convert the only sizeof() in the driver that uses a type instead of variable.
References
- https://git.kernel.org/stable/c/d312a71b19bb83803c8d1372bc042bd36db657f7
- https://git.kernel.org/stable/c/00bef9d0f9e787f56ff4699d3b577983ff8b7f24
- https://git.kernel.org/stable/c/cf5708c9d78c98214c62b1e5d049cd527a543b8e
- https://git.kernel.org/stable/c/27abdaf0c5c89b06694e4c3d8318e8d6a60c1d1b
- https://git.kernel.org/stable/c/3383ffb7ef937317361713ffcc21921a7848511a
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 7.8 | 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) |
European references
- ENISA EUVD · EUVD-2026-55587
- GCVE · GCVE-0-2026-68401
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1333 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 111a833dc5cbef3d05b2a796a7e23cb7f6ff2192 < d312a71b19bb83803c8d1372bc042bd36db657f7 ; affected 111a833dc5cbef3d05b2a796a7e23cb7f6ff2192 < 00bef9d0f9e787f56ff4699d3b577983ff8b7f24 ; affected 111a833dc5cbef3d05b2a796a7e23cb7f6ff2192 < cf5708c9d78c98214c62b1e5d049cd527a543b8e ; affected 111a833dc5cbef3d05b2a796a7e23cb7f6ff2192 < 27abdaf0c5c89b06694e4c3d8318e8d6a60c1d1b ; affected 111a833dc5cbef3d05b2a796a7e23cb7f6ff2192 < 3383ffb7ef937317361713ffcc21921a7848511a ; affected 28ebfb74fbf513e0c7cd2674d8c2400ee0220d18 |
| Linux · Linux | affected 6.4 ; unaffected 0 < 6.4 ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.114 ≤ 6.12.* ; unaffected 6.18.42 ≤ 6.18.* ; unaffected 7.1.6 ≤ 7.1.* |
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 |