wifi: wfx: validate MIB read length before copying to caller (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.21 % · percentile 11 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: wfx: validate MIB read length before copying to caller wfx_hif_read_mib() copies reply->length bytes from the firmware response into the caller-provided buffer without checking that reply->length does not exceed val_len. A firmware response with a length field larger than expected overruns the caller buffer and reads past the end of the reply allocation. Replace the dead -ENOMEM check with an active validation that reply->length fits within val_len before the memcpy.
References
- https://git.kernel.org/stable/c/b8310b55e53622a393d14af4939f620c1828778b
- https://git.kernel.org/stable/c/819d4c1323e2a9b7329021d5367aa01add22b5dc
- https://git.kernel.org/stable/c/02886c18a340da59df57365f29009e1258bfe333
- https://git.kernel.org/stable/c/71d140099165de03128c00dd129f1eab21c6a3c4
- https://git.kernel.org/stable/c/7acb36fd60a3e7b858f12e69a919c3609b281408
- https://git.kernel.org/stable/c/ce67ebe9d8629776ce38e6995ae72fb903c828db
European references
- ENISA EUVD · EUVD-2026-103770
- GCVE · GCVE-0-2026-98830
CERT-FR advisories
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected f95a29d40782f4f0052a692a822de3ba044b19ff < b8310b55e53622a393d14af4939f620c1828778b ; affected f95a29d40782f4f0052a692a822de3ba044b19ff < 819d4c1323e2a9b7329021d5367aa01add22b5dc ; affected f95a29d40782f4f0052a692a822de3ba044b19ff < 02886c18a340da59df57365f29009e1258bfe333 ; affected f95a29d40782f4f0052a692a822de3ba044b19ff < 71d140099165de03128c00dd129f1eab21c6a3c4 ; affected f95a29d40782f4f0052a692a822de3ba044b19ff < 7acb36fd60a3e7b858f12e69a919c3609b281408 ; affected f95a29d40782f4f0052a692a822de3ba044b19ff < ce67ebe9d8629776ce38e6995ae72fb903c828db |
| Linux · Linux | affected 5.5 ; unaffected 0 < 5.5 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.113 ≤ 6.12.* ; unaffected 6.18.56 ≤ 6.18.* |
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 |