HID: hyperv: validate initial device info bounds (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.19 % · percentile 9 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: HID: hyperv: validate initial device info bounds The Hyper-V synthetic HID host supplies SYNTH_HID_INITIAL_DEVICE_INFO messages that contain a HID descriptor followed by the report descriptor bytes. mousevsc_on_receive_device_info() trusts bLength and wDescriptorLength without checking that the received packet contains both byte ranges. A malformed host or backend message can therefore make the guest read past the received VMBus packet while copying the report descriptor. Pass the received initial-device-info size into the parser and reject descriptor lengths that exceed the packet. Impact: A malicious Hyper-V host or backend can crash a guest by sending a short initial device-info message with an oversized HID report descriptor length.
References
- https://git.kernel.org/stable/c/e0d5d3e45e142b7ef7525654aaa54d3e986002a6
- https://git.kernel.org/stable/c/390d3d9c52a710fdc9de95a537747397c0c671d1
- https://git.kernel.org/stable/c/8614c043b11cc35ffebd35542ab4da275f8f923d
- https://git.kernel.org/stable/c/334271d3812ab3197c95b4593bc6745f8d189114
- https://git.kernel.org/stable/c/f84d777574b748b1a488723ca7be9d87a301a872
- https://git.kernel.org/stable/c/608f8fd8c0f7b6268da43509447802955f210aac
- https://git.kernel.org/stable/c/2529737763cb4bcfcaf397beeea2664656c865b4
- https://git.kernel.org/stable/c/c894143c508a7e063aab9f73c9e835ab40121283
- https://git.kernel.org/stable/c/934b7778aa7b7c8f6bb073d2a73ba3674885bae0
European references
- ENISA EUVD · EUVD-2026-71408
- GCVE · GCVE-0-2026-80765
CERT-FR advisories
- CERTFR-2026-AVI-1232 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1231 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected b95f5bcb811e3905b5376f87789da8d097fee682 < e0d5d3e45e142b7ef7525654aaa54d3e986002a6 ; affected b95f5bcb811e3905b5376f87789da8d097fee682 < 390d3d9c52a710fdc9de95a537747397c0c671d1 ; affected b95f5bcb811e3905b5376f87789da8d097fee682 < 8614c043b11cc35ffebd35542ab4da275f8f923d ; affected b95f5bcb811e3905b5376f87789da8d097fee682 < 334271d3812ab3197c95b4593bc6745f8d189114 ; affected b95f5bcb811e3905b5376f87789da8d097fee682 < f84d777574b748b1a488723ca7be9d87a301a872 ; affected b95f5bcb811e3905b5376f87789da8d097fee682 < 608f8fd8c0f7b6268da43509447802955f210aac |
| Linux · Linux | affected 3.3 ; unaffected 0 < 3.3 ; unaffected 5.10.267 ≤ 5.10.* ; unaffected 5.15.218 ≤ 5.15.* ; unaffected 6.1.185 ≤ 6.1.* ; unaffected 6.6.154 ≤ 6.6.* |
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 |