usb: gadget: f_ncm: Use unsigned int for ndp_index (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 8 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_ncm: Use unsigned int for ndp_index The variable ndp_index is declared as a signed integer, but it stores the return value of get_ncm(), which is unsigned. A malicious host can supply a large offset that overflows the signed ndp_index, making it negative. Because ndp_index is compared against unsigned bounds, this negative value bypasses sanity checks and leads to an out-of-bounds read when calculating the address of the NDP block (ntb_ptr + ndp_index). Fix this by changing ndp_index to unsigned int to ensure consistent unsigned comparisons throughout the function.
References
- https://git.kernel.org/stable/c/9c8c6825a750fcd3efbe922847ca70ccd5a66857
- https://git.kernel.org/stable/c/a1c0deeba4a46481543d6b09c665f758c54c3a1a
- https://git.kernel.org/stable/c/d13f650a3485b58c124b3cda45597e8002c9c833
- https://git.kernel.org/stable/c/11413d7ed42174b8f5d8d0b6a25d10dc88239b21
- https://git.kernel.org/stable/c/5b2b3a3229a3f4c493ffdee53aee2f173b6f13b3
- https://git.kernel.org/stable/c/d328fdc607fa1bb668ad512e1c918a120f78f337
- https://git.kernel.org/stable/c/fc9e54e22845c4da29588ca0986cb7c795b5a262
- https://git.kernel.org/stable/c/6b1c8a9403a26cb0fed7a648916c74dc236da591
European references
- ENISA EUVD · EUVD-2026-64366
- GCVE · GCVE-0-2026-74679
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
- CERTFR-2026-AVI-1232 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1090 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 370af734dfaf8336b496b386e194648e097e248a < 9c8c6825a750fcd3efbe922847ca70ccd5a66857 ; affected 370af734dfaf8336b496b386e194648e097e248a < a1c0deeba4a46481543d6b09c665f758c54c3a1a ; affected 370af734dfaf8336b496b386e194648e097e248a < d13f650a3485b58c124b3cda45597e8002c9c833 ; affected 370af734dfaf8336b496b386e194648e097e248a < 11413d7ed42174b8f5d8d0b6a25d10dc88239b21 ; affected 370af734dfaf8336b496b386e194648e097e248a < 5b2b3a3229a3f4c493ffdee53aee2f173b6f13b3 ; affected 370af734dfaf8336b496b386e194648e097e248a < d328fdc607fa1bb668ad512e1c918a120f78f337 |
| Linux · Linux | affected 3.17 ; unaffected 0 < 3.17 ; unaffected 5.10.265 ≤ 5.10.* ; unaffected 5.15.216 ≤ 5.15.* ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.152 ≤ 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 |