usb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind() (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.17 % · centile 6 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Received
Rechercher sur…
Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind() In uvc_function_bind() error path, we use usb_ep_free_request which uses uvc->control_req but does not set it to NULL afterwards. Thus, uvc->control_req is a dangling pointer causing a UAF. Also we do not set the uvc->control_buf pointer to NULL after freeing it, which is another dangling pointer. Fix it by setting uvc->control_req to NULL after we run usb_ep_free_request() and uvc->control_buf to NULL after kfree. Do the same for uvc_function_unbind().
Références
- https://git.kernel.org/stable/c/ddb1b0d5d858584ed0d3a5aaa042ee693998c7e2
- https://git.kernel.org/stable/c/85dd5e8bd6776d02854f2847d83429f1f712e99c
- https://git.kernel.org/stable/c/502a7f5b79b7ba751988789e982924f8f496129f
- https://git.kernel.org/stable/c/bec7708eb3b5295d12e931db24381b7c94c72953
- https://git.kernel.org/stable/c/8e88ed8a374de67270d38689f2a81018909cafbb
- https://git.kernel.org/stable/c/9897b7da8c0ad8356c1b8649379fcb5a689462cb
- https://git.kernel.org/stable/c/38f822ddce9355893d734279a26ddec45182197e
- https://git.kernel.org/stable/c/bdab5605259ba5d6ff927c1a85cc83eb3ecfdacc
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| 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) |
Références européennes
- ENISA EUVD · EUVD-2026-76645
- GCVE · GCVE-0-2026-89733
Avis du CERT-FR
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1289 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1253 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 0f9df939385527049c8062a099fbfa1479fe7ce0 < ddb1b0d5d858584ed0d3a5aaa042ee693998c7e2 ; affected 0f9df939385527049c8062a099fbfa1479fe7ce0 < 85dd5e8bd6776d02854f2847d83429f1f712e99c ; affected 0f9df939385527049c8062a099fbfa1479fe7ce0 < 502a7f5b79b7ba751988789e982924f8f496129f ; affected 0f9df939385527049c8062a099fbfa1479fe7ce0 < bec7708eb3b5295d12e931db24381b7c94c72953 ; affected 0f9df939385527049c8062a099fbfa1479fe7ce0 < 8e88ed8a374de67270d38689f2a81018909cafbb ; affected 0f9df939385527049c8062a099fbfa1479fe7ce0 < 9897b7da8c0ad8356c1b8649379fcb5a689462cb |
| Linux · Linux | affected 3.8 ; unaffected 0 < 3.8 ; unaffected 5.10.270 ≤ 5.10.* ; unaffected 5.15.221 ≤ 5.15.* ; unaffected 6.1.188 ≤ 6.1.* ; unaffected 6.6.157 ≤ 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 |