drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.13 % · percentile 2 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl() vidi_connection_ioctl() retrieves the driver_data from drm_dev->dev to obtain a struct vidi_context pointer. However, drm_dev->dev is the exynos-drm master device, and the driver_data contained therein is not the vidi component device, but a completely different device. This can lead to various bugs, ranging from null pointer dereferences and garbage value accesses to, in unlucky cases, out-of-bounds errors, use-after-free errors, and more. To resolve this issue, we need to store/delete the vidi device pointer in exynos_drm_private->vidi_dev during bind/unbind, and then read this exynos_drm_private->vidi_dev within ioctl() to obtain the correct struct vidi_context pointer.
Weaknesses (CWE)
- CWE-416 — Use After Free
References
- https://git.kernel.org/stable/c/2987642c5213508c6c9e718324c0d5289a92c474
- https://git.kernel.org/stable/c/65d1213baffa363f2eb1117b1dc7acc573b890f8
- https://git.kernel.org/stable/c/875fa28690e93ed5296c31d3344556c6bb867234
- https://git.kernel.org/stable/c/21ca24ba51a2c28bcc4df9d7e5a40b0eb66ab76d
- https://git.kernel.org/stable/c/e1aed617eb80b49eac2f8c7bb7a0990f641dd59b
- https://git.kernel.org/stable/c/b5fc86d753dd4c281a943b92f0eef02d31af03d7
- https://git.kernel.org/stable/c/a540f767642f75240a6c35f6a65b69e44cfcea9d
- https://git.kernel.org/stable/c/d3968a0d85b211e197f2f4f06268a7031079e0d0
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-2026-32240
- GCVE · GCVE-0-2026-45956
CERT-FR advisories
- CERTFR-2026-AVI-1229 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1093 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1066 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0985 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0926 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0696 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.3 < 5.10.253cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.203cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.167cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.130cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.18.14cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 6.19.4
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322 < 2987642c5213508c6c9e718324c0d5289a92c474 ; affected cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322 < 65d1213baffa363f2eb1117b1dc7acc573b890f8 ; affected cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322 < 875fa28690e93ed5296c31d3344556c6bb867234 ; affected cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322 < 21ca24ba51a2c28bcc4df9d7e5a40b0eb66ab76d ; affected cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322 < e1aed617eb80b49eac2f8c7bb7a0990f641dd59b ; affected cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322 < b5fc86d753dd4c281a943b92f0eef02d31af03d7 |
| Linux · Linux | affected 4.3 ; unaffected 0 < 4.3 ; unaffected 5.10.253 ≤ 5.10.* ; unaffected 5.15.203 ≤ 5.15.* ; unaffected 6.1.167 ≤ 6.1.* ; unaffected 6.6.130 ≤ 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 |