drm/amdgpu/vcn4: avoid rereading IB param length (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.10 % · percentile 1 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn4: avoid rereading IB param length Reuse the parameter length returned by vcn_v4_0_enc_find_ib_param() instead of rereading it from the IB. This avoids a potential TOCTOU issue if the IB contents change between reads. (cherry picked from commit dbb02b4755f8c1f3773263f2d779872c1c0c073a)
Weaknesses (CWE)
- CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition
References
- https://git.kernel.org/stable/c/bbbe6a2a8d8dc87243438d3ffea2083b52d882d9
- https://git.kernel.org/stable/c/ff6aa542d91d76a185f69bd1997b94a560ff5f6b
- https://git.kernel.org/stable/c/bd868c077f67589ed2a714307ceaade5f246e302
- https://git.kernel.org/stable/c/c309626bf91fa0a0b583575654e6e14e81f818a3
- https://git.kernel.org/stable/c/3b4082fabc67c9780b06eb959e59dd92fa79c0f0
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-55488
- GCVE · GCVE-0-2026-68107
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-1255 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1202 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1164 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1069 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected cfdde9197ecd957281507be99af172671a57755c < bbbe6a2a8d8dc87243438d3ffea2083b52d882d9 ; affected 6dc4eddeb7e6cca7e1ab32cafbda79d06e652d84 < ff6aa542d91d76a185f69bd1997b94a560ff5f6b ; affected 2b10cb58d7a3fd621ec9b2ba765a092e562ef998 < bd868c077f67589ed2a714307ceaade5f246e302 ; affected 2b10cb58d7a3fd621ec9b2ba765a092e562ef998 < c309626bf91fa0a0b583575654e6e14e81f818a3 ; affected 2b10cb58d7a3fd621ec9b2ba765a092e562ef998 < 3b4082fabc67c9780b06eb959e59dd92fa79c0f0 ; affected b1dc92f55b22a80ded8f0263c9ef4ba902303895 |
| Linux · Linux | affected 6.17 ; unaffected 0 < 6.17 ; unaffected 6.6.148 ≤ 6.6.* ; unaffected 6.12.101 ≤ 6.12.* ; unaffected 6.18.42 ≤ 6.18.* ; unaffected 7.1.6 ≤ 7.1.* |
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 |