drm/amdkfd: guard against NULL restore_mqd in CRIU queue restore (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.20 % · percentile 10 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: guard against NULL restore_mqd in CRIU queue restore Both create_queue_cpsch() and create_queue_nocpsch() unconditionally call mqd_mgr->restore_mqd() when a CRIU restore is in progress (qd != NULL), with no NULL guard. On any system where restore_mqd is not implemented for the given queue type, a user holding CAP_CHECKPOINT_RESTORE can trigger a kernel NULL pointer dereference and panic the machine by issuing KFD_IOC_CRIU_OP_RESTORE with a crafted queue restore object. Note that checkpoint_mqd is likewise unimplemented on GFX12, so no legitimate CRIU image can reach this path — only a hand-crafted restore payload. Add a NULL guard for restore_mqd immediately after mqd_mgr is resolved, unwinding via the existing error labels and returning -EOPNOTSUPP if the callback is not implemented. This mirrors the existing checkpoint_mqd guard in checkpoint_mqd().
References
European references
- ENISA EUVD · EUVD-2026-80407
- GCVE · GCVE-0-2026-89807
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · 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
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 48f0bdf4e38e42b8285622cfcfc7e6e490b1a719 < 19c73848493ab58e39649700da6de11710a36de1 ; affected 48f0bdf4e38e42b8285622cfcfc7e6e490b1a719 < ebffa44e7a21ead59ac4b4264e8fc2cbb44c4a21 ; affected 48f0bdf4e38e42b8285622cfcfc7e6e490b1a719 < c643c229babe2e8efc5eefe60e19d44868a643ff ; affected 48f0bdf4e38e42b8285622cfcfc7e6e490b1a719 < 6aa530642f95d5c48aa336416f94a35e7949b647 |
| Linux · Linux | affected 6.11 ; unaffected 0 < 6.11 ; unaffected 6.12.110 ≤ 6.12.* ; unaffected 6.18.51 ≤ 6.18.* ; unaffected 7.2.5 ≤ 7.2.* ; unaffected 7.3 ≤ * |
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 |