CVE-2026-98997
- Source
- https://cve.org/CVERecord?id=CVE-2026-98997
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-98997.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-98997
- Downstream
- Published
- 2026-10-23T12:20:16Z
- Modified
- 2026-10-25T02:47:28Z
- Summary
- drm/amdgpu/userq: only accept doorbell BOs as queue doorbell
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu/userq: only accept doorbell BOs as queue doorbell
amdgpu_userq_get_doorbell_index() pins any BO passed as doorbell_handle into the doorbell domain. For a regular BO, TTM moves it with ttm_bo_move_null() and its contents are lost. Since an importer on the same device gets the exporter's GEM object, a client can do this to a buffer another client shared with it.
Reject BOs that were not created in the doorbell domain.
v2: drop the error message, use a local abo variable (Christian)
(cherry picked from commit f7497bbc19db4821c62b9d97b31c9086feb2d917)
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98997.json" }- References
-
- https://git.kernel.org/stable/c/112dbe2b10d6d088a6c599980dd960dcbfa55ff0
- https://git.kernel.org/stable/c/7f7c88dbf4d543f6703e53bdeed380e886733167
- https://git.kernel.org/stable/c/8640b3f961d743d6dc0458c2b53a3af434690cc1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98997.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-98997
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git