CVE-2026-98997
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)
Affected versions
Linux kernel versions
6.16
and later are affected. Fixed in
6.18.57,
7.2.11,
7.3
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2026-98997?
CVE-2026-98997 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.16 onward and has been patched in 6.18.57, 7.2.11 and 7.3. CVE-2026-98997 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-98997?
Yes. CVE-2026-98997 has been patched. Fixed versions include 6.18.57, 7.2.11 and 7.3. If you are running Linux kernel 6.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-98997 actively exploited?
No. CVE-2026-98997 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.