Bug 2540464 (CVE-2026-97495) - CVE-2026-97495 kernel: drm/amdkfd: Check bounds on allocate_doorbell
Summary: CVE-2026-97495 kernel: drm/amdkfd: Check bounds on allocate_doorbell
Keywords:
Status: NEW
Alias: CVE-2026-97495
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-24 16:55 UTC by OSIDB Bzimport
Modified: 2026-09-30 08:03 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-09-24 16:55:10 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amdkfd: Check bounds on allocate_doorbell

allocated_doorbell has an option to set the doorbell id
to a specific value (used by CRIU). This value was not
bounds checked.

Check to confirm it's less than KFD_MAX_NUM_OF_QUEUES_PER_PROCESS.
Comment 1 Mauro Matteo Cascella 2026-09-30 07:50:20 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97495.mbox
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