Bug 2467156 (CVE-2026-43206) - CVE-2026-43206 kernel: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()
Summary: CVE-2026-43206 kernel: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_...
Keywords:
Status: NEW
Alias: CVE-2026-43206
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-06 13:07 UTC by OSIDB Bzimport
Modified: 2026-05-06 21:31 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2026-05-06 13:07:36 UTC
In the Linux kernel, the following vulnerability has been resolved:

drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()

The kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8
bytes via memset without checking the buffer size parameter. This allows
unprivileged userspace to trigger an out-of bounds kernel memory write
by passing a small buffer, leading to  potential privilege
escalation.


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