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CVE-2026-43206

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

Published: 5/6/2026 Last updated: 5/11/2026 Reserved: 5/1/2026

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.

CNA assigner: Linux (416baaa9-dc9f-4396-8d5f-8c081fb06d67) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 7.8 High CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Opam packages affected (29)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes ortools_solvers orun rawlink rawlink-eio rawlink-lwt restricted shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (4)

Product Vendor Version
Linux Linux n/a
Linux Linux Microsoft Office 2007 Service Pack 3, Microsoft Office Compatibility Pack Service Pack 3, Microsoft Word 2007, Microsoft Office 2010 Service Pack 2, Microsoft Word 2010 Service Pack 2, Microsoft Office 2013 Service Pack 1, Microsoft Office 2016, Microsoft Office Web Apps 2010 Service Pack 2, Microsoft Office Web Apps Server 2013 Service Pack 1, Microsoft Word 2013 RT Service Pack 1, Microsoft OneNote 2010 Service Pack 2, Microsoft SharePoint Enterprise Server 2013 Service Pack 1, Microsoft SharePoint Enterprise Server 2016, and Microsoft Word 2016
Linux Linux n/a
Linux Linux n/a

References (16)