CVE-2026-43206

HIGH

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

Title source: cna
STIX 2.1

Description

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.

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 2.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (27)
Linux/Linux < 4.17
Linux/Linux 0fc8011f89feb8b2c3008583b777d097e1974660 - 3e04bc310d80b46eaf481f1fefcbcb37a187412d
Linux/Linux 0fc8011f89feb8b2c3008583b777d097e1974660 - 4857c37c7ba9aa38b9a4c694e8bd8d0091c87940
Linux/Linux 0fc8011f89feb8b2c3008583b777d097e1974660 - 4e72f419e4ed44cb3b60506752d8688c20a60a9b
Linux/Linux 0fc8011f89feb8b2c3008583b777d097e1974660 - 75fb57efdd7863fffbc39db23e9cad7aafda26ed
Linux/Linux 0fc8011f89feb8b2c3008583b777d097e1974660 - 8a70a26c9f34baea6c3199a9862ddaff4554a96d
Linux/Linux 0fc8011f89feb8b2c3008583b777d097e1974660 - b4034442cb090e4a980bdcc1540948606cbc951b
Linux/Linux 0fc8011f89feb8b2c3008583b777d097e1974660 - bfcd6b53e1f4feb182952f4ff9a137c36ceaf20b
Linux/Linux 0fc8011f89feb8b2c3008583b777d097e1974660 - de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781f
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 3e04bc310d80b46eaf481f1fefcbcb37a187412d
... and 17 more
Published May 06, 2026
Tracked Since May 06, 2026