Copyright © 2012 Red Hat, Inc. All rights reserved. 2026-05-06T00:00:00 kernel: drm/amd/display: Add signal type check for dcn401 get_phyd32clk_src CWE-1287

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add signal type check for dcn401 get_phyd32clk_src Trying to access link enc on a dpia link will cause a crash otherwise

A flaw was found in the `drm/amd/display` component of the Linux kernel. A missing signal type check in the `dcn401 get_phyd32clk_src` function, when attempting to access link encoder (`link enc`) on a DisplayPort Interoperability and Compliance Association (DPIA) link, can lead to a system crash. This vulnerability could result in a Denial of Service (DoS).

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-43243 https://nvd.nist.gov/vuln/detail/CVE-2026-43243 https://lore.kernel.org/linux-cve-announce/2026050600-CVE-2026-43243-990c@gregkh/T