CVE-2026-43243: drm/amd/display: Add signal type check for dcn401 get_phyd32clk_src
drm/amd/display: Add signal type check for dcn401 getphyd32clksrc
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.12.85-1 - Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.19.6-1 - Upgrade
Upgrade
linux/Kernelto a version that resolves this vulnerability.Fixed in 6.12.75 - Upgrade
Upgrade
linux/Kernelto a version that resolves this vulnerability.Fixed in 6.18.16 - Upgrade
Upgrade
linux/Kernelto a version that resolves this vulnerability.Fixed in 6.19.6 - Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.116-1Fixed in 7.2.15-1Fixed in 7.3.3-1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-43243?
CVE-2026-43243 has been classified as a medium severity vulnerability due to its potential impact on the Linux kernel's display management.
How do I fix CVE-2026-43243?
To fix CVE-2026-43243, ensure you update your Linux kernel to a version that includes the patch for this vulnerability.
Which systems are affected by CVE-2026-43243?
CVE-2026-43243 affects the Linux kernel specifically within the drm/amd/display component.
What type of vulnerability is CVE-2026-43243?
CVE-2026-43243 is a vulnerability related to improper signal type checks in the AMD display driver for the Linux kernel.
Is there a patch available for CVE-2026-43243?
Yes, a patch for CVE-2026-43243 has been made available in the latest updates of the Linux kernel.