CVE-2026-68436

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the drm/amd/display component where the dc create() function uses kzalloc() to allocate struct dc. Because struct dc has increased in size, it can exceed the page allocator's 4 MiB contiguous allocation limit depending on the compiler and configuration. When this limit is exceeded, the allocator returns NULL, causing the Display Manager (DM) initialization to fail and the amdgpu probe to abort with an -EINVAL error, which renders the display unusable.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.