CVE-2026-68236
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
In the Linux kernel, the amd/display driver has a bug where the new_stream pointer is not set to NULL after release. A later error can cause a double release and potential use-after-free.
Risk Assessment
The risk includes potential system crash or memory safety violation, leading to unpredictable driver behavior.
Recommendation
Update the Linux kernel to a version containing the fix that sets new_stream to NULL after release.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: set new_stream to NULL after release In dm_update_crtc_state(), the skip_modeset path releases new_stream via dc_stream_release() but does not set the pointer to NULL. If a later error (e.g., color management failure) triggers the fail label, the error path calls dc_stream_release() again on the same dangling pointer, causing a double release and potential use-after-free. Fix this by setting new_stream to NULL after the initial release. (cherry picked from commit 99f3af19073b3ddbfd96e789124cce12c4277b28)