Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/i915: clear CRTC color blob pointers after dropping refs intel_crtc_put_color_blobs() drops the CRTC color blob references, but leaves the corresponding pointers unchanged. This can matter in intel_crtc_prepare_cleared_state(), which frees the old CRTC hw state before calling intel_dp_tunnel_atomic_clear_stream_bw(). The latter can fail while looking up the DP tunnel group state, for example with -EDEADLK. If that happens, the function returns without completing the cleared state preparation. The failed atomic state will then be cleared by the atomic core and intel_crtc_free_hw_state() can be called again for the same state, dropping the same blob references again. Clear the blob pointers after dropping the references so repeated cleanup of the same CRTC hw state is safe. (cherry picked from commit d5005addb5f68e8a0edce249506757bdc9e3d8c8)
CVSS Score
HIGH
References
- https://git.kernel.org/stable/c/164afa1a3af8e8c91b4a6d5fd7b79a44ec70abf0
- https://git.kernel.org/stable/c/2024940522ef451098c940ab0b82d647de5e5d9b
- https://git.kernel.org/stable/c/31f077088e0faae6be8377741f356dea1b94ba46
- https://git.kernel.org/stable/c/ac554ad943610031a25795d6ef71316f6164c136
FAQ
What is CVE-2026-72452?
CVE-2026-72452 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: drm/i915: clear CRTC color blob pointers after dropping refs intel_crtc_put_color_blobs() drops the CRTC color blob references, bu...
How severe is CVE-2026-72452?
CVE-2026-72452 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-72452?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.