Bug 2486385 (CVE-2025-71315)

Summary: CVE-2025-71315 kernel: drm/vkms: Convert to DRM's vblank timer
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2026-06-08 16:01:22 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/vkms: Convert to DRM's vblank timer

Replace vkms' vblank timer with the DRM implementation. The DRM
code is identical in concept, but differs in implementation.

Vblank timers are covered in vblank helpers and initializer macros,
so remove the corresponding hrtimer in struct vkms_output. The
vblank timer calls vkms' custom timeout code via handle_vblank_timeout
in struct drm_crtc_helper_funcs.
Comment 1 Keith Grant 2026-06-08 16:40:04 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026060801-CVE-2025-71315-ee7d@gregkh/T