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linux-hwe-edge

linux-aws-5.0

linux-aws-5.3

linux-azure

linux-azure-5.3

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linux-gcp-5.3

linux-gke-4.15

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linux-azure-fde-5.15

linux-gcp-5.11

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linux-gcp-5.15

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linux-gke

linux-gke-5.15

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linux-gkeop-5.15

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linux-oem-5.17

A vulnerability in the Linux kernel's drm/hyperv subsystem was resolved that involved improper validation of resolution_count in SYNTHVID_RESOLUTION_RESPONSE messages, which could lead to out-of-bounds array access. Additionally, fallback handling for screen resolution probing on Windows 8 and Windows 10 was corrected to prevent framebuffer creation failures. The issue was addressed by bounding resolution_count and unifying fallback logic. This vulnerability affects multiple Linux kernel versions prior to 7.0.0-28.28 and related builds. A patch is available and included in updated Linux kernel packages. The CVSS score is 7.7, indicating a medium severity level. No known exploits are reported in the wild.

The Linux kernel vulnerability CVE-2026-64524 involves the drm/hyperv driver where SYNTHVID_RESOLUTION_RESPONSE messages with a resolution_count greater than 64 could cause out-of-bounds access of the supported_resolution array. This was due to missing validation of resolution_count against SYNTHVID_MAX_RESOLUTION_COUNT. Additionally, the fallback logic for screen resolution probing on Windows 8 and Windows 10 was flawed, causing uninitialized screen dimension variables and rejection of user-space framebuffer creation with -EINVAL errors. The fix bounds resolution_count and consolidates fallback handling to use WIN8 defaults when WIN10 probing fails. This vulnerability affects Linux kernel versions prior to 7.0.0-28.28 and related variants. The issue is patched in updated kernel releases as per Ubuntu security advisories USN-8618-1 and USN-8663-1.

Detailed information about In the Linux kernel, the following vulnerability has been resolved: drm/hyperv: validate resolution_count and fix WIN8 fallback A… (C

In the Linux kernel, the following vulnerability has been resolved: drm/hyperv: validate resolution_count and fix WIN8 fallback A… (CVE-2026-64524) - Live Threat Intelligence - Threat Radar | OffSeq.com

Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: drm/hyperv: validate resolution_count and fix WIN8 fallback A… (CVE-2026-64524)

Threats Tagged 'ghsa-2rhv-cg46-xrx8'