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CVE-2026-63884

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix potential UAF in TTM object purge TLDR: The bo->ttm object might be changed by calling ttm_bo_validate(), m…

Published Jul 19, 2026EPSS 0.18%

Overview

CVE-2026-63884 is a high-severity vulnerability. It was published on July 19, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

drm/i915: Fix potential UAF in TTM object purge

TLDR: The bo->ttm object might be changed by calling ttm_bo_validate(),

move casting it to an i915_tt object later to actually get the right

pointer.

A user reported hitting the following bug under heavy use on DG2:

[26620.095550] Oops: general protection fault, probably for non-canonical address 0xa56b6b6b6b6b6b8b: 0000 1 SMP NOPTI

[26620.095556] CPU: 2 UID: 0 PID: 631 Comm: Xorg Not tainted 6.18.8 #1 PREEMPT(lazy)

[26620.095558] Hardware name: ASRock B850M Steel Legend WiFi/B850M Steel Legend WiFi, BIOS 3.50 09/18/2025

[26620.095559] RIP: 0010:i915_ttm_purge+0x84/0x100 [i915]

[26620.095604] Code: 00 00 00 48 8d 54 24 10 48 89 e6 48 89 fb e8 83 aa ae ff 85 c0 75 6f 48 83 bb a8 01 00 00 00 74 2c 48 8b 45 78 48 85 c0 74 23 <48> 8b 78 20 48 c7 c2 ff ff ff ff 31 f6 e8 7a 73 e3 e0 48 8b 7d 78

[26620.095605] RSP: 0018:ffffc90005fd7430 EFLAGS: 00010282

[26620.09

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/073bcbc95e9648c976da1654c7590a8d6ee12c2dRefgit.kernel.org/stable/c/28b22dbaf407598cb3bb1d2c586a6f8018690ac2Refgit.kernel.org/stable/c/5c4063c87a619e4df954c179d24628636f5db15fRefgit.kernel.org/stable/c/a29654d451bbffe63d584a4cf64ad0efce6bcf1cRefgit.kernel.org/stable/c/c9ae7e7e3bc98615364313b08d7acea5239ded0bRefgit.kernel.org/stable/c/df73f3bc731af1c39ac5405bc59c4e7c6f8e9117

How CyberStrike helps

Frequently asked questions

What is CVE-2026-63884?

CVE-2026-63884 is a high-severity vulnerability. It was published on July 19, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-63884?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-63884?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-63884?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-63884 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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