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CVE-2026-68305

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/xe/vf: Add drm_dev guards when detaching CCS read/write buffers CCS read/write buffers are freed during BO destruction.

Published Aug 10, 2026EPSS 0.17%

Overview

CVE-2026-68305 is a high-severity vulnerability. It was published on August 10, 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/xe/vf: Add drm_dev guards when detaching CCS read/write buffers

CCS read/write buffers are freed during BO destruction. In some cases,

BOs may be destroyed after the device is unbound but while the DRM

structure remains valid, leading to NULL pointer dereferences when

accessing device resources.

BUG: kernel NULL pointer dereference, address: 0000000000000000

PGD 0 P4D 0

Oops: Oops: 0000 [#1] SMP NOPTI

CPU: 0 UID: 0 PID: 9376 Comm: xe_pat Not tainted 7.2.0-rc2+ #1 PREEMPT(lazy)

RIP: 0010:xe_sriov_vf_ccs_rw_update_bb_addr+0x4d/0xa0 [xe]

RSP: 0018:ffffcf304110b9c8 EFLAGS: 00010246

RAX: ffff8a85c38a0a00 RBX: 00000000810ef000 RCX: 0000000000000000

RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8a85c39c1888

RBP: ffffcf304110b9e8 R08: 0000000000000000 R09: 0000000000000000

R10: 0000000000000000 R11: 0000000000000000 R12: ffff8a85c39c1888

R13: 0000000000000000 R14: ffff8a85c39b4f28 R15: ffff8a85c3885000

FS: 00000

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/4c92afb4c143526d340545ca581e88e6952ea511Refgit.kernel.org/stable/c/523ed2831ee55b2a1edabdea96781651f9df9685

How CyberStrike helps

Frequently asked questions

What is CVE-2026-68305?

CVE-2026-68305 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-68305?

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-2026-68305?

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-2026-68305?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-68305 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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