CVE-2026-53201 Revert "drm/xe: Skip exec queue schedule toggle if queue is idle during suspend"

What is CVE-2026-53201?

CVE-2026-53201 is a high-severity vulnerability in Linux kernel, published on 25 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

Revert "drm/xe: Skip exec queue schedule toggle if queue is idle during suspend"

This reverts commit 8533051ce92015e9cc6f75e0d52119b9d91610b6.

The idle-skip optimization bypasses GuC suspend, so the GPU may not perform the context switch that flushes TLB entries for invalidated userptr VMAs. In LR/preempt-fence VM mode, this can lead to missed TLB invalidation and page faults during userptr invalidation tests.

Restore unconditional schedule toggling on suspend so the context-switch TLB flush is always performed.

This optimization will be reintroduced with a fix that does not skip suspend in LR/preempt-fence VM mode.

(cherry picked from commit 6a1e7934d9a6cf46aecae00a99c2603d1295e170)

Which versions are affected by CVE-2026-53201?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-53201?

Apply the vendor's patch.

Is CVE-2026-53201 being exploited?

There is no known exploitation of CVE-2026-53201 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-53201, GHSA-xx7h-359j-qhv7, UBUNTU-CVE-2026-53201.