CVE-2026-53201
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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)
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 8533051ce92015e9cc6f75e0d52119b9d91610b6 < b69b715f48ac7e802c89ed5924795c5b055da91e | affected |
| Linux | Linux | 8533051ce92015e9cc6f75e0d52119b9d91610b6 < fa7c84726dc217ce0c183926ef9411636c7a2213 | affected |
| Linux | Linux | 7.0 | affected |
| Linux | Linux | 0 < 7.0 | unaffected |
| Linux | Linux | 7.0.13 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/b69b715f48ac7e802c89ed5924795c5b055da91e
- https://git.kernel.org/stable/c/fa7c84726dc217ce0c183926ef9411636c7a2213
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.