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)
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 7.0, < 7.0.13CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
7.1CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | ||
7.1CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | ||
7.1CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* | ||
7.1CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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