CVE-2025-38511
MEDIUM EPSS 3.3%
Published Aug 16, 202510mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Published Aug 16, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago
Description
In the Linux kernel, the following vulnerability has been resolved: drm/xe/pf: Clear all LMTT pages on alloc Our LMEM buffer objects are not cleared by default on alloc and during VF provisioning we only setup LMTT PTEs for the actually provisioned LMEM range. But beyond that valid range we might leave some stale data that could either point to some other VFs allocations or even to the PF pages. Explicitly clear all new LMTT page to avoid the risk that a malicious VF would try to exploit that gap. While around add asserts to catch any undesired PTE overwrites and low-level debug traces to track LMTT PT life-cycle. (cherry picked from commit 3fae6918a3e27cce20ded2551f863fb05d4bef8d)
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
3.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Affected Products 7
References 3
- git.kernel.org https://git.kernel.org/stable/c/5d21892c2e15b6a27f8bc907693eca7c6b7cc269
- git.kernel.org https://git.kernel.org/stable/c/705a412a367f383430fa34bada387af2e52eb043
- git.kernel.org https://git.kernel.org/stable/c/ff4b8c9ade1b82979fdd01e6f45b60f92eed26d8
Remediation
- git.kernel.org https://git.kernel.org/stable/c/5d21892c2e15b6a27f8bc907693eca7c6b7cc269
- git.kernel.org https://git.kernel.org/stable/c/705a412a367f383430fa34bada387af2e52eb043
- git.kernel.org https://git.kernel.org/stable/c/ff4b8c9ade1b82979fdd01e6f45b60f92eed26d8