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CVE-2025-38511— drm/xe/pf: Clear all LMTT pages on alloc

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未清除所有LMTT页，可能导致恶意VF利用。

CVSS 8.8 · High EPSS 0.16% · P5

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux b1d20405821812ad70d95eefe58cadc6d50b0917< ff4b8c9ade1b82979fdd01e6f45b60f92eed26d8 affected
b1d20405821812ad70d95eefe58cadc6d50b0917< 5d21892c2e15b6a27f8bc907693eca7c6b7cc269 affected
b1d20405821812ad70d95eefe58cadc6d50b0917< 705a412a367f383430fa34bada387af2e52eb043 affected
6.8 affected
< 6.8 unaffected
6.12.39≤ 6.12.* unaffected
6.15.7≤ 6.15.* unaffected
6.16≤ * unaffected
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I. Basic Information for CVE-2025-38511

Vulnerability Information
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Vulnerability Title
drm/xe/pf: Clear all LMTT pages on alloc
Source: CVE Program / CVE List V5
Vulnerability 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)
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未清除所有LMTT页，可能导致恶意VF利用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux b1d20405821812ad70d95eefe58cadc6d50b0917 ~ ff4b8c9ade1b82979fdd01e6f45b60f92eed26d8 -
Linux Linux 6.8 -

II. Public POCs for CVE-2025-38511

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III. Intelligence Information for CVE-2025-38511

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Same Patch Batch · Linux · 2025-08-16 · 59 CVEs total

CVE-2025-38533 9.8 CRITICAL net: libwx: fix the using of Rx buffer DMA
CVE-2025-38527 9.8 CRITICAL smb: client: fix use-after-free in cifs_oplock_break
CVE-2025-38552 9.4 CRITICAL mptcp: plug races between subflow fail and subflow creation
CVE-2023-3867 9.1 CRITICAL ksmbd: fix out of bounds read in smb2_sess_setup
CVE-2023-4515 9.1 CRITICAL ksmbd: validate command request size
CVE-2023-32249 9.1 CRITICAL ksmbd: not allow guest user on multichannel
CVE-2025-38512 8.8 HIGH wifi: prevent A-MSDU attacks in mesh networks
CVE-2023-4130 8.1 HIGH ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea()
CVE-2023-3865 8.1 HIGH ksmbd: fix out-of-bound read in smb2_write
CVE-2025-38542 7.8 HIGH net: appletalk: Fix device refcount leak in atrtr_create()
CVE-2025-38550 7.8 HIGH ipv6: mcast: Delay put pmc->idev in mld_del_delrec()
CVE-2025-38502 7.8 HIGH bpf: Fix oob access in cgroup local storage
CVE-2025-38532 7.8 HIGH net: libwx: properly reset Rx ring descriptor
CVE-2025-38539 7.8 HIGH tracing: Add down_write(trace_event_sem) when adding trace event
CVE-2025-38536 7.8 HIGH net: airoha: fix potential use-after-free in airoha_npu_get()
CVE-2025-38514 7.5 HIGH rxrpc: Fix oops due to non-existence of prealloc backlog struct
CVE-2025-38501 7.5 HIGH ksmbd: limit repeated connections from clients with the same IP
CVE-2025-38524 7.5 HIGH rxrpc: Fix recv-recv race of completed call
CVE-2025-38526 7.5 HIGH ice: add NULL check in eswitch lag check
CVE-2025-38525 7.5 HIGH rxrpc: Fix irq-disabled in local_bh_enable()

Showing top 20 of 59 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38511

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