# CVE-2025-40023: linux: In the Linux kernel, the following vulnerability has been resolved:  drm/xe/vf: Don't expose sysfs attributes not app...

CVE-2025-40023 is fixed in linux on 1 platform by DEBIAN-CVE-2025-40023 (version 6.16.10-1), released October 24, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-40023
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0018
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 24, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  drm/xe/vf: Don't expose sysfs attributes not applicable for VFs  VFs can't read BMG_PCIE_CAP(0x138340) register nor access PCODE (already guarded by the info.skip_pcode flag) so we shouldn't expose attributes that require any of them to avoid errors like:   [] xe 0000:03:00.1: [drm] Tile0: GT0: VF is trying to read an \                      inaccessible register 0x138340+0x0  [] RIP: 0010:xe_gt_sriov_vf_read32+0x6c2/0x9a0 [xe]  [] Call Trace:  []  xe_mmio_read32+0x110/0x280 [xe]  []  auto_link_downgrade_capable_show+0x2e/0x70 [xe]  []  dev_attr_show+0x1a/0x70  []  sysfs_kf_seq_show+0xaa/0x120  []  kernfs_seq_show+0x41/0x60  (cherry picked from commit a2d6223d224f333f705ed8495bf8bebfbc585c35)

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.16.10-1 | [DEBIAN-CVE-2025-40023](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40023.md) | Oct 24, 2025 |

---

Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.