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)
History

Mon, 27 Oct 2025 22:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Sat, 25 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Fri, 24 Oct 2025 12:45:00 +0000

Type Values Removed Values Added
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)
Title drm/xe/vf: Don't expose sysfs attributes not applicable for VFs
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-10-24T12:24:58.554Z

Updated: 2025-10-24T12:24:58.554Z

Reserved: 2025-04-16T07:20:57.152Z

Link: CVE-2025-40023

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-24T13:15:47.510

Modified: 2025-10-27T13:20:15.637

Link: CVE-2025-40023

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-24T00:00:00Z

Links: CVE-2025-40023 - Bugzilla