ghsa-m3f2-pghf-98q6
Vulnerability from github
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)
{
"affected": [],
"aliases": [
"CVE-2025-40023"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-24T13:15:47Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/vf: Don\u0027t expose sysfs attributes not applicable for VFs\n\nVFs can\u0027t read BMG_PCIE_CAP(0x138340) register nor access PCODE\n(already guarded by the info.skip_pcode flag) so we shouldn\u0027t\nexpose attributes that require any of them to avoid errors like:\n\n [] xe 0000:03:00.1: [drm] Tile0: GT0: VF is trying to read an \\\n inaccessible register 0x138340+0x0\n [] RIP: 0010:xe_gt_sriov_vf_read32+0x6c2/0x9a0 [xe]\n [] Call Trace:\n [] xe_mmio_read32+0x110/0x280 [xe]\n [] auto_link_downgrade_capable_show+0x2e/0x70 [xe]\n [] dev_attr_show+0x1a/0x70\n [] sysfs_kf_seq_show+0xaa/0x120\n [] kernfs_seq_show+0x41/0x60\n\n(cherry picked from commit a2d6223d224f333f705ed8495bf8bebfbc585c35)",
"id": "GHSA-m3f2-pghf-98q6",
"modified": "2025-10-24T15:31:25Z",
"published": "2025-10-24T15:31:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40023"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/500dad428e5b0de4c1bdfa893822a6e06ddad0b5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bacbadedbba737da8ae6e0464bc0971c30cda4cb"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.