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)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade linux-azureUpgrade linux-raspiUpgrade linuxUpgrade linux-riscvUpgrade linux-oracleUpgrade linux-realtimeUpgrade linux-gcpUpgrade linux-aws | Nov 4, 2025 | Oct 24, 2025 |
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