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In the Linux kernel, the following vulnerability has been resolved:
drm/xe: Fix oops in xe_gem_fault when running core_hotunplug test.
I saw an oops in xe_gem_fault when running the xe-fast-feedback testlist against the realtime kernel without debug options enabled.
The panic happens after core_hotunplug unbind-rebind finishes. Presumably what happens is that a process mmaps, unlocks because of the FAULT_FLAG_RETRY_NOWAIT logic, has no process memory left, causing ttm_bo_vm_dummy_page() to return VM_FAULT_NOPAGE, since there was nothing left to populate, and then oopses in "mem_type_is_vram(tbo->resource->mem_type)" because tbo->resource is NULL.
It's convoluted, but fits the data and explains the oops after the test exits.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 9, 2025 |
| Ubuntu | — | Upgrade linux-image-genericUpgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-realtimeUpgrade linux-image-raspi-6.17Upgrade linux-image-generic-6.17Upgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-oracleUpgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-aws-6.17Upgrade linux-image-aws-64kUpgrade linux-image-virtualUpgrade linux-image-6.17.0-1011-oemUpgrade linux-image-gcpUpgrade linux-image-awsUpgrade linux-image-oracle-6.17Upgrade linux-image-6.17.0-1007-awsUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-azure-6.17Upgrade linux-image-oracle-64k-6.17Upgrade linux-image-realtime-6.17Upgrade linux-image-gcp-64kUpgrade linux-image-azureUpgrade linux-image-aws-64k-6.17Upgrade linux-image-generic-64k-6.17Upgrade linux-image-6.17.0-14-genericUpgrade linux-image-generic-64kUpgrade linux-image-oracle-64kUpgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-gcp-6.17Upgrade linux-image-raspiUpgrade linux-image-oem-6.17Upgrade linux-image-virtual-6.17Upgrade linux-image-gcp-64k-6.17 | Feb 13, 2026 | Feb 12, 2026 |
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