In the Linux kernel, the following vulnerability has been resolved:
drm/xe/guc_submit: add missing locking in wedged_fini
Any non-wedged queue can have a zero refcount here and can be running concurrently with an async queue destroy, therefore dereferencing the queue ptr to check wedge status after the lookup can trigger UAF if queue is not wedged. Fix this by keeping the submission_state lock held around the check to postpone the free and make the check safe, before dropping again around the put() to avoid the deadlock.
(cherry picked from commit d28af0b6b9580b9f90c265a7da0315b0ad20bbfd)
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Ubuntu | — | Upgrade linux-image-realtimeUpgrade linux-image-lowlatency-64kUpgrade linux-image-oem-24.04Upgrade linux-image-virtualUpgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-lowlatencyUpgrade linux-image-6.11.0-1011-oracleUpgrade linux-image-genericUpgrade linux-image-awsUpgrade linux-image-oracleUpgrade linux-image-6.11.0-1009-gcpUpgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-oem-24.04bUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-oracle-64kUpgrade linux-image-6.11.0-1015-oemUpgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-6.11.0-1009-azureUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-6.11.0-18-genericUpgrade linux-image-raspiUpgrade linux-image-oem-24.04aUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-generic-64kUpgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-6.11.0-1009-awsUpgrade linux-image-azureUpgrade linux-image-6.11.0-1008-raspiUpgrade linux-image-gcpUpgrade linux-image-azure-fde | Feb 20, 2025 | Oct 21, 2024 |
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