CVE-2024-36944: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: Reapply "drm/qxl: simplify qxl_fence_wait" This reverts commit 07ed11afb68d94eadd4ffc082b97c2331307c5ea. Stephen Rostedt reports: "I went to run my tests on my VMs and the tests hung on boot up. Unfortunately, the most I ever got out was: [ 93.607888] Testing event system initcall: OK [ 93.667730] Running tests on all trace events: [ 93.669757] Testing all events: OK [ 95.631064] ------------[ cut here ]------------ Timed out after 60 seconds" and further debugging points to a possible circular locking dependency between the console_owner locking and the worker pool locking. Reverting the commit allows Steve's VM to boot to completion again. [ This may obviously result in the "[TTM] Buffer eviction failed" messages again, which was the reason for that original revert. But at this point this seems preferable to a non-booting system... ]

Affected products

• Linux Linux Kernel: from 5.15.156, before 5.15.159 (fixed in 5.15.159); from 6.1.87, before 6.1.91 (fixed in 6.1.91); from 6.6.28, before 6.6.31 (fixed in 6.6.31); from 6.8.7, before 6.8.10 (fixed in 6.8.10); version 6.9 only

Published 2024-05-30. Last modified 2026-06-17.