CVE-2024-36944: linux Improper Locking
Vulnerability summary
CVE-2024-36944 is a medium (CVSS 5.5) Improper Locking vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.4% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 28 · Related 25Timeline
- 30-05-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
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... ]
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
5%
Versus all other CVEs
30-day change
0.00 pp
From 0.16% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu110 products
- linux< 5.15.0-118.128 | < 6.8.0-40.40
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1067.73 | < 6.8.0-1013.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 8d278fc34cdd8a44e995fa93dfd31d619a2e1fe6, < 4a89ac4b0921c4ea21eb1b4cf3a469a91bacfcea | ≥ 84fb60063509e462e39c0e097c7d6dbb71c95967, < b548c53bc3ab83dc6fc86c8e840f013b2032267a | ≥ 42cbe04a5c77da74fb7161b0ae63f1f6e105d633, < 148ed8b4d64f94ab079c8f0d88c3f444db97ba97 | ≥ 13ab5db42a593f9904acc39055ee3ae75963fc88, < 3dfe35d8683daf9ba69278643efbabe40000bbf6 | ≥ 07ed11afb68d94eadd4ffc082b97c2331307c5ea, < 3628e0383dd349f02f882e612ab6184e4bb3dc10 | ≥ 5.15.156, < 5.15.159 | ≥ 6.1.87, < 6.1.91 | ≥ 6.6.28, < 6.6.31 | ≥ 6.8.7, < 6.8.10
- linux_kernel≥ 5.15.156, < 5.15.159 | ≥ 6.1.87, < 6.1.91 | ≥ 6.6.28, < 6.6.31 | ≥ 6.8.7, < 6.8.10 | 6.9:rc1 | 6.9:rc2 | 6.9:rc3 | 6.9:rc4 | 6.9:rc5 | 6.9:rc6 | 6.9:rc7
Debian1 product
- linux< 6.1.94-1 | < 6.8.11-1
3 vendors · 113 products
