5.5

CVE-2025-68223: linux Improper Locking

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2025-68223DEBIAN-CVE-2025-68223
Published 16-12-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2025-68223 is a medium (CVSS 5.5) Improper Locking vulnerability in linux. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.12%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 33 · Related 31
DLA-4476-1DSA-6127-1OPENSUSE-SU-2026:20145-1SUSE-SU-2026:0278-1SUSE-SU-2026:0281-1SUSE-SU-2026:0315-1

Timeline

  1. 16-12-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: delete radeon_fence_process in is_signaled, no deadlock Delete the attempt to progress the queue when checking if fence is signaled. This avoids deadlock. dma-fence_ops::signaled can be called with the fence lock in unknown state. For radeon, the fence lock is also the wait queue lock. This can cause a self deadlock when signaled() tries to make forward progress on the wait queue. But advancing the queue is unneeded because incorrectly returning false from signaled() is perfectly acceptable. (cherry picked from commit 527ba26e50ec2ca2be9c7c82f3ad42998a75d0db)

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.12%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

0.00 pp

From 0.12% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.12%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 6.8.0-106.106 | < 6.17.0-19.19
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1050.53 | < 6.17.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 954605ca3f897ad617123279eb3404a404cce5ab, < d40a72d7e3bad4dfb311ef078f5a57362f088c7f | ≥ 954605ca3f897ad617123279eb3404a404cce5ab, < 9d0ed508a9e2af82951ce7d834f58c139fc2bd9b | ≥ 954605ca3f897ad617123279eb3404a404cce5ab, < 73bc12d6a547f9571ce4393acfd73c004e2df9e5 | ≥ 954605ca3f897ad617123279eb3404a404cce5ab, < 7e3e9b3a44c23c8eac86a41308c05077d6d30f41 | ≥ 954605ca3f897ad617123279eb3404a404cce5ab, < 9eb00b5f5697bd56baa3222c7a1426fa15bacfb5 | 3.18
  • linux_kernel≥ 3.18, < 6.1.162 | ≥ 6.2, < 6.6.123 | ≥ 6.7, < 6.12.60 | ≥ 6.13, < 6.17.10 | 6.18:rc1 | 6.18:rc2 | 6.18:rc3 | 6.18:rc4 | 6.18:rc5 | 6.18:rc6
Debian1 product
  • linux< 6.1.162-1 | < 6.12.63-1 | < 6.17.10-1

3 vendors · 160 products

References

26 links
Show all 26 references