CVE-2025-40062: linux

CVSS: UnknownDeferred
AliasesUBUNTU-CVE-2025-40062DEBIAN-CVE-2025-40062
Published 28-10-2025Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2025-40062 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.4% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.20%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 36 · Related 32
DLA-4379-1DSA-6053-1MGASA-2025-0309MGASA-2025-0310OPENSUSE-SU-2025:15702-1OPENSUSE-SU-2025:20091-1

Timeline

  1. 28-10-2025
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/qm - set NULL to qm->debug.qm_diff_regs When the initialization of qm->debug.acc_diff_reg fails, the probe process does not exit. However, after qm->debug.qm_diff_regs is freed, it is not set to NULL. This can lead to a double free when the remove process attempts to free it again. Therefore, qm->debug.qm_diff_regs should be set to NULL after it is freed.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

+0.01 pp

From 0.19% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.20%

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

No weakness data has been published for this record.

Affected systems

Ubuntu127 products
  • linux< 6.8.0-106.106 | < 6.17.0-14.14
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1050.53 | < 6.17.0-1007.7
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.158-1 | < 6.12.57-1 | < 6.17.6-1
Linux1 product
  • linux≥ eda60520cfe3aba9f088c68ebd5bcbca9fc6ac3c, < a7836260d5121949ba734e840d42a86ab4a32fcc | ≥ 7fc8d9a525b5c3f8dfa5ed50901e764d8ede7e1e, < 1750f1ec143ebabdbdfa013668665c9d5042c430 | ≥ 8be0913389718e8d27c4f1d4537b5e1b99ed7739, < a87a21a56244b8f4eb357f6bad879247005bbe38 | ≥ 8be0913389718e8d27c4f1d4537b5e1b99ed7739, < 7226a0650ad5705bd8d39a11be270fa21ed1e6a5 | ≥ 8be0913389718e8d27c4f1d4537b5e1b99ed7739, < f0cafb02de883b3b413d34eb079c9680782a9cc1 | e0a2d2df9ba7bd6bd7e0a9b6a5e3894f7e8445b3 | ≥ 6.1.98, < 6.1.156 | ≥ 6.6.39, < 6.6.112 | ≥ 6.9.9, < 6.10 | 6.10

3 vendors · 129 products

References

24 links
Show all 24 references