5.5

CVE-2025-21802: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2025-21802DEBIAN-CVE-2025-21802
Published 27-02-2025Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2025-21802 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.7% 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
0.21%
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 35
DLA-4102-1DLA-4178-1SUSE-SU-2025:01919-1SUSE-SU-2025:0847-1SUSE-SU-2025:0856-1SUSE-SU-2025:0955-1

Timeline

  1. 27-02-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix oops when unload drivers paralleling When unload hclge driver, it tries to disable sriov first for each ae_dev node from hnae3_ae_dev_list. If user unloads hns3 driver at the time, because it removes all the ae_dev nodes, and it may cause oops. But we can't simply use hnae3_common_lock for this. Because in the process flow of pci_disable_sriov(), it will trigger the remove flow of VF, which will also take hnae3_common_lock. To fixes it, introduce a new mutex to protect the unload process.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

+0.01 pp

From 0.20% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

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

Ubuntu135 products
  • linuxAll versions (No fix recorded) | < 5.15.0-140.150 | < 6.8.0-64.67
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1084.91 | < 6.8.0-1032.34
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ d36b15e3e7b5937cb1f6ac590a85facc3a320642, < 622d92a67656e5c4d2d6ccac02d688ed995418c6 | ≥ 0dd8a25f355b4df2d41c08df1716340854c7d4c5, < 8c640dd3d900cc8988a39c007591f1deee776df4 | ≥ 0dd8a25f355b4df2d41c08df1716340854c7d4c5, < e876522659012ef2e73834a0b9f1cbe3f74d5fad | ≥ 0dd8a25f355b4df2d41c08df1716340854c7d4c5, < b5a8bc47aa0a4aa8bca5466dfa2d12dbb5b3cd0c | ≥ 0dd8a25f355b4df2d41c08df1716340854c7d4c5, < 82736bb83fb0221319c85c2e9917d0189cd84e1e | ≥ 0dd8a25f355b4df2d41c08df1716340854c7d4c5, < cafe9a27e22736d4a01b3933e36225f9857c7988 | ≥ 0dd8a25f355b4df2d41c08df1716340854c7d4c5, < 92e5995773774a3e70257e9c95ea03518268bea5 | b06ad258e01389ca3ff13bc180f3fcd6a608f1cd | c4b64011e458aa2b246cd4e42012cfd83d2d9a5c | 9b5a29f0acefa3eb1dbe2fa302b393eeff64d933 | ≥ 5.10.76, < 5.10.235 | ≥ 4.19.214, < 4.20 | ≥ 5.4.156, < 5.5 | ≥ 5.14.15, < 5.15 | 5.15
  • linux_kernel≥ 4.19.214, < 4.20 | ≥ 5.4.156, < 5.5 | ≥ 5.10.76, < 5.10.235 | ≥ 5.14.15, < 5.15 | ≥ 5.15.1, < 5.15.179 | ≥ 5.16, < 6.1.129 | ≥ 6.2, < 6.6.76 | ≥ 6.7, < 6.12.13 | ≥ 6.13, < 6.13.2 | 5.15 | 5.15:rc7
Debian1 product
  • linux< 6.1.129-1 | < 6.12.13-1

3 vendors · 138 products

References

41 links
Show all 41 references