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NVD / CVE Program· CNA Linux

CVE-2025-21802: net: hns3: fix oops when unload drivers paralleling

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 4.20, 5.10.235, 5.15.

Low priority for now. Upgrade to Linux Linux 4.20, 5.10.235, 5.15 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 27, 2025
Updated
Oct 15, 2026
EPSS
0.2% · 11th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.19.214 and later · before 4.20
  • linux linux kernel5.4.156 and later · before 5.5
  • linux linux kernel5.10.76 and later · before 5.10.235
  • linux linux kernel5.14.15 and later · before 5.15
  • linux linux kernel5.15.1 and later · before 5.15.179
  • linux linux kernel5.16 and later · before 6.1.129
  • linux linux kernel6.2 and later · before 6.6.76
  • linux linux kernel6.7 and later · before 6.12.13
  • linux linux kernel6.13 and later · before 6.13.2
  • linux linux kernel5.15

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • b06ad258e01389ca3ff13bc180f3fcd6a608f1cd, c4b64011e458aa2b246cd4e42012cfd83d2d9a5c, 9b5a29f0acefa3eb1dbe2fa302b393eeff64d933, 5.15affected
    • d36b15e3e7b5937cb1f6ac590a85facc3a320642 and later · before 622d92a67656e5c4d2d6ccac02d688ed995418c6affected · git
    • 0dd8a25f355b4df2d41c08df1716340854c7d4c5 and later · before 8c640dd3d900cc8988a39c007591f1deee776df4affected · git
    • 0dd8a25f355b4df2d41c08df1716340854c7d4c5 and later · before e876522659012ef2e73834a0b9f1cbe3f74d5fadaffected · git
    • 0dd8a25f355b4df2d41c08df1716340854c7d4c5 and later · before b5a8bc47aa0a4aa8bca5466dfa2d12dbb5b3cd0caffected · git
    • 0dd8a25f355b4df2d41c08df1716340854c7d4c5 and later · before 82736bb83fb0221319c85c2e9917d0189cd84e1eaffected · git
    • 0dd8a25f355b4df2d41c08df1716340854c7d4c5 and later · before cafe9a27e22736d4a01b3933e36225f9857c7988affected · git
    • 0dd8a25f355b4df2d41c08df1716340854c7d4c5 and later · before 92e5995773774a3e70257e9c95ea03518268bea5affected · git
    • 5.10.76 and later · before 5.10.235affected · semver
    • 4.19.214 and later · before 4.20affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.129-16.1.129-1
Debian:13linuxbefore 6.12.13-16.12.13-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-21824Feb 27, 2025 · gpu: host1x: Fix a use of uninitialized mutex
    22Monitor
  • ← EarlierCVE-2025-21801Feb 27, 2025 · net: ravb: Fix missing rtnl lock in suspend/resume path
    22Monitor
  • Later →CVE-2025-21806Feb 27, 2025 · net: let net.core.dev_weight always be non-zero
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux4.20Vendor (CNA)
Linux Linux5.10.235Vendor (CNA)
Linux Linux5.15Vendor (CNA)
Linux Linux5.5Vendor (CNA)
Linux Linux622d92a67656e5c4d2d6ccac02d688ed995418c6Vendor (CNA)
Linux Linux82736bb83fb0221319c85c2e9917d0189cd84e1eVendor (CNA)
Linux Linux8c640dd3d900cc8988a39c007591f1deee776df4Vendor (CNA)
Linux Linux92e5995773774a3e70257e9c95ea03518268bea5Vendor (CNA)
Linux Linuxb5a8bc47aa0a4aa8bca5466dfa2d12dbb5b3cd0cVendor (CNA)
Linux Linuxcafe9a27e22736d4a01b3933e36225f9857c7988Vendor (CNA)
Linux Linuxe876522659012ef2e73834a0b9f1cbe3f74d5fadVendor (CNA)
debian:linux6.1.129-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (10 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records