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NVD / CVE Program· CNA Linux

CVE-2025-37980: block: fix resource leak in blk_register_queue() error path

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: 0.19% (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 40f2eb9b531475dd01b683fdaf61ca3cfd03a51e, 41e43134ddda35949974be40520460a12dda3502, 549cbbd14bbec12469ceb279b79c763c8a24224e; azl3 kernel 6.6.85.1-4 on Azure Linux 3.0 6.6.92.2-1; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.92.2-1.

Low priority for now. Upgrade to Linux Linux 40f2eb9b531475dd01b683fdaf61ca3cfd03a51e, 41e43134ddda35949974be40520460a12dda3502, 549cbbd14bbec12469ceb279b79c763c8a24224e; azl3 kernel 6.6.85.1-4 on Azure Linux 3.0 6.6.92.2-1; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.92.2-1 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: block: fix resource leak in blk_register_queue() error path When registering a queue fails after blk_mq_sysfs_register() is successful but the function later encounters an error, we need to clean up the blk_mq_sysfs resources. Add the missing blk_mq_sysfs_unregister() call in the error path to properly clean up these resources and prevent a memory leak.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 20, 2025
Updated
Nov 10, 2026
EPSS
0.1% · 9th percentile

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 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-37980

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • 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 kernel3.13 and later · before 6.6.88
  • linux linux kernel6.7 and later · before 6.12.25
  • linux linux kernel6.13 and later · before 6.14.4
  • linux linux kernel6.15

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

    • 3.13affected
    • 320ae51feed5c2f13664aa05a76bec198967e04d and later · before 6af6d5feebf9423ab3b252831d1f52de31a8b5e0affected · git
    • 320ae51feed5c2f13664aa05a76bec198967e04d and later · before 549cbbd14bbec12469ceb279b79c763c8a24224eaffected · git
    • 320ae51feed5c2f13664aa05a76bec198967e04d and later · before 41e43134ddda35949974be40520460a12dda3502affected · git
    • 320ae51feed5c2f13664aa05a76bec198967e04d and later · before 55a7bb2708f7c7c5b366d4e40916113168a3824caffected · git
    • 320ae51feed5c2f13664aa05a76bec198967e04d and later · before 40f2eb9b531475dd01b683fdaf61ca3cfd03a51eaffected · git
    • before 3.13not affected · semver
    • 6.1.168 and later · up to and including 6.1.*not affected · semver
    • 6.6.88 and later · up to and including 6.6.*not affected · semver
    • 6.12.25 and later · up to and including 6.12.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:10kernelbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64kbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-corebefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-debugbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-debug-corebefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-debug-develbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-debug-devel-matchedbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-debug-modulesbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-debug-modules-corebefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-debug-modules-extrabefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-develbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-devel-matchedbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-modulesbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-modules-corebefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-64k-modules-extrabefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-abi-stablelistsbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-corebefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-cross-headersbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-debugbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-debug-corebefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-debug-develbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-debug-devel-matchedbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-debug-modulesbefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2
AlmaLinux:10kernel-debug-modules-corebefore 6.12.0-211.7.1.el10_26.12.0-211.7.1.el10_2

+96

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-2025-37977May 20, 2025 · scsi: ufs: exynos: Disable iocc if dma-coherent property isn't set
    22Monitor
  • ← EarlierCVE-2025-37978May 20, 2025 · block: integrity: Do not call set_page_dirty_lock()
    22Monitor
  • Later →CVE-2025-37981May 20, 2025 · scsi: smartpqi: Use is_kdump_kernel() to check for kdump
    31Monitor

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 Linux40f2eb9b531475dd01b683fdaf61ca3cfd03a51eVendor (CNA)
Linux Linux41e43134ddda35949974be40520460a12dda3502Vendor (CNA)
Linux Linux549cbbd14bbec12469ceb279b79c763c8a24224eVendor (CNA)
Linux Linux55a7bb2708f7c7c5b366d4e40916113168a3824cVendor (CNA)
Linux Linux6af6d5feebf9423ab3b252831d1f52de31a8b5e0Vendor (CNA)
azl3 kernel 6.6.85.1-4 on Azure Linux 3.06.6.92.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.92.2-1 on Azure Linux 3.06.6.92.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0Release NotesMicrosoft (MSRC)
almalinux:kernel6.12.0-211.7.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k6.12.0-211.7.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-core6.12.0-211.7.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug6.12.0-211.7.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-core6.12.0-211.7.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-devel6.12.0-211.7.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched6.12.0-211.7.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-modules6.12.0-211.7.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-modules-core6.12.0-211.7.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra6.12.0-211.7.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-devel6.12.0-211.7.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-devel-matched6.12.0-211.7.1.el10_2 · AlmaLinux:10Package registry (OSV)
debian:linux6.1.170-1 · Debian:12Package registry (OSV)
red hat:kernel-64k-debug-debuginfo0:6.12.0-211.7.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-debug-devel0:6.12.0-211.7.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-debug-devel-matched0:6.12.0-211.7.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-debuginfo0:6.12.0-211.7.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-devel0:6.12.0-211.7.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-devel-matched0:6.12.0-211.7.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-debug-debuginfo0:6.12.0-211.7.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-debug-devel0:6.12.0-211.7.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-debug-devel-matched0:6.12.0-211.7.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)

+3

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)

CWE-401 · Missing Release of Memory after Effective Lifetime

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. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

Show all references (7 more)

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

All records