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CVE-2024-27019· NVD / CVE Program· CNA Linux

netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get()

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get() nft_unregister_obj() can concurrent with __nft_obj_type_get(), and there is not any protection when iterate over nf_tables_objects list in __nft_obj_type_get(). Therefore, there is potential data-race of nf_tables_objects list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_objects list in __nft_obj_type_get(), and use rcu_read_lock() in the caller nft_obj_type_get() to protect the entire type query process.

MediumCVSS 4.7 · v3.1—No exploit Fix available
Published
May 1, 2024
Updated
Aug 5, 2026
EPSS
0.2% · 10th percentile
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Action score

18

Monitor

Low priority for now.

CVSS
18 / 40 · 4.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
4.7
CNA · Linux
7.8
3.1 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

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Affected systems

VendorProduct
linuxlinux kernel
fedoraprojectfedora

Affected versions

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

  • fedoraproject fedora38
  • fedoraproject fedora39
  • fedoraproject fedora40
  • linux linux kernel6.7 and later · before 6.8.8
  • linux linux kernel4.10 and later · before 5.15.157
  • linux linux kernel5.16 and later · before 6.1.88
  • linux linux kernel6.2 and later · before 6.6.29
  • linux linux kernel6.9

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

    • 4.10affected
    • e50092404c1bc7aaeb0a0f4077fa6f07b073a20f and later · before cade34279c2249eafe528564bd2e203e4ff15f88affected · git
    • e50092404c1bc7aaeb0a0f4077fa6f07b073a20f and later · before 379bf7257bc5f2a1b1ca8514e08a871b7bf6d920affected · git
    • e50092404c1bc7aaeb0a0f4077fa6f07b073a20f and later · before df7c0fb8c2b9f9cac65659332581b19682a71349affected · git
    • e50092404c1bc7aaeb0a0f4077fa6f07b073a20f and later · before ad333578f736d56920e090d7db1f8dec891d815eaffected · git
    • e50092404c1bc7aaeb0a0f4077fa6f07b073a20f and later · before 4ca946b19caf655a08d5e2266d4d5526025ebb73affected · git
    • e50092404c1bc7aaeb0a0f4077fa6f07b073a20f and later · before d78d867dcea69c328db30df665be5be7d0148484affected · git
    • before 4.10not affected · semver
    • 5.10.219 and later · up to and including 5.10.*not affected · semver
    • 5.15.157 and later · up to and including 5.15.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:9bpftoolbefore 7.3.0-427.33.1.el9_47.3.0-427.33.1.el9_4
AlmaLinux:9kernelbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64kbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-corebefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-debugbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-debug-corebefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-debug-develbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-debug-devel-matchedbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-debug-modulesbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-debug-modules-corebefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-debug-modules-extrabefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-develbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-devel-matchedbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-modulesbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-modules-corebefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-64k-modules-extrabefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-abi-stablelistsbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-corebefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-cross-headersbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-debugbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-debug-corebefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-debug-develbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-debug-devel-matchedbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4
AlmaLinux:9kernel-debug-modulesbefore 5.14.0-427.33.1.el9_45.14.0-427.33.1.el9_4

+96

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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 Linux379bf7257bc5f2a1b1ca8514e08a871b7bf6d920Vendor (CNA)
Linux Linux4ca946b19caf655a08d5e2266d4d5526025ebb73Vendor (CNA)
Linux Linuxad333578f736d56920e090d7db1f8dec891d815eVendor (CNA)
Linux Linuxcade34279c2249eafe528564bd2e203e4ff15f88Vendor (CNA)
Linux Linuxd78d867dcea69c328db30df665be5be7d0148484Vendor (CNA)
Linux Linuxdf7c0fb8c2b9f9cac65659332581b19682a71349Vendor (CNA)
azl3 kernel 6.6.22.1-2 on Azure Linux 3.06.6.35.1-5 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.35.1-5 on Azure Linux 3.0- · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.153.1-2 on CBL Mariner 2.05.15.158.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.158.1-1 on CBL Mariner 2.05.15.158.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
almalinux:bpftool7.3.0-427.33.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel5.14.0-427.33.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k5.14.0-427.33.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-core5.14.0-427.33.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug5.14.0-427.33.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-core5.14.0-427.33.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel5.14.0-427.33.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched5.14.0-427.33.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules5.14.0-427.33.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-core5.14.0-427.33.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra5.14.0-427.33.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel5.14.0-427.33.1.el9_4 · AlmaLinux:9Package registry (OSV)
debian:linux6.1.90-1 · Debian:12Package registry (OSV)
red hat:bpftool-debuginfo0:7.3.0-427.33.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-427.33.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-427.33.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-427.33.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-427.33.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-427.33.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-427.33.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)

+5

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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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.

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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.
  • Special conditions such as timing or configuration are required.

If successful

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

CVSS vector

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

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.

Change log

  1. Fix✗ → ✓

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

References

All records