NVD / CVE Program· CNA Linux

CVE-2024-26723: lan966x: Fix crash when adding interface under a lag

Noroxi assessment

Priority: Monitor (action score 31/100)

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: 0.24% (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 15faa1f67ab405d47789d4702f587ec7df7ef03e, 2a492f01228b7d091dfe38974ef40dccf8f9f2f1, 48fae67d837488c87379f0c9f27df7391718477c.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 15faa1f67ab405d47789d4702f587ec7df7ef03e, 2a492f01228b7d091dfe38974ef40dccf8f9f2f1, 48fae67d837488c87379f0c9f27df7391718477c 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: lan966x: Fix crash when adding interface under a lag There is a crash when adding one of the lan966x interfaces under a lag interface. The issue can be reproduced like this: ip link add name bond0 type bond miimon 100 mode balance-xor ip link set dev eth0 master bond0 The reason is because when adding a interface under the lag it would go through all the ports and try to figure out which other ports are under that lag interface. And the issue is that lan966x can have ports that are NULL pointer as they are not probed. So then iterating over these ports it would just crash as they are NULL pointers. The fix consists in actually checking for NULL pointers before accessing something from the ports. Like we do in other places.

HighCVSS 7.8 · v3.1—No exploit Fix available

Denial of service

BDU:2024-06901

Published: Apr 3, 2024
Updated: Jun 17, 2026
EPSS: 0.2% · 15th percentile
CWE: CWE-400

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.2%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

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

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Noroxi analysis

What does it mean in your environment?

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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.

Vendor	Product	CPE
linux	linux kernel	cpe:2.3:o:linux:linux_kernel

Affected versions

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

linux linux kernel6.1 and later · before 6.1.79
linux linux kernel6.2 and later · before 6.6.18
linux linux kernel6.7 and later · before 6.7.6
linux linux kernel6.8

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
- 6.1affected
- cabc9d49333df72fe0f6d58bdcf9057ba341e701 and later · before b9357489c46c7a43999964628db8b47d3a1f8672affected · git
- cabc9d49333df72fe0f6d58bdcf9057ba341e701 and later · before 48fae67d837488c87379f0c9f27df7391718477caffected · git
- cabc9d49333df72fe0f6d58bdcf9057ba341e701 and later · before 2a492f01228b7d091dfe38974ef40dccf8f9f2f1affected · git
- cabc9d49333df72fe0f6d58bdcf9057ba341e701 and later · before 15faa1f67ab405d47789d4702f587ec7df7ef03eaffected · git
- before 6.1not affected · semver
- 6.1.79 and later · up to and including 6.1.*not affected · semver
- 6.6.18 and later · up to and including 6.6.*not affected · semver
- 6.7.6 and later · up to and including 6.7.*not affected · semver
- 6.8 and laternot affected · original_commit_for_fix

Package-level exposure

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

Ecosystem	Package	Affected range	Fix
Debian:12	linux	before 6.1.82-1	6.1.82-1
Debian:13	linux	before 6.7.7-1	6.7.7-1

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-2024-26721Apr 3, 2024 · drm/i915/dsc: Fix the macro that calculates DSCC_/DSCA_ PPS reg address
22Monitor
← EarlierCVE-2024-26722Apr 3, 2024 · ASoC: rt5645: Fix deadlock in rt5645_jack_detect_work()
22Monitor
Later →CVE-2024-26724Apr 3, 2024 · net/mlx5: DPLL, Fix possible use after free after delayed work timer triggers
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 / package	Fixed version	Source
Linux Linux	15faa1f67ab405d47789d4702f587ec7df7ef03e	Vendor (CNA)
Linux Linux	2a492f01228b7d091dfe38974ef40dccf8f9f2f1	Vendor (CNA)
Linux Linux	48fae67d837488c87379f0c9f27df7391718477c	Vendor (CNA)
Linux Linux	b9357489c46c7a43999964628db8b47d3a1f8672	Vendor (CNA)
debian:linux	6.1.82-1 · Debian:12	Package 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.

CVE-2024-3946283 days apartclk: bcm: dvp: Assign ->num before accessing ->hws
39Monitor
CVE-2021-444083 days apartx86/xen: Drop USERGS_SYSRET64 paravirt call
35Monitor
CVE-2021-4731348 days apartcpufreq: CPPC: Fix potential memleak in cppc_cpufreq_cpu_init
33Monitor
CVE-2021-4702335 days apartnet: marvell: prestera: fix port event handling on init
32Monitor
CVE-2024-3861677 days apartwifi: carl9170: re-fix fortified-memset warning
32Monitor
CVE-2023-5260228 days apartjfs: fix slab-out-of-bounds Read in dtSearch
31Monitor

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.

TR-24-0265 · Apr 4, 2024(Linux Kernel Güncellemesi)

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.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-400 · Uncontrolled Resource Consumption

CVSS vector

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

nvd-secondary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

The bug in code

The whole CWE-400 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1function expand(node) {
2  return node.children.map(expand);
3}

Fixed

1const MAX_DEPTH = 32;
2function expand(node, depth = 0) {
3  if (depth > MAX_DEPTH) throw new Error("too deep");
4  return node.children.map((c) => expand(c, depth + 1));
5}

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

Endpoint Denial of ServiceT1499

Change log

Fix✗ → ✓Sep 28, 2026, 10:09 PM UTC

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

References

git.kernel.org/stable/c/15faa1f67ab405d47789d4702f587ec7df7ef03e

Show all references (3 more)

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

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