NVD / CVE Program· CNA Linux

CVE-2024-38612: ipv6: sr: fix invalid unregister error path

Noroxi assessment

Priority: Monitor (action score 28/100)

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: 0.66% (FIRST EPSS); higher than 51.8% of all records.
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.
According to CISA the attack is automatable: targets can be found by mass scanning.
Fixed version: Linux Linux 00e6335329f23ac6cf3105931691674e28bc598c, 10610575a3ac2a702bf5c57aa931beaf847949c7, 160e9d2752181fcf18c662e74022d77d3164cd45.

Low priority for now. Upgrade to Linux Linux 00e6335329f23ac6cf3105931691674e28bc598c, 10610575a3ac2a702bf5c57aa931beaf847949c7, 160e9d2752181fcf18c662e74022d77d3164cd45 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: ipv6: sr: fix invalid unregister error path The error path of seg6_init() is wrong in case CONFIG_IPV6_SEG6_LWTUNNEL is not defined. In that case if seg6_hmac_init() fails, the genl_unregister_family() isn't called. This issue exist since commit 46738b1317e1 ("ipv6: sr: add option to control lwtunnel support"), and commit 5559cea2d5aa ("ipv6: sr: fix possible use-after-free and null-ptr-deref") replaced unregister_pernet_subsys() with genl_unregister_family() in this error path.

HighCVSS 7.0 · v3.1—No exploit Fix available

Memory safety

BDU:2024-10602

Published: Jun 19, 2024
Updated: Oct 15, 2026
EPSS: 0.6% · 51th percentile
CWE: CWE-416

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 28 / 40 · 7.0 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.6%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · Linux: 7.0; NVD has not scored this yet; the score shown is the CNA’s.

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

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.

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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.

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 kernel4.10 and later · before 4.19.316
linux linux kernel4.20 and later · before 5.4.278
linux linux kernel5.5 and later · before 5.10.219
linux linux kernel5.11 and later · before 5.15.161
linux linux kernel5.16 and later · before 6.1.93
linux linux kernel6.2 and later · before 6.6.33
linux linux kernel6.7 and later · before 6.8.12
linux linux kernel6.9 and later · before 6.9.3

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
- 46738b1317e169b281ad74690276916e24d1be6d and later · before 10610575a3ac2a702bf5c57aa931beaf847949c7affected · git
- 46738b1317e169b281ad74690276916e24d1be6d and later · before 646cd236c55e2cb5f146fc41bbe4034c4af5b2a4affected · git
- 46738b1317e169b281ad74690276916e24d1be6d and later · before 00e6335329f23ac6cf3105931691674e28bc598caffected · git
- 46738b1317e169b281ad74690276916e24d1be6d and later · before 1a63730fb315bb1bab97edd69ff58ad45e04bb01affected · git
- 46738b1317e169b281ad74690276916e24d1be6d and later · before e77a3ec7ada84543e75722a1283785a6544de925affected · git
- 46738b1317e169b281ad74690276916e24d1be6d and later · before 3398a40dccb88d3a7eef378247a023a78472db66affected · git
- 46738b1317e169b281ad74690276916e24d1be6d and later · before 85a70ff1e572160f1eeb096ed48d09a1c9d4d89aaffected · git
- 46738b1317e169b281ad74690276916e24d1be6d and later · before c04d6a914e890ccea4a9d11233009a2ee7978bf4affected · git
- 46738b1317e169b281ad74690276916e24d1be6d and later · before 160e9d2752181fcf18c662e74022d77d3164cd45affected · git

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 6.1.94-1	6.1.94-1
Debian:13	linux	before 6.8.12-1	6.8.12-1

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-2024-38599Jun 19, 2024 · jffs2: prevent xattr node from overflowing the eraseblock
28Monitor
← EarlierCVE-2024-38608Jun 19, 2024 · net/mlx5e: Fix netif state handling
22Monitor
Later →CVE-2024-38615Jun 19, 2024 · cpufreq: exit() callback is optional
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 / package	Fixed version	Source
Linux Linux	00e6335329f23ac6cf3105931691674e28bc598c	Vendor (CNA)
Linux Linux	10610575a3ac2a702bf5c57aa931beaf847949c7	Vendor (CNA)
Linux Linux	160e9d2752181fcf18c662e74022d77d3164cd45	Vendor (CNA)
Linux Linux	1a63730fb315bb1bab97edd69ff58ad45e04bb01	Vendor (CNA)
Linux Linux	3398a40dccb88d3a7eef378247a023a78472db66	Vendor (CNA)
Linux Linux	646cd236c55e2cb5f146fc41bbe4034c4af5b2a4	Vendor (CNA)
Linux Linux	85a70ff1e572160f1eeb096ed48d09a1c9d4d89a	Vendor (CNA)
Linux Linux	c04d6a914e890ccea4a9d11233009a2ee7978bf4	Vendor (CNA)
Linux Linux	e77a3ec7ada84543e75722a1283785a6544de925	Vendor (CNA)
debian:linux	6.1.94-1 · 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.

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.
Special conditions such as timing or configuration are required.

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: High
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

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

nvd-secondary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

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

Vulnerable

1free(dev->buf);
2/* ... another thread is still running ... */
3process(dev->buf);

Fixed

1lock(&dev->lock);
2free(dev->buf);
3dev->buf = NULL;
4unlock(&dev->lock);

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

Fix✗ → ✓Sep 28, 2026, 10:08 PM UTC

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

References

git.kernel.org/stable/c/00e6335329f23ac6cf3105931691674e28bc598c

Show all references (12 more)

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

All records