NVD / CVE Program· CNA Linux

CVE-2024-53165: sh: intc: Fix use-after-free bug in register_intc_controller()

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: 0.25% (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 3c7c806b3eafd94ae0f77305a174d63b69ec187c, 588bdec1ff8b81517dbae0ae51c9df52c0b952d3, 63e72e551942642c48456a4134975136cdcb9b3c; azl3 kernel 6.6.57.1-7 on Azure Linux 3.0 6.6.64.2-1; azl3 kernel 6.6.64.2-1 on Azure Linux 3.0 6.6.64.2-1.

Low priority for now. Upgrade to Linux Linux 3c7c806b3eafd94ae0f77305a174d63b69ec187c, 588bdec1ff8b81517dbae0ae51c9df52c0b952d3, 63e72e551942642c48456a4134975136cdcb9b3c; azl3 kernel 6.6.57.1-7 on Azure Linux 3.0 6.6.64.2-1; azl3 kernel 6.6.64.2-1 on Azure Linux 3.0 6.6.64.2-1 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: sh: intc: Fix use-after-free bug in register_intc_controller() In the error handling for this function, d is freed without ever removing it from intc_list which would lead to a use after free. To fix this, let's only add it to the list after everything has succeeded.

HighCVSS 7.8 · v3.1—No exploit Fix available

Memory safety

BDU:2025-04996

Published: Dec 27, 2024
Updated: Oct 15, 2026
EPSS: 0.2% · 17th percentile
CWE: CWE-416

Report tools

JSON

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.

CNA vs NVD score

NVD: 7.8
CNA · Linux: 7.4; 0.4 point gap

CVSS:3.1/AV:L/AC:H/PR:N/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.

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 kernel2.6.30 and later · before 4.19.325
linux linux kernel4.20 and later · before 5.4.287
linux linux kernel5.5 and later · before 5.10.231
linux linux kernel5.11 and later · before 5.15.174
linux linux kernel5.16 and later · before 6.1.120
linux linux kernel6.2 and later · before 6.6.64
linux linux kernel6.7 and later · before 6.11.11
linux linux kernel6.12 and later · before 6.12.2

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
- 2.6.30affected
- 2dcec7a988a1895540460a0bf5603bab63d5a3ed and later · before 3c7c806b3eafd94ae0f77305a174d63b69ec187caffected · git
- 2dcec7a988a1895540460a0bf5603bab63d5a3ed and later · before d8de818df12d86a1a26a8efd7b4b3b9c6dc3c5ccaffected · git
- 2dcec7a988a1895540460a0bf5603bab63d5a3ed and later · before 971b4893457788e0e123ea552f0bb126a5300e61affected · git
- 2dcec7a988a1895540460a0bf5603bab63d5a3ed and later · before c3f4f4547fb291982f5ef56c048277c4d5ccc4e4affected · git
- 2dcec7a988a1895540460a0bf5603bab63d5a3ed and later · before c43df7dae28fb9fce96ef088250c1e3c3a77c527affected · git
- 2dcec7a988a1895540460a0bf5603bab63d5a3ed and later · before b8b84dcdf3ab1d414304819f824b10efba64132caffected · git
- 2dcec7a988a1895540460a0bf5603bab63d5a3ed and later · before 6ba6e19912570b2ad68298be0be1dc779014a303affected · git
- 2dcec7a988a1895540460a0bf5603bab63d5a3ed and later · before 588bdec1ff8b81517dbae0ae51c9df52c0b952d3affected · git
- 2dcec7a988a1895540460a0bf5603bab63d5a3ed and later · before 63e72e551942642c48456a4134975136cdcb9b3caffected · 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 6.1.123-1	6.1.123-1
Debian:13	linux	before 6.12.3-1	6.12.3-1

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-2024-56675Dec 27, 2024 · bpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors
31Monitor
← EarlierCVE-2024-53164Dec 27, 2024 · net: sched: fix ordering of qlen adjustment
22Monitor
Later →CVE-2024-53166Dec 27, 2024 · block, bfq: fix bfqq uaf in bfq_limit_depth()
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	3c7c806b3eafd94ae0f77305a174d63b69ec187c	Vendor (CNA)
Linux Linux	588bdec1ff8b81517dbae0ae51c9df52c0b952d3	Vendor (CNA)
Linux Linux	63e72e551942642c48456a4134975136cdcb9b3c	Vendor (CNA)
Linux Linux	6ba6e19912570b2ad68298be0be1dc779014a303	Vendor (CNA)
Linux Linux	971b4893457788e0e123ea552f0bb126a5300e61	Vendor (CNA)
Linux Linux	b8b84dcdf3ab1d414304819f824b10efba64132c	Vendor (CNA)
Linux Linux	c3f4f4547fb291982f5ef56c048277c4d5ccc4e4	Vendor (CNA)
Linux Linux	c43df7dae28fb9fce96ef088250c1e3c3a77c527	Vendor (CNA)
Linux Linux	d8de818df12d86a1a26a8efd7b4b3b9c6dc3c5cc	Vendor (CNA)
azl3 kernel 6.6.57.1-7 on Azure Linux 3.0	6.6.64.2-1 · CBL-Mariner Releases	Microsoft (MSRC)
azl3 kernel 6.6.64.2-1 on Azure Linux 3.0	6.6.64.2-1 · CBL-Mariner Releases	Microsoft (MSRC)
debian:linux	6.1.123-1 · 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.
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-416 · Use After Free

CVSS vector

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

nvd-primary

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, 10:10 PM UTC

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

References

git.kernel.org/stable/c/3c7c806b3eafd94ae0f77305a174d63b69ec187c

Show all references (11 more)

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

All records