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NVD / CVE Program· CNA Linux

CVE-2024-26825: nfc: nci: free rx_data_reassembly skb on NCI device cleanup

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: 0.23% (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 16d3f507b0fa70453dc54550df093d6e9ac630c1, 2f6d16f0520d6505241629ee2f5c131b547d5f9d, 471c9ede8061357b43a116fa692e70d91941ac23.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 16d3f507b0fa70453dc54550df093d6e9ac630c1, 2f6d16f0520d6505241629ee2f5c131b547d5f9d, 471c9ede8061357b43a116fa692e70d91941ac23 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: nfc: nci: free rx_data_reassembly skb on NCI device cleanup rx_data_reassembly skb is stored during NCI data exchange for processing fragmented packets. It is dropped only when the last fragment is processed or when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received. However, the NCI device may be deallocated before that which leads to skb leak. As by design the rx_data_reassembly skb is bound to the NCI device and nothing prevents the device to be freed before the skb is processed in some way and cleaned, free it on the NCI device cleanup. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Apr 17, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 14th 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 · 0.2%

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.

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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
debiandebian linux

Affected versions

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

  • debian debian linux10.0
  • linux linux kernel4.20 and later · before 5.4.269
  • linux linux kernel5.5 and later · before 5.10.210
  • linux linux kernel5.11 and later · before 5.15.149
  • linux linux kernel3.2 and later · before 4.19.307
  • linux linux kernel6.2 and later · before 6.6.18
  • linux linux kernel6.7 and later · before 6.7.6
  • linux linux kernel5.16 and later · before 6.1.79
  • 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

    • 3.2affected
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before 7e9a8498658b398bf11b8e388005fa54e40aed81affected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before 71349abe3aba7fedcab5b3fcd7aa82371fb5ccbfaffected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before 2f6d16f0520d6505241629ee2f5c131b547d5f9daffected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before 471c9ede8061357b43a116fa692e70d91941ac23affected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before 5c0c5ffaed73cbae6c317374dc32ba6cacc60895affected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before 16d3f507b0fa70453dc54550df093d6e9ac630c1affected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before a3d90fb5c23f29ba59c04005ae76c5228cef2be9affected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before bfb007aebe6bff451f7f3a4be19f4f286d0d5d9caffected · git
    • before 3.2not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.82-16.1.82-1
Debian:13linuxbefore 6.7.7-16.7.7-1

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-2024-26823Apr 17, 2024 · irqchip/gic-v3-its: Restore quirk probing for ACPI-based systems
    22Monitor
  • ← EarlierCVE-2024-26824Apr 17, 2024 · crypto: algif_hash - Remove bogus SGL free on zero-length error path
    22Monitor
  • Later →CVE-2024-26826Apr 17, 2024 · mptcp: fix data re-injection from stale subflow
    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 / packageFixed versionSource
Linux Linux16d3f507b0fa70453dc54550df093d6e9ac630c1Vendor (CNA)
Linux Linux2f6d16f0520d6505241629ee2f5c131b547d5f9dVendor (CNA)
Linux Linux471c9ede8061357b43a116fa692e70d91941ac23Vendor (CNA)
Linux Linux5c0c5ffaed73cbae6c317374dc32ba6cacc60895Vendor (CNA)
Linux Linux71349abe3aba7fedcab5b3fcd7aa82371fb5ccbfVendor (CNA)
Linux Linux7e9a8498658b398bf11b8e388005fa54e40aed81Vendor (CNA)
Linux Linuxa3d90fb5c23f29ba59c04005ae76c5228cef2be9Vendor (CNA)
Linux Linuxbfb007aebe6bff451f7f3a4be19f4f286d0d5d9cVendor (CNA)
debian:linux6.1.82-1 · Debian:12Package 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-2025-37908398 days apartmm, slab: clean up slab->obj_exts always
    31Monitor
  • CVE-2022-3238520 days apartA double-free flaw was found in the Linux kernel’s NTFS3 subsystem in how a user triggers remount and umount simultaneously.
    31Monitor
  • CVE-2021-4711033 days apartx86/kvm: Disable kvmclock on all CPUs on shutdown
    28Monitor
  • CVE-2024-47693187 days apartIB/core: Fix ib_cache_setup_one error flow cleanup
    26Monitor
  • CVE-2024-268320 days apartmm: zswap: fix missing folio cleanup in writeback race path
    22Monitor
  • CVE-2024-268410 days apartLoongArch: Update cpu_sibling_map when disabling nonboot CPUs
    22Monitor

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.
  • 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-459 · Incomplete Cleanup

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. Fix✗ → ✓

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

References

Show all references (9 more)

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

All records