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NVD / CVE Program· CNA Linux

CVE-2026-64242: usb: gadget: net2280: Fix double free in probe error path

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: 0.12% (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 085652fda7f38040d1a2c42d72614f418feb843f, 48f89ead20e48d447ad29fa937b43b9fa981cf28, 550fa4d071a8c8e53072900869d37ae6abf4999d.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 085652fda7f38040d1a2c42d72614f418feb843f, 48f89ead20e48d447ad29fa937b43b9fa981cf28, 550fa4d071a8c8e53072900869d37ae6abf4999d 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: usb: gadget: net2280: Fix double free in probe error path usb_initialize_gadget() installs gadget_release() as the release callback for the embedded gadget device. The struct net2280 instance is therefore released through gadget_release() when the gadget device's last reference is dropped. The probe error path calls net2280_remove(), which tears down the partially initialized device and drops the gadget reference with usb_put_gadget(). Calling kfree(dev) afterwards can free the same object again. Drop the explicit kfree() and let the gadget device release callback handle the final free. This issue was found by a static analysis tool I am developing.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Jul 24, 2026
Updated
Nov 8, 2026
EPSS
0.1% · 1th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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

Affected versions

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

  • linux linux kernel5.10 and later · before 5.10.259
  • linux linux kernel5.11 and later · before 5.15.210
  • linux linux kernel5.16 and later · before 6.1.176
  • linux linux kernel6.2 and later · before 6.6.143
  • linux linux kernel6.7 and later · before 6.12.93
  • linux linux kernel6.13 and later · before 6.18.35
  • linux linux kernel6.19 and later · before 7.0.12
  • linux linux kernel7.1

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

    • 5.10affected
    • f770fbec4165b1acfabdeadb01ad6008d2c537b5 and later · before 71b3391dc81655ff058492f8e9d013b2c6e5747baffected · git
    • f770fbec4165b1acfabdeadb01ad6008d2c537b5 and later · before 550fa4d071a8c8e53072900869d37ae6abf4999daffected · git
    • f770fbec4165b1acfabdeadb01ad6008d2c537b5 and later · before c5b9fdb1e8ddf50bc6272927edb118679f170350affected · git
    • f770fbec4165b1acfabdeadb01ad6008d2c537b5 and later · before 085652fda7f38040d1a2c42d72614f418feb843faffected · git
    • f770fbec4165b1acfabdeadb01ad6008d2c537b5 and later · before 48f89ead20e48d447ad29fa937b43b9fa981cf28affected · git
    • f770fbec4165b1acfabdeadb01ad6008d2c537b5 and later · before e6f8be12f0307145b9a6010f044925952b37de8baffected · git
    • f770fbec4165b1acfabdeadb01ad6008d2c537b5 and later · before db2b72e83a0208ae2b3b270bf91662b1c6849a9baffected · git
    • f770fbec4165b1acfabdeadb01ad6008d2c537b5 and later · before c8547c74988e0b5f4cbb1b895e2a57aae084f070affected · git
    • before 5.10not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.176-16.1.176-1
Debian:13linuxbefore 6.12.94-16.12.94-1
Debian:14linuxbefore 7.0.12-17.0.12-1

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-2026-64240Jul 24, 2026 · media: rc: igorplugusb: fix control request setup packet
    22Monitor
  • ← EarlierCVE-2026-64241Jul 24, 2026 · gpio: rockchip: teardown bugs and resource leaks
    22Monitor
  • Later →CVE-2026-64243Jul 24, 2026 · ASoC: codecs: simple-mux: Fix enum control bounds check
    28Monitor

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 Linux085652fda7f38040d1a2c42d72614f418feb843fVendor (CNA)
Linux Linux48f89ead20e48d447ad29fa937b43b9fa981cf28Vendor (CNA)
Linux Linux550fa4d071a8c8e53072900869d37ae6abf4999dVendor (CNA)
Linux Linux71b3391dc81655ff058492f8e9d013b2c6e5747bVendor (CNA)
Linux Linuxc5b9fdb1e8ddf50bc6272927edb118679f170350Vendor (CNA)
Linux Linuxc8547c74988e0b5f4cbb1b895e2a57aae084f070Vendor (CNA)
Linux Linuxdb2b72e83a0208ae2b3b270bf91662b1c6849a9bVendor (CNA)
Linux Linuxe6f8be12f0307145b9a6010f044925952b37de8bVendor (CNA)
debian:linux6.1.176-1 · 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.

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.

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-2026-643831 days apartsmb: client: fix double-free in SMB2_flush() replay
    39Monitor
  • CVE-2026-643841 days apartsmb: client: fix change notify replay double-free
    39Monitor
  • CVE-2026-643851 days apartsmb: client: fix double-free in SMB2_ioctl() replay
    39Monitor
  • CVE-2026-643861 days apartsmb: client: fix query_info() replay double-free
    39Monitor
  • CVE-2026-643871 days apartsmb: client: fix query directory replay double-free
    39Monitor
  • CVE-2026-638885 days apartscsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd()
    39Monitor

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
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-415 · Double Free

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 (7 more)

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

All records