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NVD / CVE Program· CNA Linux

CVE-2026-64454: usb: dwc3: run gadget disconnect from sleepable suspend context

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.18% (FIRST EPSS).
  • Fixed version: Linux Linux 010382937fb69892b3469ac4d30af072262f59e8, 48958478cb8dbc429a5b19f36e866b63d6297d1d, 5.15.212.

Low priority for now. Upgrade to Linux Linux 010382937fb69892b3469ac4d30af072262f59e8, 48958478cb8dbc429a5b19f36e866b63d6297d1d, 5.15.212 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: dwc3: run gadget disconnect from sleepable suspend context dwc3_gadget_suspend() takes dwc->lock with IRQs disabled and then calls dwc3_disconnect_gadget(). For async callbacks that helper only uses plain spin_unlock()/spin_lock(), so the gadget ->disconnect() callback still runs with IRQs disabled and any sleepable callback trips Lockdep. This issue was found by our static analysis tool and then manually reviewed against the current tree. The grounded PoC kept the dwc3_gadget_suspend() -> dwc3_disconnect_gadget() -> gadget_driver->disconnect() chain, and Lockdep reported: BUG: sleeping function called from invalid context gadget_disconnect+0x21/0x39 [vuln_msv] dwc3_gadget_suspend.constprop.0+0x2b/0x42 [vuln_msv] Keep the disconnect callback selection in one common helper, but add a sleepable suspend-side wrapper which snapshots the callback under dwc->lock and then runs it after spin_unlock_irqrestore(). The regular event path still uses the existing spin_unlock()/spin_lock() window.

—No exploit Fix available
Published
Jul 25, 2026
Updated
Nov 6, 2026
EPSS
0.1% · 7th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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  • 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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  • when exploit code appears or is weaponized
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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.

—

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

    • 06684c72b6b153dc434bb6ccebbb49f4cd812b5e, 6.4affected
    • 20351ddb1f41cfb3ae20e105425ef43a28393d76 and later · before b399be2958456efe1b64b19c55a54a24e9035769affected · git
    • ad43004fd5326bec4466ecc8a07fe0e570b553ca and later · before 48958478cb8dbc429a5b19f36e866b63d6297d1daffected · git
    • c8540870af4ce6ddeb27a7bb5498b75fb29b643c and later · before 5e5798880eb1533a7de6fb68eb14b2d8202ebf76affected · git
    • c8540870af4ce6ddeb27a7bb5498b75fb29b643c and later · before e0e4f15d4225fb7156cc0e3c21eb8953114f9b89affected · git
    • c8540870af4ce6ddeb27a7bb5498b75fb29b643c and later · before c4e232bd07fe2b69a6e5c380db41dd36b95e0524affected · git
    • c8540870af4ce6ddeb27a7bb5498b75fb29b643c and later · before 642e04f5c292d04070ae6e4374fbf14cc40a2465affected · git
    • c8540870af4ce6ddeb27a7bb5498b75fb29b643c and later · before 010382937fb69892b3469ac4d30af072262f59e8affected · git
    • 5.15.128 and later · before 5.15.212affected · semver
    • 6.1.30 and later · before 6.1.178affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.180-16.1.180-1
Debian:12linux-6.12before 6.12.100-1~deb12u16.12.100-1~deb12u1
Debian:13linuxbefore 6.12.96-16.12.96-1
Debian:14linuxbefore 7.1.4-17.1.4-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-63983Jul 19, 2026 · net/sched: fix packet loop on netem when duplicate is on
    0Monitor
  • ← EarlierCVE-2026-63984Jul 19, 2026 · ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress()
    39Monitor
  • Later →CVE-2026-64455Jul 25, 2026 · USB: chaoskey: Fix slab-use-after-free in chaoskey_release()
    0Monitor

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 Linux010382937fb69892b3469ac4d30af072262f59e8Vendor (CNA)
Linux Linux48958478cb8dbc429a5b19f36e866b63d6297d1dVendor (CNA)
Linux Linux5.15.212Vendor (CNA)
Linux Linux5e5798880eb1533a7de6fb68eb14b2d8202ebf76Vendor (CNA)
Linux Linux6.1.178Vendor (CNA)
Linux Linux6.4Vendor (CNA)
Linux Linux642e04f5c292d04070ae6e4374fbf14cc40a2465Vendor (CNA)
Linux Linuxb399be2958456efe1b64b19c55a54a24e9035769Vendor (CNA)
Linux Linuxc4e232bd07fe2b69a6e5c380db41dd36b95e0524Vendor (CNA)
Linux Linuxe0e4f15d4225fb7156cc0e3c21eb8953114f9b89Vendor (CNA)
debian:linux6.1.180-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.100-1~deb12u1 · 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.

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

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

Show all references (6 more)

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

All records