CVE-2026-64454
usb: dwc3: run gadget disconnect from sleepable suspend context
Description
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.
INFO
Published Date :
July 25, 2026, 10:17 a.m.
Last Modified :
July 25, 2026, 10:17 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-64454
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Release dwc->lock before calling gadget driver disconnect.
- Snapshot and run callback after spin_unlock_irqrestore.
- Update dwc3 suspend logic for safe callback execution.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-64454.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-64454 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-64454
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-64454 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-64454 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 25, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '20351ddb1f41cfb3ae20e105425ef43a28393d76', 'lessThan': 'b399be2958456efe1b64b19c55a54a24e9035769', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad43004fd5326bec4466ecc8a07fe0e570b553ca', 'lessThan': '48958478cb8dbc429a5b19f36e866b63d6297d1d', 'versionType': 'git'}, {'status': 'affected', 'version': 'c8540870af4ce6ddeb27a7bb5498b75fb29b643c', 'lessThan': '5e5798880eb1533a7de6fb68eb14b2d8202ebf76', 'versionType': 'git'}, {'status': 'affected', 'version': 'c8540870af4ce6ddeb27a7bb5498b75fb29b643c', 'lessThan': 'e0e4f15d4225fb7156cc0e3c21eb8953114f9b89', 'versionType': 'git'}, {'status': 'affected', 'version': 'c8540870af4ce6ddeb27a7bb5498b75fb29b643c', 'lessThan': 'c4e232bd07fe2b69a6e5c380db41dd36b95e0524', 'versionType': 'git'}, {'status': 'affected', 'version': 'c8540870af4ce6ddeb27a7bb5498b75fb29b643c', 'lessThan': '642e04f5c292d04070ae6e4374fbf14cc40a2465', 'versionType': 'git'}, {'status': 'affected', 'version': 'c8540870af4ce6ddeb27a7bb5498b75fb29b643c', 'lessThan': '010382937fb69892b3469ac4d30af072262f59e8', 'versionType': 'git'}, {'status': 'affected', 'version': '06684c72b6b153dc434bb6ccebbb49f4cd812b5e', 'versionType': 'git'}, {'status': 'affected', 'version': '5.15.128', 'lessThan': '5.15.212', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.1.30', 'lessThan': '6.1.178', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.3.4', 'lessThan': '6.4', 'versionType': 'semver'}], 'programFiles': ['drivers/usb/dwc3/gadget.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.4'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.4', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc3', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/usb/dwc3/gadget.c'], 'defaultStatus': 'affected'}] Added Description 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. Added Reference https://git.kernel.org/stable/c/010382937fb69892b3469ac4d30af072262f59e8 Added Reference https://git.kernel.org/stable/c/48958478cb8dbc429a5b19f36e866b63d6297d1d Added Reference https://git.kernel.org/stable/c/5e5798880eb1533a7de6fb68eb14b2d8202ebf76 Added Reference https://git.kernel.org/stable/c/642e04f5c292d04070ae6e4374fbf14cc40a2465 Added Reference https://git.kernel.org/stable/c/b399be2958456efe1b64b19c55a54a24e9035769 Added Reference https://git.kernel.org/stable/c/c4e232bd07fe2b69a6e5c380db41dd36b95e0524 Added Reference https://git.kernel.org/stable/c/e0e4f15d4225fb7156cc0e3c21eb8953114f9b89