usb: gadget: core: flush gadget workqueue after device removal
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: core: flush gadget workqueue after device removal device_del() can lead to new work being scheduled in gadget->work workqueue. This is observed, for example, with the dwc3 driver with the following call stack: device_del() gadget_unbind_driver() usb_gadget_disconnect_locked() dwc3_gadget_pullup() dwc3_gadget_soft_disconnect() usb_gadget_set_state() schedule_work(&gadget->work) Move flush_work() after device_del() to ensure the workqueue is cleaned up.
CVE-2025-21838
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2025-21838
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15",
"lessThan": "e3bc1a9a67ce33a2e761e6e7b7c2afc6cb9b7266",
"versionType": "git"
},
{
"status": "affected",
"version": "5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15",
"lessThan": "859cb45aefa6de823b2fa7f229fe6d9562c9f3b7",
"versionType": "git"
},
{
"status": "affected",
"version": "5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15",
"lessThan": "f894448f3904d7ad66fecef8f01fe0172629e091",
"versionType": "git"
},
{
"status": "affected",
"version": "5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15",
"lessThan": "97695b5a1b5467a4f91194db12160f56da445dfe",
"versionType": "git"
},
{
"status": "affected",
"version": "5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15",
"lessThan": "399a45e5237ca14037120b1b895bd38a3b4492ea",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/gadget/udc/core.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.130",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.80",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.16",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.4",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/gadget/udc/core.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-21838
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26954 · Revision 1
- Added to Heist Feed
- Publisher date