Review reviewHigh

CVE-2025-40095

Linux

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_rndis: Refactor bind path to use __free() After an bind/unbind cycle, the rndis->notify_req is left stale. If a subsequent bind fails, the unified error label attempts to free this stale request, leading to a NULL pointer dereference when accessing ep->ops->free_request. Refactor the error handling in the bind path to use the __free() automatic cleanup mechanism.

CVSS: 7.8
EPSS: 0.14%
CISA KEV: Not listed
Published: 2025.10.30

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.14%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Linux
Affected versions: >= 45fe3b8e5342cd1ce307099459c74011d8e01986 < ef81226bb1f8b6e761cd0b53d2696e9c1bc955d1, >= 45fe3b8e5342cd1ce307099459c74011d8e01986 < 5f65c8ad8c7292ed7e3716343fcd590a51818cc3, >= 45fe3b8e5342cd1ce307099459c74011d8e01986 < 380353c3a92be7d928e6f973bd065c5b79755ac3, >= 45fe3b8e5342cd1ce307099459c74011d8e01986 < a8366263b7e5b663d7fb489d3a9ba1e2600049a6, >= 45fe3b8e5342cd1ce307099459c74011d8e01986 < 08228941436047bdcd35a612c1aec0912a29d8cd, >= 2.6.27
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Linux and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: Not available