CVE-2026-23347 Details
Description
In the Linux kernel, the following vulnerability has been resolved: can: usb: f81604: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usb_kill_anchored_urbs() is called. This logic is correctly done elsewhere in the driver, except in the read bulk callback so do that here also.
A vulnerability exists in the Linux kernel USB F81604 driver related to improper handling of USB Request Blocks (URBs) in the read bulk callback. When a URB using the anchor pattern is submitted, it must be anchored before submission to prevent potential leakage if 'usb_kill_anchored_urbs()' is called. This issue arises because the read bulk callback does not correctly anchor the URB before submission, a step that is properly handled in other parts of the driver. The vulnerability could lead to unintended behavior or resource management issues by allowing URBs to be prematurely terminated without proper anchoring.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been addressed. The specific commit that resolves this issue is available in the Linux kernel stable tree.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/54ee74307165b348b2fddcd7942eb48fb4ee1237 | kernel.org | Patch |
| https://git.kernel.org/stable/c/7724645c4792914cd07f36718816c5369cc57970 | kernel.org | Patch |
| https://git.kernel.org/stable/c/952caa5da10bed22be09612433964f6877ba0dde | kernel.org | Patch |
| https://git.kernel.org/stable/c/c001214e12202338425d6dda5d2a1919d674282d | kernel.org | Patch |
| https://git.kernel.org/stable/c/f6d80b104f904a6da922907394eec66d3e2ffc57 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.5.1, < 6.6.130 >= 6.7, < 6.12.77 >= 6.13, < 6.18.17 >= 6.19, < 6.19.7 6.5 - 7.0 rc1 7.0 rc2 7.0 rc3 7.0 rc4 7.0 rc5 7.0 rc6 7.0 rc7 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Apr 24, 2026 | Initial Analysis | [email protected] |
| Mar 25, 2026 | New CVE Received | kernel.org |