CVE-2026-31757 Details
Description
In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: Fix URB memory leak on submit failure When usb_submit_urb() fails in usbio_probe(), the previously allocated URB is never freed, causing a memory leak. Fix this by jumping to err_free_urb label to properly release the URB on the error path.
A memory leak vulnerability has been identified in the Linux kernel's USBIO bridge driver. When the function usb_submit_urb() fails during the probing of a USBIO device, the allocated USB Request Block (URB) is not freed, leading to a memory leak. This issue affects the stable versions of the Linux kernel.
Users can upgrade to the latest stable version of the Linux kernel, where this vulnerability has been addressed. Instructions for downloading the latest kernel version can be found on the official Linux kernel website.
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/1762dc43b983d321180582afba4a0c5185fae04c | kernel.org | Patch |
| https://git.kernel.org/stable/c/33cfe0709b6bf1a7f1a16d5e8d65d003a71b6a21 | kernel.org | Patch |
| https://git.kernel.org/stable/c/65ff09f48b0e72e4049096a989723406aabcf091 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.18, < 6.18.22 >= 6.19, < 6.19.12 7.0 rc1 7.0 rc2 7.0 rc3 7.0 rc4 7.0 rc5 7.0 rc6 |
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 |
| May 8, 2026 | Initial Analysis | [email protected] |
| May 1, 2026 | New CVE Received | kernel.org |