CVE-2026-31757

MEDIUM

usb: misc: usbio: Fix URB memory leak on submit failure

Title source: cna

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.

References (3)

Core 3

Core References

https://git.kernel.org/stable/c/65ff09f48b0e72e4049096a989723406aabcf091

https://git.kernel.org/stable/c/1762dc43b983d321180582afba4a0c5185fae04c

https://git.kernel.org/stable/c/33cfe0709b6bf1a7f1a16d5e8d65d003a71b6a21

Scores

CVSS v3 5.5

EPSS 0.0001

EPSS Percentile 2.2%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-401

Status published

Products (10)

Linux/Linux < 6.18

Linux/Linux 121a0f839dbb397af5fabb701cea3e9983223e50 - 1762dc43b983d321180582afba4a0c5185fae04c

Linux/Linux 121a0f839dbb397af5fabb701cea3e9983223e50 - 33cfe0709b6bf1a7f1a16d5e8d65d003a71b6a21

Linux/Linux 121a0f839dbb397af5fabb701cea3e9983223e50 - 65ff09f48b0e72e4049096a989723406aabcf091

Linux/Linux 6.18

Linux/Linux 6.18.22 - 6.18.*

Linux/Linux 6.19.12 - 6.19.*

Linux/Linux 7.0

linux/linux_kernel 7.0 rc1 (6 CPE variants)

linux/linux_kernel 6.18 - 6.18.22

Published May 01, 2026

Tracked Since May 01, 2026