CVE-2026-23082

medium

Description

In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error In commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak"), the URB was re-anchored before usb_submit_urb() in gs_usb_receive_bulk_callback() to prevent a leak of this URB during cleanup. However, this patch did not take into account that usb_submit_urb() could fail. The URB remains anchored and usb_kill_anchored_urbs(&parent->rx_submitted) in gs_can_close() loops infinitely since the anchor list never becomes empty. To fix the bug, unanchor the URB when an usb_submit_urb() error occurs, also print an info message.

References

https://git.kernel.org/stable/c/ce4352057fc5a986c76ece90801b9755e7c6e56c

https://git.kernel.org/stable/c/c610b550ccc0438d456dfe1df9f4f36254ccaae3

https://git.kernel.org/stable/c/c3edc14da81a8d8398682f6e4ab819f09f37c0b7

https://git.kernel.org/stable/c/aa8a8866c533a150be4763bcb27993603bd5426c

https://git.kernel.org/stable/c/79a6d1bfe1148bc921b8d7f3371a7fbce44e30f7

Details

Source: Mitre, NVD

Published: 2026-02-04

Updated: 2026-02-06

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:C

Severity: High

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00018