CVE-2026-23082
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
04/02/2026
Last modified:
06/02/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error<br />
<br />
In commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix<br />
URB memory leak"), the URB was re-anchored before usb_submit_urb() in<br />
gs_usb_receive_bulk_callback() to prevent a leak of this URB during<br />
cleanup.<br />
<br />
However, this patch did not take into account that usb_submit_urb() could<br />
fail. The URB remains anchored and<br />
usb_kill_anchored_urbs(&parent->rx_submitted) in gs_can_close() loops<br />
infinitely since the anchor list never becomes empty.<br />
<br />
To fix the bug, unanchor the URB when an usb_submit_urb() error occurs,<br />
also print an info message.
Impact
References to Advisories, Solutions, and Tools
- https://git.kernel.org/stable/c/79a6d1bfe1148bc921b8d7f3371a7fbce44e30f7
- https://git.kernel.org/stable/c/aa8a8866c533a150be4763bcb27993603bd5426c
- https://git.kernel.org/stable/c/c3edc14da81a8d8398682f6e4ab819f09f37c0b7
- https://git.kernel.org/stable/c/c610b550ccc0438d456dfe1df9f4f36254ccaae3
- https://git.kernel.org/stable/c/ce4352057fc5a986c76ece90801b9755e7c6e56c



