What’s Vulnerable › Vulnerabilities

CVE-2026-23082: can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-04 · updated 2026-06-17
• Weakness: CWE-835

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.

Affected products

• Linux kernel: 6.12.67, 6.18.7, 6.19-rc6

References

• 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
• https://git.kernel.org/stable/c/da01de754e455e2598a7f1ce4ff2078c4f0ecde1

Get alerted when CVE-2026-23082 or the next vulnerability affects your stack