CVE-2025-68307
Published Dec 16, 2025
Modified Apr 15, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_xmit_callback(): fix handling of failed transmitted URBs The driver lacks the cleanup of failed transfers of URBs. This reduces the number of available URBs per error by 1. This leads to reduced performance and ultimately to a complete stop of the transmission. If the sending of a bulk URB fails do proper cleanup: - increase netdev stats - mark the echo_sbk as free - free the driver's context and do accounting - wake the send queue
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References
Other References
https://git.kernel.org/stable/c/1a588c40a422a3663a52f1c5535e8fb6b044167d
https://git.kernel.org/stable/c/4a82072e451eacf24fc66a445e906f5095d215db
https://git.kernel.org/stable/c/516a0cd1c03fa266bb67dd87940a209fd4e53ce7
https://git.kernel.org/stable/c/9c8eb33b7008178b6ce88aa7593d12063ce60ca3
https://git.kernel.org/stable/c/f7a5560675bd85efaf16ab01a43053670ff2b000
Frequently Asked Questions
What is CVE-2025-68307? +
In the Linux kernel, the following vulnerability has been resolved:
can: gs_usb: gs_usb_xmit_callback(): fix handling of failed transmitted URBs
The driver lacks the cleanup of failed transfers of URBs. This reduces the
number of available URBs per error by 1. This leads to reduced performance
and ultimately to a complete stop of the transmission.
If the sending of a bulk URB fails do proper cleanup:
- increase netdev stats
- mark the echo_sbk as free
- free the driver's context and do accounting
- wake the send queue
How do I check if I'm vulnerable to CVE-2025-68307? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.