Description
In the Linux kernel, the following vulnerability has been resolved:
can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing data
The URB received in gs_usb_receive_bulk_callback() contains a struct gs_host_frame. The length of the data after the header depends on the gs_host_frame hf::flags and the active device features (e.g. time stamping).
Introduce a new function gs_usb_get_minimum_length() and check that we have at least received the required amount of data before accessing it. Only copy the data to that skb that has actually been received.
[mkl: rename gs_usb_get_minimum_length() -> +gs_usb_get_minimum_rx_length()]
Metrics
No CVSS score has been published yet.
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= d08e973a77d128b25e01a08c34d89593fdf222da, < 8376208db9283fbdfaa06c8d80735ac9954fa64a; >= d08e973a77d128b25e01a08c34d89593fdf222da, < 4ffac725154cf6a253f5e6aa0c8946232b6a0af5; >= d08e973a77d128b25e01a08c34d89593fdf222da, < ad55004a3cb5b41ef78aa6c09e7bc5a489ba652b; >= d08e973a77d128b25e01a08c34d89593fdf222da, < fb0c7c77a7ae3a2c3404b7d0173b8739a754b513; >= d08e973a77d128b25e01a08c34d89593fdf222da, < 395d988f93861101ec89d0dd9e3b876ae9392a5b |
| Linux | Linux | 3.16 |
References
- https://git.kernel.org/stable/c/395d988f93861101ec89d0dd9e3b876ae9392a5b
- https://git.kernel.org/stable/c/4ffac725154cf6a253f5e6aa0c8946232b6a0af5
- https://git.kernel.org/stable/c/8376208db9283fbdfaa06c8d80735ac9954fa64a
- https://git.kernel.org/stable/c/ad55004a3cb5b41ef78aa6c09e7bc5a489ba652b
- https://git.kernel.org/stable/c/fb0c7c77a7ae3a2c3404b7d0173b8739a754b513
Timeline
- Published
- Dec 23, 2025
- Last modified
- Oct 30, 2026
- NVD status
- Deferred