CVE-2025-68342 - can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing data

CVE-2025-68342 - can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing data

https://cvefeed.io/rssfeed/latest.atom / Tue, 12/23/2025 - 19:54
CVE ID : CVE-2025-68342
Published : Dec. 23, 2025, 2:16 p.m. | 4 hours, 37 minutes ago
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()]
Severity: 0.0 | NA
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