EUVD-2026-18784
GHSA-whg2-hqg5-6ph3
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3Description
In the Linux kernel, the following vulnerability has been resolved: HID: bpf: prevent buffer overflow in hid_hw_request right now the returned value is considered to be always valid. However, when playing with HID-BPF, the return value can be arbitrary big, because it's the return value of dispatch_hid_bpf_raw_requests(), which calls the struct_ops and we have no guarantees that the value makes sense.
Analysis
Buffer overflow in Linux kernel HID-BPF subsystem allows arbitrary return values from dispatch_hid_bpf_raw_requests() to overflow the hid_hw_request buffer without validation. The vulnerability affects all Linux kernel versions with HID-BPF support; attackers with the ability to load or influence BPF programs targeting HID devices can trigger memory corruption. …
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