CVE-2026-31401
Full vulnerability record from the local CVENow database.
Description
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.
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-04-03 16:16:39.140000
Last modified
2026-10-19 19:17:51.193000
View original CVE JSON
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"published": "2026-04-03T16:16:39.140",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: bpf: prevent buffer overflow in hid_hw_request\n\nright now the returned value is considered to be always valid. However,\nwhen playing with HID-BPF, the return value can be arbitrary big,\nbecause it's the return value of dispatch_hid_bpf_raw_requests(), which\ncalls the struct_ops and we have no guarantees that the value makes\nsense."
},
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"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nHID: bpf: prevenir desbordamiento de búfer en hid_hw_request\n\nActualmente, el valor devuelto se considera siempre válido. Sin embargo, al interactuar con HID-BPF, el valor de retorno puede ser arbitrariamente grande, porque es el valor de retorno de dispatch_hid_bpf_raw_requests(), que llama a las struct_ops y no tenemos garantías de que el valor tenga sentido."
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