CVE-2026-31401
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedApr 3, 2026
First seenApr 3, 2026
Weakness typeCWE-120CWE-120
How to fix
Update
- linux linux_kernel6.12.78, 6.18.20, 6.19.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.11 ≤ v < 6.12.78, 6.13 ≤ v < 6.18.20, 6.19 ≤ v < 6.19.10, 7.0 | 6.12.78, 6.18.20, 6.19.10 |
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