CVE-2026-72352
HID: bpf: Fix hid_bpf_get_data() range check
- State
- Published
- Severity
- 7.8 High
- Published
- Aug 15, 2026
- Updated
- Oct 21, 2026
- Reserved
- Aug 9, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
HID: bpf: Fix hid_bpf_get_data() range check
hid_bpf_get_data() returns a pointer into the HID-BPF context data when the caller-provided offset and size fit inside ctx->allocated_size.
The current check adds rdwr_buf_size and offset before comparing the result against ctx->allocated_size. Since both values are unsigned, a very large size can wrap the sum below ctx->allocated_size and make the helper return a pointer even though the requested range is not contained in the backing buffer.
Use check_add_overflow() to reject wrapped range ends before comparing the requested range end against ctx->allocated_size.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
- https://git.kernel.org/stable/c/f72176bde0cc0e709e41ab170c71e8f229232af6
- https://git.kernel.org/stable/c/ca373549140dfb386aa2de38364b58441b1f4885
- https://git.kernel.org/stable/c/61a959b82f1aecd6d2d35c208013dd077cac9d10
- https://git.kernel.org/stable/c/f81bc5a709dcbaf2a3bbef4ca7167f93900cc39f
- https://git.kernel.org/stable/c/2d044049421dd48212b28646a850749d4a2d57fa
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