Description
In the Linux kernel, the following vulnerability has been resolved:
HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()
`i2c_hid_xfer` is used to read `recv_len + sizeof(__le16)` bytes of data into `ihid->rawbuf`.
The former can come from the userspace in the hidraw driver and is only bounded by HID_MAX_BUFFER_SIZE(16384) by default (unless we also set `max_buffer_size` field of `struct hid_ll_driver` which we do not).
The latter has size determined at runtime by the maximum size of different report types you could receive on any particular device and can be a much smaller value.
Fix this by truncating `recv_len` to `ihid->bufsize - sizeof(__le16)`.
The impact is low since access to hidraw devices requires root.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 85df713377ddc0482071c3e6b64c37bd1e48f1f1, < f9c9ad89d845f88a1509e9d672f65d234425fde9; >= 85df713377ddc0482071c3e6b64c37bd1e48f1f1, < cff3f619fd1cb40cdd89971df9001f075613d219; >= 85df713377ddc0482071c3e6b64c37bd1e48f1f1, < 786ec171788bdf9dda38789163f1b1fbb47f2d1e; >= 85df713377ddc0482071c3e6b64c37bd1e48f1f1, < 2124279f1f8c32c1646ce98e75a1a39b23b7db76; >= 85df713377ddc0482071c3e6b64c37bd1e48f1f1, < 2497ff38c530b1af0df5130ca9f5ab22c5e92f29 |
| Linux | Linux | 5.18 |
References
- https://git.kernel.org/stable/c/2124279f1f8c32c1646ce98e75a1a39b23b7db76
- https://git.kernel.org/stable/c/2497ff38c530b1af0df5130ca9f5ab22c5e92f29
- https://git.kernel.org/stable/c/786ec171788bdf9dda38789163f1b1fbb47f2d1e
- https://git.kernel.org/stable/c/cff3f619fd1cb40cdd89971df9001f075613d219
- https://git.kernel.org/stable/c/f9c9ad89d845f88a1509e9d672f65d234425fde9
Timeline
- Published
- Feb 14, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Deferred