CVEvulnerability
CVE-2026-23178
7.8 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-02-14
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-122
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.
Related
Weakness · CWE (1)
- CWE-122 Heap-based Buffer Overflow weakness
References
- https://git.kernel.org/stable/c/2124279f1f8c32c1646ce98e75a1a39b23b7db76 git.kernel.org
- https://git.kernel.org/stable/c/2497ff38c530b1af0df5130ca9f5ab22c5e92f29 git.kernel.org
- https://git.kernel.org/stable/c/786ec171788bdf9dda38789163f1b1fbb47f2d1e git.kernel.org
- https://git.kernel.org/stable/c/cff3f619fd1cb40cdd89971df9001f075613d219 git.kernel.org
- https://git.kernel.org/stable/c/f9c9ad89d845f88a1509e9d672f65d234425fde9 git.kernel.org