CVE-2026-23178

HIGH

Linux Kernel 5.18.0-6.1.163 6.2.0-6.6.124 6.7.0-6.12.70 6.13.0-6.18.10 - Buffer Overflow in i2c-hid Report Handling

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 7.8
EPSS 0.0002
EPSS Percentile 4.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (16)
linux/Kernel 5.18.0 - 6.1.163linux
linux/Kernel 6.13.0 - 6.18.10linux
linux/Kernel 6.2.0 - 6.6.124linux
linux/Kernel 6.7.0 - 6.12.70linux
Linux/Linux < 5.18
Linux/Linux 5.18
Linux/Linux 6.1.163 - 6.1.*
Linux/Linux 6.12.70 - 6.12.*
Linux/Linux 6.18.10 - 6.18.*
Linux/Linux 6.19
... and 6 more
Published Feb 14, 2026
Tracked Since Feb 18, 2026