Answer in brief
CVE-2026-23178 records a High severity (CVSS 7.8) vulnerability in HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=85df713377ddc0482071c3e6b64c37bd1e48f1f1 <f9c9ad89d845f88a1509e9d672f65d234425fde9 || >=85df713377ddc0482071c3e6b64c37bd1e48f1f1 <cff3f619fd1cb40cdd89971df9001f075613d219 || >=85df713377ddc0482071c3e6b64c37bd1e48f1f1 <786ec171788bdf9dda38789163f1b1fbb47f2d1e || >=85df713377ddc0482071c3e6b64c37bd1e48f1f1 <2124279f1f8c32c1646ce98e75a1a39b23b7db76 || >=85df713377ddc0482071c3e6b64c37bd1e48f1f1 <2497ff38c530b1af0df5130ca9f5ab22c5e92f29 | f9c9ad89d845f88a1509e9d672f65d234425fde9, cff3f619fd1cb40cdd89971df9001f075613d219, 786ec171788bdf9dda38789163f1b1fbb47f2d1e, 2124279f1f8c32c1646ce98e75a1a39b23b7db76, 2497ff38c530b1af0df5130ca9f5ab22c5e92f29 |
| Linux/Linuxgeneric | 5.18 | Not reported |
Published upstream
Feb 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 16, 2026
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.
Quoted source text, attributed separately from HOL analysis.