HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()
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.
CVE-2026-23178
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-23178
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "85df713377ddc0482071c3e6b64c37bd1e48f1f1",
"lessThan": "f9c9ad89d845f88a1509e9d672f65d234425fde9",
"versionType": "git"
},
{
"status": "affected",
"version": "85df713377ddc0482071c3e6b64c37bd1e48f1f1",
"lessThan": "cff3f619fd1cb40cdd89971df9001f075613d219",
"versionType": "git"
},
{
"status": "affected",
"version": "85df713377ddc0482071c3e6b64c37bd1e48f1f1",
"lessThan": "786ec171788bdf9dda38789163f1b1fbb47f2d1e",
"versionType": "git"
},
{
"status": "affected",
"version": "85df713377ddc0482071c3e6b64c37bd1e48f1f1",
"lessThan": "2124279f1f8c32c1646ce98e75a1a39b23b7db76",
"versionType": "git"
},
{
"status": "affected",
"version": "85df713377ddc0482071c3e6b64c37bd1e48f1f1",
"lessThan": "2497ff38c530b1af0df5130ca9f5ab22c5e92f29",
"versionType": "git"
}
],
"programFiles": [
"drivers/hid/i2c-hid/i2c-hid-core.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.163",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.124",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.70",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.10",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/hid/i2c-hid/i2c-hid-core.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-23178
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #39775 · Revision 1
- Added to Heist Feed
- Publisher date