HID: bpf: prevent buffer overflow in hid_hw_request
In the Linux kernel, the following vulnerability has been resolved: HID: bpf: prevent buffer overflow in hid_hw_request right now the returned value is considered to be always valid. However, when playing with HID-BPF, the return value can be arbitrary big, because it's the return value of dispatch_hid_bpf_raw_requests(), which calls the struct_ops and we have no guarantees that the value makes sense.
CVE-2026-31401
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-2026-31401
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": "8bd0488b5ea58655ad6fdcbe0408ef49b16882b1",
"lessThan": "d6efaa50af62fb0790dd1fd4e7e5506b46312510",
"versionType": "git"
},
{
"status": "affected",
"version": "8bd0488b5ea58655ad6fdcbe0408ef49b16882b1",
"lessThan": "73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1",
"versionType": "git"
},
{
"status": "affected",
"version": "8bd0488b5ea58655ad6fdcbe0408ef49b16882b1",
"lessThan": "eb57dae20fdf6f3069cdc07821fa3bb46de381d7",
"versionType": "git"
},
{
"status": "affected",
"version": "8bd0488b5ea58655ad6fdcbe0408ef49b16882b1",
"lessThan": "2b658c1c442ec1cd9eec5ead98d68662c40fe645",
"versionType": "git"
}
],
"programFiles": [
"drivers/hid/bpf/hid_bpf_dispatch.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.11"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.11",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.78",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.20",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.10",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/hid/bpf/hid_bpf_dispatch.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-31401
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #39866 · Revision 1
- Added to Heist Feed
- Publisher date