HID: haptic: don't write an uninitialized value to unhandled usages
In the Linux kernel, the following vulnerability has been resolved: HID: haptic: don't write an uninitialized value to unhandled usages fill_effect_buf() initializes value only for the four haptic usages handled by its switch, but writes it to field->value[] for every usage. An unhandled usage can therefore receive either an uninitialized value or one left over from the previous usage. hid_output_report() then serializes that value into the effect's report buffer. Skip unhandled usages instead. This also matches switch_mode(), which only updates fields it recognizes. Found with Clang's -Wconditional-uninitialized.
CVE-2026-90197
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-2026-90197
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": "344ff358495706abc7aac1e0c59a5bb16b350307",
"lessThan": "324cc98b71f0d3dee7367ef3c669fd80747e71b6",
"versionType": "git"
},
{
"status": "affected",
"version": "344ff358495706abc7aac1e0c59a5bb16b350307",
"lessThan": "2d92c250815cba6bffd64f0125fac7afe4fa6ce0",
"versionType": "git"
},
{
"status": "affected",
"version": "344ff358495706abc7aac1e0c59a5bb16b350307",
"lessThan": "3efb7f6491526f5012f9ec94769e9ed832feeef8",
"versionType": "git"
}
],
"programFiles": [
"drivers/hid/hid-haptic.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/hid/hid-haptic.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90197
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36574 · Revision 1
- Added to Heist Feed
- Publisher date