iio: buffer: serialize buffer teardown with mode claims
In the Linux kernel, the following vulnerability has been resolved: iio: buffer: serialize buffer teardown with mode claims Buffer-mode claims hold mlock to guarantee that the device remains in buffer mode until the claim is released. Normal buffer updates take info_exist_lock followed by mlock in iio_update_buffers(). However, iio_device_unregister() disables and deactivates all buffers without taking mlock. This can invalidate buffer state, including active_scan_mask, while a buffer-mode claim is held. Take mlock in iio_disable_all_buffers() so that unregister honors the mode-claim lifetime guarantee. The info_exist_lock -> mlock ordering matches iio_update_buffers().
CVE-2026-98669
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-2026-98669
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": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea",
"lessThan": "6a728408ff522b749c2a3c7e68f44e861fa0dbfb",
"versionType": "git"
},
{
"status": "affected",
"version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea",
"lessThan": "89f3852a28fcf7bab599280cb082baa0675536db",
"versionType": "git"
},
{
"status": "affected",
"version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea",
"lessThan": "b466db9e68b4741af85f6c017e2bb0a2f025053f",
"versionType": "git"
},
{
"status": "affected",
"version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea",
"lessThan": "e63188d77e10c0951bf67da6c295f768fd1abf4b",
"versionType": "git"
},
{
"status": "affected",
"version": "0a8565425afd8ba0e1a0ea73e21da119ee6dacea",
"lessThan": "84bb0fc46ccf6a545b8fdf57cda83770186ed8dd",
"versionType": "git"
},
{
"status": "affected",
"version": "a9c471892d75847671a246619c2148578f22bbc6",
"versionType": "git"
},
{
"status": "affected",
"version": "7bca0af538a49dacb1470f233be0676bdc09605b",
"versionType": "git"
},
{
"status": "affected",
"version": "5.15.137",
"lessThan": "5.16",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.1.60",
"lessThan": "6.2",
"versionType": "semver"
}
],
"programFiles": [
"drivers/iio/industrialio-buffer.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/iio/industrialio-buffer.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98669
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48898 · Revision 1
- Added to Heist Feed
- Publisher date