iio: trigger: cancel reenable_work before freeing trigger
In the Linux kernel, the following vulnerability has been resolved: iio: trigger: cancel reenable_work before freeing trigger iio_trigger_notify_done_atomic() defers ->reenable() into trig->reenable_work on the system workqueue, and the worker dereferences the owning trigger through container_of(). Nothing cancels this work before iio_trig_release() frees the trigger, so a worker armed by the last in-flight IRQ can outlive the free and touch freed memory. Cancel it at the top of iio_trig_release(), which every free path reaches through the device core's final put_device(). Found by an in-house static analysis tool.
CVE-2026-98656
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-2026-98656
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": "9020ef659885f2622cfb386cc229b6d618362895",
"lessThan": "ac5d26a46c90ff61fd574eff4e8f0d71c905828a",
"versionType": "git"
},
{
"status": "affected",
"version": "9020ef659885f2622cfb386cc229b6d618362895",
"lessThan": "cf513df1a2c75566cdc802d9da47f62e8d6cfd18",
"versionType": "git"
},
{
"status": "affected",
"version": "9020ef659885f2622cfb386cc229b6d618362895",
"lessThan": "e64703280ce7a23a43c27efebeb7da457c88bf5c",
"versionType": "git"
},
{
"status": "affected",
"version": "9020ef659885f2622cfb386cc229b6d618362895",
"lessThan": "882d0011c59ff8ac15188ec9ce071399ecfa10ad",
"versionType": "git"
},
{
"status": "affected",
"version": "9020ef659885f2622cfb386cc229b6d618362895",
"lessThan": "2a57b9246cecd5dd797a42eb310d6c8816f26d9e",
"versionType": "git"
},
{
"status": "affected",
"version": "a18aeac73c0f692ba40964f5f56e182312ae843b",
"versionType": "git"
},
{
"status": "affected",
"version": "2c5c948451d57596640b20887b06b523d376eb24",
"versionType": "git"
},
{
"status": "affected",
"version": "5.15.17",
"lessThan": "5.16",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.16.3",
"lessThan": "5.17",
"versionType": "semver"
}
],
"programFiles": [
"drivers/iio/industrialio-trigger.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.17"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.17",
"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-trigger.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98656
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48890 · Revision 1
- Added to Heist Feed
- Publisher date