gpio: exar: initialize the ID before registering its cleanup
In the Linux kernel, the following vulnerability has been resolved: gpio: exar: initialize the ID before registering its cleanup devm_add_action_or_reset() invokes the cleanup action immediately when registering the action fails. gpio_exar_probe() currently stores the allocated ID in exar_gpio only after registering the action, so that failure makes exar_devm_ida_free() release ID 0. If the allocated ID is nonzero, this leaks that ID and can free ID 0 belonging to another device. Store the ID before registering the cleanup action so both the immediate failure path and normal device teardown release the correct allocation.
CVE-2026-98971
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-2026-98971
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": "5300ebb695fa0672589ab191062392f686fca75d",
"lessThan": "bf3d841ef12fcbec4458e2750956b738b043a226",
"versionType": "git"
},
{
"status": "affected",
"version": "5300ebb695fa0672589ab191062392f686fca75d",
"lessThan": "b78c114600ae3df90c083c72c290437b068577c8",
"versionType": "git"
},
{
"status": "affected",
"version": "5300ebb695fa0672589ab191062392f686fca75d",
"lessThan": "01318927a9055136c207399eeb36ce07becac179",
"versionType": "git"
},
{
"status": "affected",
"version": "5300ebb695fa0672589ab191062392f686fca75d",
"lessThan": "f7ec4dbd2a073dd53b6349be1c586fe8580dd6b2",
"versionType": "git"
},
{
"status": "affected",
"version": "5300ebb695fa0672589ab191062392f686fca75d",
"lessThan": "4d69e74034b208588636ecc177e0dd43a7696af3",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpio/gpio-exar.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.11"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.11",
"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": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.11",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpio/gpio-exar.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98971
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #52826 · Revision 1
- Added to Heist Feed
- Publisher date