power: supply: bq25890: Fix power_supply reference leak
In the Linux kernel, the following vulnerability has been resolved: power: supply: bq25890: Fix power_supply reference leak bq25890_fw_probe() acquires a reference to a secondary charger using power_supply_get_by_name(), but the reference is not released on later probe failures or on driver detach. In particular, failures after bq25890_fw_probe() returns successfully, such as a failure in bq25890_hw_init(), also leak the reference. Register a device-managed cleanup action immediately after acquiring the secondary charger. This releases the reference on all subsequent probe failures and on driver detach. Found by code review.
CVE-2026-89473
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-2026-89473
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": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
"lessThan": "976c10d883a02968f3f58be0cee499d1fd2ba68a",
"versionType": "git"
},
{
"status": "affected",
"version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
"lessThan": "81b558afda9321c1a70971a39071d156f3e26950",
"versionType": "git"
},
{
"status": "affected",
"version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
"lessThan": "238320ad029a3eedabb86286a28cab55bca629b9",
"versionType": "git"
},
{
"status": "affected",
"version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
"lessThan": "58f1025eca92734eadc063715b98f62538286468",
"versionType": "git"
},
{
"status": "affected",
"version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
"lessThan": "863c32a83e4235eb0cbf6106f2b124e645302156",
"versionType": "git"
}
],
"programFiles": [
"drivers/power/supply/bq25890_charger.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.3"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.109",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.50",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/power/supply/bq25890_charger.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89473
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #35000 · Revision 1
- Added to Heist Feed
- Publisher date