phy: renesas: phy-rcar-gen3-usb2: Fix devm action registration for disabled VBUS regulator
In the Linux kernel, the following vulnerability has been resolved: phy: renesas: phy-rcar-gen3-usb2: Fix devm action registration for disabled VBUS regulator devm_regulator_get_exclusive() initialises the regulator with enable_count = 1, requiring the consumer to disable it before release. The devm disable action was previously only registered when the caller explicitly requested enable, so when the regulator was left in its initial enabled state without an explicit enable call, the cleanup path skipped decrementing enable_count, triggering a WARN_ON during regulator release on device removal. Fix this by always registering the devm disable action based on the actual enabled state via regulator_is_enabled(), regardless of whether the caller requested an explicit enable. This covers both the explicitly enabled case and the initial state set by devm_regulator_get_exclusive().
CVE-2026-93276
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-2026-93276
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": "24843404efe47eab1ee88d7475a0be0f2f6fd9db",
"lessThan": "bf7fefbc26e292c08cfe7b6496b879109ef1475a",
"versionType": "git"
},
{
"status": "affected",
"version": "24843404efe47eab1ee88d7475a0be0f2f6fd9db",
"lessThan": "935f6e837a83b86b073a7601f699dc2c00e01322",
"versionType": "git"
},
{
"status": "affected",
"version": "24843404efe47eab1ee88d7475a0be0f2f6fd9db",
"lessThan": "49c9b71b45081e5e5eeb507a2d6edb80d332dc59",
"versionType": "git"
}
],
"programFiles": [
"drivers/phy/renesas/phy-rcar-gen3-usb2.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.11"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.11",
"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/phy/renesas/phy-rcar-gen3-usb2.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-93276
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #37969 · Revision 1
- Added to Heist Feed
- Publisher date