CVE-2025-38535
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
phy: tegra: xusb: Fix unbalanced regulator disable in UTMI PHY mode
In the Linux kernel, the following vulnerability has been resolved: phy: tegra: xusb: Fix unbalanced regulator disable in UTMI PHY mode When transitioning from USB_ROLE_DEVICE to USB_ROLE_NONE, the code assumed that the regulator should be disabled. However, if the regulator is marked as always-on, regulator_is_enabled() continues to return true, leading to an incorrect attempt to disable a regulator which is not enabled. This can result in warnings such as: [ 250.155624] WARNING: CPU: 1 PID: 7326 at drivers/regulator/core.c:3004 _regulator_disable+0xe4/0x1a0 [ 250.155652] unbalanced disables for VIN_SYS_5V0 To fix this, we move the regulator control logic into tegra186_xusb_padctl_id_override() function since it's directly related to the ID override state. The regulator is now only disabled when the role transitions from USB_ROLE_HOST to USB_ROLE_NONE, by checking the VBUS_ID register. This ensures that regulator enable/disable operations are properly balanced and only occur when actually transitioning to/from host mode.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 | affected | git | ceb645ac6ce052609ee5c8f819a80e8881789b04 | Unavailable | None listed |
| 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 | affected | git | cdcb0ffd6448f6be898956913a42bd08e59fb2ae | Unavailable | None listed |
| 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 | affected | git | 1bb85b5c2bd43b687c3d54eb6328917f90dd38fc | Unavailable | None listed |
| 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 | affected | git | 5367cdeb75cb6c687ca468450bceb2602ab239d8 | Unavailable | None listed |
| 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 | affected | git | ec7f98ff05f0649af0adeb4808c7ba23d6111ef9 | Unavailable | None listed |
| 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 | affected | git | eaa420339658615d26c1cc95cd6cf720b9aebfca | Unavailable | None listed |
| 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371 | affected | git | cefc1caee9dd06c69e2d807edc5949b329f52b22 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.7 | Unavailable | None listed |
| 5.10.241 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.190 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.147 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.100 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.40 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.15.8 | unaffected | semver | Unavailable | 6.15.* | None listed |
| 6.16 | unaffected | original_commit_for_fix | Unavailable | * | None listed |