7.8

CVE-2025-38535: debian debian_linux

CVSS: 7.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2025-38535DEBIAN-CVE-2025-38535
Published 16-08-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2025-38535 is a high (CVSS 7.8) vulnerability in debian debian_linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.4% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.17%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 49 · Related 47
DLA-4327-1DLA-4328-1OPENSUSE-SU-2026:20287-1SUSE-SU-2025:03272-1SUSE-SU-2025:03290-1SUSE-SU-2025:03301-1

Timeline

  1. 16-08-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

+0.01 pp

From 0.17% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu135 products
  • linux< 5.15.0-163.173 | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1097.104 | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.147-1 | < 6.12.41-1 | < 6.16.3-1
  • debian_linuxEOL11.0
Linux2 products
  • linux≥ 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371, < ceb645ac6ce052609ee5c8f819a80e8881789b04 | ≥ 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371, < cdcb0ffd6448f6be898956913a42bd08e59fb2ae | ≥ 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371, < 1bb85b5c2bd43b687c3d54eb6328917f90dd38fc | ≥ 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371, < 5367cdeb75cb6c687ca468450bceb2602ab239d8 | ≥ 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371, < ec7f98ff05f0649af0adeb4808c7ba23d6111ef9 | ≥ 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371, < eaa420339658615d26c1cc95cd6cf720b9aebfca | ≥ 49d46e3c7e597e8b00c6fc16e6fd7a92044f4371, < cefc1caee9dd06c69e2d807edc5949b329f52b22 | 5.7
  • linux_kernel≥ 5.7, < 5.10.241 | ≥ 5.11, < 5.15.190 | ≥ 5.16, < 6.1.147 | ≥ 6.2, < 6.6.100 | ≥ 6.7, < 6.12.40 | ≥ 6.13, < 6.15.8 | 6.16:rc1 | 6.16:rc2 | 6.16:rc3 | 6.16:rc4 | 6.16:rc5 | 6.16:rc6

3 vendors · 139 products

References

44 links
Show all 44 references