CVE-2025-38275

Kernel crash via unchecked NULL mapping return

Published Jul 10, 2025 · Updated May 23, 2026

NULL pointer dereference in the qcom-qmp-usb PHY driver in Linux allows local users to crash the kernel after a mapping failure. For non-exclusive mappings, qmp_usb_iomap() returns devm_ioremap()'s raw NULL result, while its caller rejects only IS_ERR() pointers. Triggering requires local low-privileged access and a failed Qualcomm QMP USB PHY mapping; the resulting invalid dereference interrupts kernel availability.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the qcom-qmp-usb PHY driver in Linux allows local users to crash the kernel after a mapping failure. For non-exclusive mappings, qmp_usb_iomap() returns devm_ioremap()'s raw NULL result, while its caller rejects only IS_ERR() pointers. Triggering requires local low-privileged access and a failed Qualcomm QMP USB PHY mapping; the resulting invalid dereference interrupts kernel availability.

The record

CVE
CVE-2025-38275
Published
Jul 10, 2025
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 10, 2025CVE publishedPublication date reported by the CVE source.
  2. May 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=368ea32e0ad0335bdf3180067875a928e35387c6
  2. Affected versionversion=5.15.93 <5.16
  3. Affected versionversion=6.1
  4. Affected versionversion=a5d6b1ac56cbd6b5850a3a54e35f1cb71e8e8cdd <0b979a409e40457ca1b5cb48755d1f34eee58805
  5. Affected versionversion=a5d6b1ac56cbd6b5850a3a54e35f1cb71e8e8cdd <0c33117f00c8c5363c22676931b22ae5041f7603
  6. Affected versionversion=a5d6b1ac56cbd6b5850a3a54e35f1cb71e8e8cdd <127dfb4f1c5a2b622039c5d203f321380ea36665
  7. Affected versionversion=a5d6b1ac56cbd6b5850a3a54e35f1cb71e8e8cdd <5072c1749197fc28b27d7efc0d80320d7cac9572
  8. Affected versionversion=a5d6b1ac56cbd6b5850a3a54e35f1cb71e8e8cdd <d14402a38c2d868cacb1facaf9be908ca6558e59

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=368ea32e0ad0335bdf3180067875a928e35387c6; version=5.15.93 <5.16; version=6.1; version=a5d6b1ac56cbd6b5850a3a54e35f1cb71e8e8cdd <0b979a409e40457ca1b5cb48755d1f34eee58805; version=a5d6b1ac56cbd6b5850a3a54e35f1cb71e8e8cdd <0c33117f00c8c5363c22676931b22ae5041f7603; version=a5d6b1ac56cbd6b5850a3a54e35f1cb71e8e8cdd <127dfb4f1c5a2b622039c5d203f321380ea36665; version=a5d6b1ac56cbd6b5850a3a54e35f1cb71e8e8cdd <5072c1749197fc28b27d7efc0d80320d7cac9572; version=a5d6b1ac56cbd6b5850a3a54e35f1cb71e8e8cdd <d14402a38c2d868cacb1facaf9be908ca6558e59

Published CVSS scores

5.5OracleCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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