CVE-2026-93145

Power-domain denial of service via incomplete teardown

Published Sep 17, 2026 · Updated Sep 17, 2026

Denial of service in Linux's Qualcomm GDSC driver allows local users to disable power-domain reinitialization via provider rebinding. In drivers/clk/qcom/gdsc.c, gdsc_unregister() omits pm_genpd_remove(), leaving entries in gpd_list that cause subsequent registration to fail with -EEXIST. Exposure requires an affected GDSC provider and an unbind/rebind cycle, such as module unloading or device-tree overlay removal; the disclosed consequence is failed power-domain initialization, not a demonstrated system crash.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Linux's Qualcomm GDSC driver allows local users to disable power-domain reinitialization via provider rebinding. In drivers/clk/qcom/gdsc.c, gdsc_unregister() omits pm_genpd_remove(), leaving entries in gpd_list that cause subsequent registration to fail with -EEXIST. Exposure requires an affected GDSC provider and an unbind/rebind cycle, such as module unloading or device-tree overlay removal; the disclosed consequence is failed power-domain initialization, not a demonstrated system crash.

The record

CVE
CVE-2026-93145
Published
Sep 17, 2026
Updated
Sep 17, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-772
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.4
  2. Affected versionversion=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <0f4733f5fc6b6b62750619f30c18730922a1dbdb
  3. Affected versionversion=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <40bd77fa2857ccfa77b885b77d44cea406f24a4c
  4. Affected versionversion=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <418d2f0a32b2a9ceb656a88aa9139408a9b7b517
  5. Affected versionversion=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <6333cbf7e86df9797b342ce64ae7d32ba46d8d10
  6. Affected versionversion=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <6b9228a43963bcd4db92deb467375345132c29b3
  7. Affected versionversion=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <86b23609d5e17a770d03037e53c6a443e742a6e6
  8. Affected versionversion=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <cfe16d993c578f6b17e0171a8dfd68f6fdfcfb24
  9. Affected versionversion=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <f60f495858379dc70e87c6898d761a9db98739ff

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=4.4; version=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <0f4733f5fc6b6b62750619f30c18730922a1dbdb; version=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <40bd77fa2857ccfa77b885b77d44cea406f24a4c; version=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <418d2f0a32b2a9ceb656a88aa9139408a9b7b517; version=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <6333cbf7e86df9797b342ce64ae7d32ba46d8d10; version=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <6b9228a43963bcd4db92deb467375345132c29b3; version=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <86b23609d5e17a770d03037e53c6a443e742a6e6; version=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <cfe16d993c578f6b17e0171a8dfd68f6fdfcfb24; version=45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 <f60f495858379dc70e87c6898d761a9db98739ff

Published CVSS scores

2.3Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
2.3SUSECVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
5.5Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.2TenableAV:L/AC:L/Au:N/C:C/I:C/A:C
7.1TenableCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-772Missing Release of Resource after Effective Lifetime

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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