CVE-2026-72314

Incorrect lock state via mismatched deadlock error check

Published Aug 15, 2026 · Updated Aug 15, 2026

Incorrect lock handling in the Linux kernel regulator core allows local users to leave regulator pairs partially locked during contention. The regulator_lock_two function compares the -EDEADLK result from ww_mutex_lock against -EDEADLOCK, so MIPS skips the required unlock-and-retry path. CAP_SYS_ADMIN is required to bind a driver through sysfs and reach regulator_resolve_supply; the inconsistent lock state can destabilize the system.

CVSS severity7.8
High
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

Incorrect lock handling in the Linux kernel regulator core allows local users to leave regulator pairs partially locked during contention. The regulator_lock_two function compares the -EDEADLK result from ww_mutex_lock against -EDEADLOCK, so MIPS skips the required unlock-and-retry path. CAP_SYS_ADMIN is required to bind a driver through sysfs and reach regulator_resolve_supply; the inconsistent lock state can destabilize the system.

The record

CVE
CVE-2026-72314
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-1025, T1499.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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=06140d6dfe720d80566f792b4e28a9cd60a67970 <dc804f390fddd9c389edf0976356942e16878d8f
  2. Affected versionversion=1e3056b8067c2e9b7741c4e588f0acacbe4bdafc <8e39aa63798ea0a797fd9341419f12ef91df3238
  3. Affected versionversion=435c65af581a61ca249bd8f717c3a147dc119f11
  4. Affected versionversion=5.10.180 <5.10.261
  5. Affected versionversion=5.15.111 <5.15.212
  6. Affected versionversion=5224ea575196db11c0a909a78ea426ccdb92f064
  7. Affected versionversion=5.4.243 <5.5
  8. Affected versionversion=6.1.28 <6.1.178
  9. Affected versionversion=6.2.15 <6.3
  10. Affected versionversion=6.3.2 <6.4
  11. Affected versionversion=6.4
  12. Affected versionversion=849ab4cf182b38e562ffcc1b494d510e948822dd <0c305eac40470a224671858a215963b070f9b2a9
  13. Affected versionversion=cba6cfdc7c3f1516f0d08ddfb24e689af0932573 <153d1b8b5bc30847eb70ad535f62f289aa9217e6
  14. Affected versionversion=cba6cfdc7c3f1516f0d08ddfb24e689af0932573 <29a7953e9adea6c7f9e64947745b79158e7cea7f
  15. Affected versionversion=cba6cfdc7c3f1516f0d08ddfb24e689af0932573 <346e2d666a29ae7233c56b356a0487eb1d42589b
  16. Affected versionversion=cba6cfdc7c3f1516f0d08ddfb24e689af0932573 <d38f8bd771c4999b797d7074b348cf201414bd34
  17. Affected versionversion=cba6cfdc7c3f1516f0d08ddfb24e689af0932573 <e2063307ea3b6da74585129ba7b588e8243e2ef0
  18. Affected versionversion=cdc042430ea9e07f77ce05a9d29e227dbdecc733

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=06140d6dfe720d80566f792b4e28a9cd60a67970 <dc804f390fddd9c389edf0976356942e16878d8f; version=1e3056b8067c2e9b7741c4e588f0acacbe4bdafc <8e39aa63798ea0a797fd9341419f12ef91df3238; version=435c65af581a61ca249bd8f717c3a147dc119f11; version=5.10.180 <5.10.261; version=5.15.111 <5.15.212; version=5224ea575196db11c0a909a78ea426ccdb92f064; version=5.4.243 <5.5; version=6.1.28 <6.1.178; version=6.2.15 <6.3; version=6.3.2 <6.4; version=6.4; version=849ab4cf182b38e562ffcc1b494d510e948822dd <0c305eac40470a224671858a215963b070f9b2a9; version=cba6cfdc7c3f1516f0d08ddfb24e689af0932573 <153d1b8b5bc30847eb70ad535f62f289aa9217e6; version=cba6cfdc7c3f1516f0d08ddfb24e689af0932573 <29a7953e9adea6c7f9e64947745b79158e7cea7f; version=cba6cfdc7c3f1516f0d08ddfb24e689af0932573 <346e2d666a29ae7233c56b356a0487eb1d42589b; version=cba6cfdc7c3f1516f0d08ddfb24e689af0932573 <d38f8bd771c4999b797d7074b348cf201414bd34; version=cba6cfdc7c3f1516f0d08ddfb24e689af0932573 <e2063307ea3b6da74585129ba7b588e8243e2ef0; version=cdc042430ea9e07f77ce05a9d29e227dbdecc733

Published CVSS scores

7.8kernel.orgCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.5Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
5.5Oracle LinuxCVSS: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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1025Comparison Using Wrong Factors
T1499.004Application or System Exploitation

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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