CVE-2026-72096

Audit suppression via non-atomic dm-verity error counter

Published Aug 15, 2026 · Updated Aug 15, 2026

Race condition in the Linux kernel dm-verity target allows local users to suppress a maximum-corrupted-errors audit event. The dm-verity verification path increments v->corrupted_errs non-atomically, so concurrent corrupted-block errors can lose updates and skip dm_audit_log_target("max-corrupted-errors"). Exploitation requires local low-privileged access and concurrent error generation against a dm-verity mapping; the documented consequence is loss of that audit signal rather than direct data disclosure or code execution.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the Linux kernel dm-verity target allows local users to suppress a maximum-corrupted-errors audit event. The dm-verity verification path increments v->corrupted_errs non-atomically, so concurrent corrupted-block errors can lose updates and skip dm_audit_log_target("max-corrupted-errors"). Exploitation requires local low-privileged access and concurrent error generation against a dm-verity mapping; the documented consequence is loss of that audit signal rather than direct data disclosure or code execution.

The record

CVE
CVE-2026-72096
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-663, T1685.004
Attack vector
local
Privileges
authenticated

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=4.1
  2. Affected versionversion=65ff5b7ddf0541f2b6e5cc59c47bfbf6cbcd91b8 <089e05b644d5aa786c21af467c80b24d691becb1
  3. Affected versionversion=65ff5b7ddf0541f2b6e5cc59c47bfbf6cbcd91b8 <3303e5c6501e3638ded8e9402d703805b00ce64e
  4. Affected versionversion=65ff5b7ddf0541f2b6e5cc59c47bfbf6cbcd91b8 <752e214b2c6f15b40b0d873a2ce27733ce0884c6
  5. Affected versionversion=65ff5b7ddf0541f2b6e5cc59c47bfbf6cbcd91b8 <8ec4d9c5a5cf4b61fc087f871465b1f79b393325
  6. Affected versionversion=65ff5b7ddf0541f2b6e5cc59c47bfbf6cbcd91b8 <ac99781115d37d10894653b47941d9d8fc26fa64

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.1; version=65ff5b7ddf0541f2b6e5cc59c47bfbf6cbcd91b8 <089e05b644d5aa786c21af467c80b24d691becb1; version=65ff5b7ddf0541f2b6e5cc59c47bfbf6cbcd91b8 <3303e5c6501e3638ded8e9402d703805b00ce64e; version=65ff5b7ddf0541f2b6e5cc59c47bfbf6cbcd91b8 <752e214b2c6f15b40b0d873a2ce27733ce0884c6; version=65ff5b7ddf0541f2b6e5cc59c47bfbf6cbcd91b8 <8ec4d9c5a5cf4b61fc087f871465b1f79b393325; version=65ff5b7ddf0541f2b6e5cc59c47bfbf6cbcd91b8 <ac99781115d37d10894653b47941d9d8fc26fa64

Published CVSS scores

5.5OracleCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.5Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-663Use of a Non-reentrant Function in a Concurrent Context
T1685.004Disable or Modify Linux Audit System Log

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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