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Vulnerabilities

Vulnerability · CVE-2026-23007

In the Linux kernel, the following vulnerability has been resolved: block: zero non-PI portion of auto integrity buffer The auto-generated integrity buffer for writes needs to be f

Published Jan 25, 2026 · catalog updated Oct 21, 2026 · Linux Linux

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-23007. EPSS is 0.20%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.20%
Remediation
Version ranges on file
Affected products
vendor Linux Linux c546d6f438338017480d105ab597292da67f6f6a <d6072557b90e0c557df319a56f4a9dc482706d2c

In the Linux kernel, the following vulnerability has been resolved: block: zero non-PI portion of auto integrity buffer The auto-generated integrity buffer for writes needs to be fully initialized before being passed to the underlying block device, otherwise the uninitialized memory can be read back by userspace or anyone with physical access to the storage device. If protection information is generated, that portion of the integrity buffer is already initialized. The integrity data is also zeroed if PI generation is disabled via sysfs or the PI tuple size is 0. However, this misses the case w

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux c546d6f438338017480d105ab597292da67f6f6a <d6072557b90e0c557df319a56f4a9dc482706d2cc546d6f438338017480d105ab597292da67f6f6a <d6072557b90e0c557df319a56f4a9dc482706d2c

How to fix CVE-2026-23007

  • Upgrade

    CVE-2026-23007 lists a fix boundary at d6072557b90e0c557df319a56f4a9dc482706d2c. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in c546d6f438338017480d105ab597292da67f6f6a <d6072557b90e0c557df319a56f4a9dc482706d2c

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-23007. EPSS is 0.20%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux c546d6f438338017480d105ab597292da67f6f6a <d6072557b90e0c557df319a56f4a9dc482706d2c c546d6f438338017480d105ab597292da67f6f6a <d6072557b90e0c557df319a56f4a9dc482706d2c. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.20%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 25, 2026 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: block: zero non-PI portion of auto integrity buffer The auto-generated integrity buffer for writes needs to be fully initialized before being passed to the underlying block device, otherwise the uninitialized memory can be read back by userspace or anyone with physical access to the storage device. If protection information is gen

  2. Oct 21, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: block: zero non-PI portion of auto integrity buffer The auto-generated integrity buffer for writes needs to be fully initialized before being passed to the underlying block device, otherwise the uninitialized memory can be read back by userspace or anyone with physical access to the storage device. If protection information is gen

Sources

  • CVE.orgVulnerability recordCVE-2026-23007

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-23007

    30-day exploitation probability 0.20%

    first.org
  • EUVDVulnerability recordEUVD-2026-4628

    In the Linux kernel, the following vulnerability has been resolved: block: zero non-PI portion of auto integrity buffer The auto-generated integrity buffer for writes needs to be fully initialized before being passed to the underlying block device, otherwise the uninitialized mem

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 5, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 2, 2026