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Vulnerabilities

Vulnerability · CVE-2023-54305

In the Linux kernel, the following vulnerability has been resolved: ext4: refuse to create ea block when umounted The ea block expansion need to access s_root while it is already s

Published Dec 30, 2025 · catalog updated May 11, 2026 · Linux Linux

Last checked Nov 1, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2023-54305. EPSS is 0.21%. 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
0.21%
Remediation
Version ranges on file
Affected products
vendor Linux Linux e50e5129f384ae282adebfb561189cdb19b81cee <21f6a80d9234422e2eb445734b22c78fc5bf6719

In the Linux kernel, the following vulnerability has been resolved: ext4: refuse to create ea block when umounted The ea block expansion need to access s_root while it is already set as NULL when umount is triggered. Refuse this request to avoid panic.

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 e50e5129f384ae282adebfb561189cdb19b81cee <21f6a80d9234422e2eb445734b22c78fc5bf6719e50e5129f384ae282adebfb561189cdb19b81cee <21f6a80d9234422e2eb445734b22c78fc5bf6719

How to fix CVE-2023-54305

  • Upgrade

    CVE-2023-54305 lists a fix boundary at 21f6a80d9234422e2eb445734b22c78fc5bf6719. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in e50e5129f384ae282adebfb561189cdb19b81cee <21f6a80d9234422e2eb445734b22c78fc5bf6719

  • 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-2023-54305. EPSS is 0.21%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux e50e5129f384ae282adebfb561189cdb19b81cee <21f6a80d9234422e2eb445734b22c78fc5bf6719 e50e5129f384ae282adebfb561189cdb19b81cee <21f6a80d9234422e2eb445734b22c78fc5bf6719. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.21%. 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. Dec 30, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: ext4: refuse to create ea block when umounted The ea block expansion need to access s_root while it is already set as NULL when umount is triggered. Refuse this request to avoid panic.

  2. May 11, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: ext4: refuse to create ea block when umounted The ea block expansion need to access s_root while it is already set as NULL when umount is triggered. Refuse this request to avoid panic.

Sources

  • CVE.orgVulnerability recordCVE-2023-54305

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-54305

    30-day exploitation probability 0.21%

    first.org
  • EUVDVulnerability recordEUVD-2023-60499

    In the Linux kernel, the following vulnerability has been resolved: ext4: refuse to create ea block when umounted The ea block expansion need to access s_root while it is already set as NULL when umount is triggered. Refuse this request to avoid panic.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 1, 2026
  • CVE.orgOct 29, 2026
  • EUVDOct 29, 2026