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Vulnerabilities

Vulnerability · CVE-2023-54041

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix memory leak when removing provided buffers When removing provided buffers, io_buffer structs are n

Published Dec 24, 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-2023-54041. EPSS is 0.19%. 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
0.19%
Remediation
Version ranges on file
Affected products
vendor Linux Linux cc3cec8367cba76a8ae4c271eba8450f3efc1ba3 <b4a72c0589fdea6259720375426179888969d6a2

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix memory leak when removing provided buffers When removing provided buffers, io_buffer structs are not being disposed of, leading to a memory leak. They can't be freed individually, because they are allocated in page-sized groups. They need to be added to some free list instead, such as io_buffers_cache. All callers already hold the lock protecting it, apart from when destroying buffers, so had to extend the lock there.

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 cc3cec8367cba76a8ae4c271eba8450f3efc1ba3 <b4a72c0589fdea6259720375426179888969d6a2cc3cec8367cba76a8ae4c271eba8450f3efc1ba3 <b4a72c0589fdea6259720375426179888969d6a2

How to fix CVE-2023-54041

  • Upgrade

    CVE-2023-54041 lists a fix boundary at b4a72c0589fdea6259720375426179888969d6a2. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in cc3cec8367cba76a8ae4c271eba8450f3efc1ba3 <b4a72c0589fdea6259720375426179888969d6a2

  • 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-2023-54041. EPSS is 0.19%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux cc3cec8367cba76a8ae4c271eba8450f3efc1ba3 <b4a72c0589fdea6259720375426179888969d6a2 cc3cec8367cba76a8ae4c271eba8450f3efc1ba3 <b4a72c0589fdea6259720375426179888969d6a2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.19%. 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 24, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: io_uring: fix memory leak when removing provided buffers When removing provided buffers, io_buffer structs are not being disposed of, leading to a memory leak. They can't be freed individually, because they are allocated in page-sized groups. They need to be added to some free list instead, such as io_buffers_cache. All callers al

  2. May 11, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: io_uring: fix memory leak when removing provided buffers When removing provided buffers, io_buffer structs are not being disposed of, leading to a memory leak. They can't be freed individually, because they are allocated in page-sized groups. They need to be added to some free list instead, such as io_buffers_cache. All callers al

Sources

  • CVE.orgVulnerability recordCVE-2023-54041

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-54041

    30-day exploitation probability 0.19%

    first.org
  • EUVDVulnerability recordEUVD-2025-205113

    In the Linux kernel, the following vulnerability has been resolved: io_uring: fix memory leak when removing provided buffers When removing provided buffers, io_buffer structs are not being disposed of, leading to a memory leak. They can't be freed individually, because they are a

    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