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Vulnerabilities

Vulnerability · CVE-2022-50512

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential memory leak in ext4_fc_record_regions() As krealloc may return NULL, in this case 'state->fc

Published Oct 7, 2025 · catalog updated May 11, 2026 · Linux Linux

Check this week

CVE-2022-50512 is not in CISA KEV. FIRST estimates a 16.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
16.00%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 <7069d105c1f15c442b68af43f7fde784f3126739

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential memory leak in ext4_fc_record_regions() As krealloc may return NULL, in this case 'state->fc_regions' may not be freed by krealloc, but 'state->fc_regions' already set NULL. Then will lead to 'state->fc_regions' memory leak.

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 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 <7069d105c1f15c442b68af43f7fde784f31267398016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 <7069d105c1f15c442b68af43f7fde784f3126739

How to fix CVE-2022-50512

  • Recommended remediation

    Affected version ranges suggest a fixed boundary. Verify against the vendor advisory for your release.

  • Official advisories

What to do

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

Should you patch?

CVE-2022-50512 is not in CISA KEV. FIRST estimates a 16.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Which versions are affected?

Compare what you have installed with Linux Linux 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 <7069d105c1f15c442b68af43f7fde784f3126739 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 <7069d105c1f15c442b68af43f7fde784f3126739. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 16.00%. 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. Oct 7, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential memory leak in ext4_fc_record_regions() As krealloc may return NULL, in this case 'state->fc_regions' may not be freed by krealloc, but 'state->fc_regions' already set NULL. Then will lead to 'state->fc_regions' memory leak.

  2. May 11, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential memory leak in ext4_fc_record_regions() As krealloc may return NULL, in this case 'state->fc_regions' may not be freed by krealloc, but 'state->fc_regions' already set NULL. Then will lead to 'state->fc_regions' memory leak.

Sources

  • EUVDVulnerability recordEUVD-2025-32052

    In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential memory leak in ext4_fc_record_regions() As krealloc may return NULL, in this case 'state->fc_regions' may not be freed by krealloc, but 'state->fc_regions' already set NULL. Then will lead to

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog May 11, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

CVE-2022-50512: In the Linux kernel, the following vulnerability ha… · ZeroDay Findings