5.5

CVE-2022-50512: ext4: fix potential memory leak in ext4_fc_record_regions()

Analyzed
AliasesUBUNTU-CVE-2022-50512DEBIAN-CVE-2022-50512
Published 07-10-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50512 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 4
RHSA-2023:2458SUSE-SU-2025:4111-1SUSE-SU-2025:4139-1SUSE-SU-2025:4149-1SUSE-SU-2025:4320-1

Timeline

  1. 07-10-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.15% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu120 products
  • linuxAll versions (No fix recorded) | < 5.15.0-60.66
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1030.34
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2, < 2cfb769d60a2a57eb3566765428b6131cd16dcfe | ≥ 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2, < 417b0455a0b6d0f60a2930592731d1f8340e24be | ≥ 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2, < a4058b869e6c5e517c79e30532a350d0f3115c3e | ≥ 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2, < 518566e71ad86b7c2f1bf6d9caee9588bb7ac158 | ≥ 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2, < 7069d105c1f15c442b68af43f7fde784f3126739 | 5.10
  • linux_kernel≥ 5.10, < 5.10.150 | ≥ 5.11, < 5.15.75 | ≥ 5.16, < 5.19.17 | ≥ 6.0, < 6.0.3
Debian1 product
  • linux< 6.0.3-1

3 vendors · 123 products

References

9 links