CVE-2022-50020

Advisory lineage Upstream: 0 Downstream: 20
Modified
Published: 18 Jun 2025, 11:01
Last modified:11 May 2026, 19:11

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.05% LOW
0% probability +0.03%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Jun 2025, 11:01
Published
Vulnerability first disclosed
11 May 2026, 19:11
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid resizing to a partial cluster size This patch avoids an attempt to resize the filesystem to an unaligned cluster boundary. An online resize to a size that is not integral to cluster size results in the last iteration attempting to grow the fs by a negative amount, which trips a BUG_ON and leaves the fs with a corrupted in-memory superblock.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.05%• Percentile: 16%

Techniques & Countermeasures

  • CWE-1284•Improper Validation of Specified Quantity in Input

    The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

Affected Systems

  • linux•linux

    ≥ d77147ff443b255d82c907a632c825b2cc610b10, < 7bdfb01fc5f6b3696728aeb527c50386e0ee09a1 | ≥ d77147ff443b255d82c907a632c825b2cc610b10, < a6805b3dcf5cd41f2ae3a03dca43411135b99849 | ≥ d77147ff443b255d82c907a632c825b2cc610b10, < 80288883294c5b4ed18bae0d8bd9c4a12f297074 | ≥ d77147ff443b255d82c907a632c825b2cc610b10, < 72b850a2a996f72541172e7cf686d54a2b29bcd8 | ≥ d77147ff443b255d82c907a632c825b2cc610b10, < 0082e99a9074ff88eff729c70c93454c8588d8e1 | ≥ d77147ff443b255d82c907a632c825b2cc610b10, < 69cb8e9d8cd97cdf5e293b26d70a9dee3e35e6bd | 4.15

  • linux•linux_kernel

    < 4.9.326 | ≥ 4.10, < 4.14.291 | ≥ 4.15, < 4.19.256 | ≥ 4.20, < 5.4.211 | ≥ 5.5, < 5.10.138 | ≥ 5.11, < 5.15.63 | ≥ 5.16, < 5.19.4

References (6)