CVE-2022-50020 (GCVE-0-2022-50020)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:01 – Updated: 2026-05-11 19:11
VLAI
Title
ext4: avoid resizing to a partial cluster size
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d77147ff443b255d82c907a632c825b2cc610b10 , < 7bdfb01fc5f6b3696728aeb527c50386e0ee09a1 (git)
Affected: d77147ff443b255d82c907a632c825b2cc610b10 , < a6805b3dcf5cd41f2ae3a03dca43411135b99849 (git)
Affected: d77147ff443b255d82c907a632c825b2cc610b10 , < 80288883294c5b4ed18bae0d8bd9c4a12f297074 (git)
Affected: d77147ff443b255d82c907a632c825b2cc610b10 , < 72b850a2a996f72541172e7cf686d54a2b29bcd8 (git)
Affected: d77147ff443b255d82c907a632c825b2cc610b10 , < 0082e99a9074ff88eff729c70c93454c8588d8e1 (git)
Affected: d77147ff443b255d82c907a632c825b2cc610b10 , < 69cb8e9d8cd97cdf5e293b26d70a9dee3e35e6bd (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 4.19.256 , ≤ 4.19.* (semver)
Unaffected: 5.4.211 , ≤ 5.4.* (semver)
Unaffected: 5.10.138 , ≤ 5.10.* (semver)
Unaffected: 5.15.63 , ≤ 5.15.* (semver)
Unaffected: 5.19.4 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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      "cve": "CVE-2022-50020",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ext4: avoid resizing to a partial cluster size",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50020.json",
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}



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