CVE-2022-50020
ext4: avoid resizing to a partial cluster size
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ d77147ff443b255d82c907a632c825b2cc610b10; < 7bdfb01fc5f6b3696728aeb527c50386e0ee09a1 (affected, git) ≥ d77147ff443b255d82c907a632c825b2cc610b10; < a6805b3dcf5cd41f2ae3a03dca43411135b99849 (affected, git) ≥ d77147ff443b255d82c907a632c825b2cc610b10; < 80288883294c5b4ed18bae0d8bd9c4a12f297074 (affected, git) ≥ d77147ff443b255d82c907a632c825b2cc610b10; < 72b850a2a996f72541172e7cf686d54a2b29bcd8 (affected, git) ≥ d77147ff443b255d82c907a632c825b2cc610b10; < 0082e99a9074ff88eff729c70c93454c8588d8e1 (affected, git) ≥ d77147ff443b255d82c907a632c825b2cc610b10; < 69cb8e9d8cd97cdf5e293b26d70a9dee3e35e6bd (affected, git) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
4.15 (affected) ≥ 0; < 4.15 (unaffected, semver) ≥ 4.19.256; ≤ 4.19.* (unaffected, semver) ≥ 5.4.211; ≤ 5.4.* (unaffected, semver) ≥ 5.10.138; ≤ 5.10.* (unaffected, semver) ≥ 5.15.63; ≤ 5.15.* (unaffected, semver) ≥ 5.19.4; ≤ 5.19.* (unaffected, semver) ≥ 6.0; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/7bdfb01fc5f6b3696728aeb527c50386e0ee09a1CNA: Linux
- https://git.kernel.org/stable/c/a6805b3dcf5cd41f2ae3a03dca43411135b99849CNA: Linux
- https://git.kernel.org/stable/c/80288883294c5b4ed18bae0d8bd9c4a12f297074CNA: Linux
- https://git.kernel.org/stable/c/72b850a2a996f72541172e7cf686d54a2b29bcd8CNA: Linux
- https://git.kernel.org/stable/c/0082e99a9074ff88eff729c70c93454c8588d8e1CNA: Linux
- https://git.kernel.org/stable/c/69cb8e9d8cd97cdf5e293b26d70a9dee3e35e6bdCNA: Linux
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