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.
Affected products
linux: linux kernel
References6
- git.kernel.org/stable/c/0082e99a9074ff88eff729c70c93454c8588d8e1 Patch
- git.kernel.org/stable/c/69cb8e9d8cd97cdf5e293b26d70a9dee3e35e6bd Patch
- git.kernel.org/stable/c/72b850a2a996f72541172e7cf686d54a2b29bcd8 Patch
- git.kernel.org/stable/c/7bdfb01fc5f6b3696728aeb527c50386e0ee09a1 Patch
- git.kernel.org/stable/c/80288883294c5b4ed18bae0d8bd9c4a12f297074 Patch
- git.kernel.org/stable/c/a6805b3dcf5cd41f2ae3a03dca43411135b99849 Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 11 · as of 7 November 2026
- CWE
- CWE-1284
Could this be exploited in your environment?
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