CVE-2026-90419
High
Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: prevent out-of-bounds read in super root block parsing super-root inode metadata size is trusted before nilfs_read_inode_common(). Reject super-root inode sizes whose computed on-disk footprint exceeds the filesystem block size. This prevents malformed filesystem images from making nilfs_read_inode_common() read past the end of the super-root block. [ryusuke: clarify the commit title]
SeverityHigh
CVSS7.1
Exploit probability—
Product
Linux
PublishedSep 17, 2026
First seenSep 17, 2026
How to fix
Update
- Linux Linux16df2520502867a4f34e202b89d01243d59bb8b5, dcc85fc28f884038735464f6f104dda9c7dbfad6, 5b69ebe20d7f944c1f45177dca0c11474ac277cc, 7029e70cf86d5c54c0a2812479b0bee2cabcbaaa, 71bd64471ff583101b4a33dfc838ce29aef57960, 842397fdfd2e61d6470166c796f3125b6c27a162, 15c8559376416a84c3d8402fd8d0c89bb323d05f, 7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f ≤ v < 16df2520502867a4f34e202b89d01243d59bb8b5, 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f ≤ v < dcc85fc28f884038735464f6f104dda9c7dbfad6, 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f ≤ v < 5b69ebe20d7f944c1f45177dca0c11474ac277cc, 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f ≤ v < 7029e70cf86d5c54c0a2812479b0bee2cabcbaaa, 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f ≤ v < 71bd64471ff583101b4a33dfc838ce29aef57960, 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f ≤ v < 842397fdfd2e61d6470166c796f3125b6c27a162, 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f ≤ v < 15c8559376416a84c3d8402fd8d0c89bb323d05f, 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f ≤ v < 7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689, 2.6.30 | 16df2520502867a4f34e202b89d01243d59bb8b5, dcc85fc28f884038735464f6f104dda9c7dbfad6, 5b69ebe20d7f944c1f45177dca0c11474ac277cc, 7029e70cf86d5c54c0a2812479b0bee2cabcbaaa, 71bd64471ff583101b4a33dfc838ce29aef57960, 842397fdfd2e61d6470166c796f3125b6c27a162, 15c8559376416a84c3d8402fd8d0c89bb323d05f, 7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689 |
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