CVE-2026-90419

HIGHCVSS 7.1/10

Last modified

CVE-2026-90419 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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].

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]

Metrics

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 16df2520502867a4f34e202b89d01243d59bb8b5; >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < dcc85fc28f884038735464f6f104dda9c7dbfad6; >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 5b69ebe20d7f944c1f45177dca0c11474ac277cc; >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 7029e70cf86d5c54c0a2812479b0bee2cabcbaaa; >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 71bd64471ff583101b4a33dfc838ce29aef57960; >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 842397fdfd2e61d6470166c796f3125b6c27a162; >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 15c8559376416a84c3d8402fd8d0c89bb323d05f; >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689
LinuxLinux2.6.30

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-90419?
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]
How severe is CVE-2026-90419?
CVE-2026-90419 has a CVSS score of 7.1/10 (HIGH severity).
How do I fix CVE-2026-90419?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST