CVE-2026-90419high

CVE-2026-90419: high-severity vulnerability in Linux

nilfs2: prevent out-of-bounds read in super root block parsing

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.1epss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
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]
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Affected products
Linux · Linux
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In the same product, most dangerous first.

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References
https://git.kernel.org/stable/c/15c8559376416a84c3d8402fd8d0c89bb323d05fhttps://git.kernel.org/stable/c/16df2520502867a4f34e202b89d01243d59bb8b5https://git.kernel.org/stable/c/5b69ebe20d7f944c1f45177dca0c11474ac277cchttps://git.kernel.org/stable/c/7029e70cf86d5c54c0a2812479b0bee2cabcbaaahttps://git.kernel.org/stable/c/71bd64471ff583101b4a33dfc838ce29aef57960https://git.kernel.org/stable/c/7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689https://git.kernel.org/stable/c/842397fdfd2e61d6470166c796f3125b6c27a162https://git.kernel.org/stable/c/dcc85fc28f884038735464f6f104dda9c7dbfad6