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CVE-2026-90419NVD
Vulnerability Summary
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]
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 v3.1 Base Metrics — Score 7.1 (HIGH)
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityHigh
Affected & Patched Versions
- Linux Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f and < 16df2520502867a4f34e202b89d01243d59bb8b5
- Linux Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f and < dcc85fc28f884038735464f6f104dda9c7dbfad6
- Linux Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f and < 5b69ebe20d7f944c1f45177dca0c11474ac277cc
- Linux Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f and < 7029e70cf86d5c54c0a2812479b0bee2cabcbaaa
- Linux Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f and < 71bd64471ff583101b4a33dfc838ce29aef57960
- Linux Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f and < 842397fdfd2e61d6470166c796f3125b6c27a162
- Linux Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f and < 15c8559376416a84c3d8402fd8d0c89bb323d05f
- Linux Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f and < 7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689
- Linux Linux >= 2.6.30
- Linux Linux 16df2520502867a4f34e202b89d01243d59bb8b5
- Linux Linux dcc85fc28f884038735464f6f104dda9c7dbfad6
- Linux Linux 5b69ebe20d7f944c1f45177dca0c11474ac277cc
- Linux Linux 7029e70cf86d5c54c0a2812479b0bee2cabcbaaa
- Linux Linux 71bd64471ff583101b4a33dfc838ce29aef57960
- Linux Linux 842397fdfd2e61d6470166c796f3125b6c27a162
- Linux Linux 15c8559376416a84c3d8402fd8d0c89bb323d05f
- Linux Linux 7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689
External References
- https://git.kernel.org/stable/c/16df2520502867a4f34e202b89d01243d59bb8b5
- https://git.kernel.org/stable/c/dcc85fc28f884038735464f6f104dda9c7dbfad6
- https://git.kernel.org/stable/c/5b69ebe20d7f944c1f45177dca0c11474ac277cc
- https://git.kernel.org/stable/c/7029e70cf86d5c54c0a2812479b0bee2cabcbaaa
- https://git.kernel.org/stable/c/71bd64471ff583101b4a33dfc838ce29aef57960
- https://git.kernel.org/stable/c/842397fdfd2e61d6470166c796f3125b6c27a162
- https://git.kernel.org/stable/c/15c8559376416a84c3d8402fd8d0c89bb323d05f
- https://git.kernel.org/stable/c/7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689