CVE-2026-90419

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

HIGH
7.1
CVSS Score
Published: September 17, 2026 at 04:09 PM UTC
Updated: October 19, 2026 at 09:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%

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]

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.6.308a9d2191e9f43bbcd256a9a6871bd73434c83f2f
Vendor states this is fixed in 15c8559376416a84c3d8402fd8d0c89bb323d05f (fixed)
Vendor states this is fixed in 16df2520502867a4f34e202b89d01243d59bb8b5 (fixed)
Vendor states this is fixed in 5b69ebe20d7f944c1f45177dca0c11474ac277cc (fixed)
Vendor states this is fixed in 7029e70cf86d5c54c0a2812479b0bee2cabcbaaa (fixed)
Vendor states this is fixed in 71bd64471ff583101b4a33dfc838ce29aef57960 (fixed)
Vendor states this is fixed in 7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689 (fixed)
Vendor states this is fixed in 842397fdfd2e61d6470166c796f3125b6c27a162 (fixed)
Vendor states this is fixed in dcc85fc28f884038735464f6f104dda9c7dbfad6 (fixed)
Vendor states this is fixed in 2.6.30 (unaffected)
Vendor states this is fixed in 5.10.270 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

7.1HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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