Answer in brief
CVE-2026-90419 records a High severity (CVSS 7.1) vulnerability in nilfs2: prevent out-of-bounds read in super root block parsing. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=8a9d2191e9f43bbcd256a9a6871bd73434c83f2f <16df2520502867a4f34e202b89d01243d59bb8b5 || >=8a9d2191e9f43bbcd256a9a6871bd73434c83f2f <dcc85fc28f884038735464f6f104dda9c7dbfad6 || >=8a9d2191e9f43bbcd256a9a6871bd73434c83f2f <5b69ebe20d7f944c1f45177dca0c11474ac277cc || >=8a9d2191e9f43bbcd256a9a6871bd73434c83f2f <7029e70cf86d5c54c0a2812479b0bee2cabcbaaa || >=8a9d2191e9f43bbcd256a9a6871bd73434c83f2f <71bd64471ff583101b4a33dfc838ce29aef57960 || >=8a9d2191e9f43bbcd256a9a6871bd73434c83f2f <842397fdfd2e61d6470166c796f3125b6c27a162 || >=8a9d2191e9f43bbcd256a9a6871bd73434c83f2f <15c8559376416a84c3d8402fd8d0c89bb323d05f || >=8a9d2191e9f43bbcd256a9a6871bd73434c83f2f <7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689 | 16df2520502867a4f34e202b89d01243d59bb8b5, dcc85fc28f884038735464f6f104dda9c7dbfad6, 5b69ebe20d7f944c1f45177dca0c11474ac277cc, 7029e70cf86d5c54c0a2812479b0bee2cabcbaaa, 71bd64471ff583101b4a33dfc838ce29aef57960, 842397fdfd2e61d6470166c796f3125b6c27a162, 15c8559376416a84c3d8402fd8d0c89bb323d05f, 7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689 |
| Linux/Linuxgeneric | 2.6.30 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 17, 2026
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]
Quoted source text, attributed separately from HOL analysis.