Answer in brief
CVE-2026-90419 records a Unknown severity 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.
A CVSS score is not reported in the current record. 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
Sep 17, 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.