CVE-2026-90419nilfs2: prevent out-of-bounds read in super root block parsing
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f before 16df2520502867a4f34e202b89d01243d59bb8b5; from 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f before dcc85fc28f884038735464f6f104dda9c7dbfad6; 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f builds before 5b69ebe20d7f944c1f45177dca0c11474ac277cc; from 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f before 7029e70cf86d5c54c0a2812479b0bee2cabcbaaa; from 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f before 71bd64471ff583101b4a33dfc838ce29aef57960; from 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f before 842397fdfd2e61d6470166c796f3125b6c27a162; from 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f before 15c8559376416a84c3d8402fd8d0c89bb323d05f; 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f builds before 7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689 | CNA record |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.