CVE-2026-90419: linux
Vulnerability summary
CVE-2026-90419 is a high (CVSS 7.1) vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 6.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 17-09-2026PublishedVulnerability first disclosed.
- 19-10-2026Last modifiedVulnerability information updated.
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]
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- NVDNIST7.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
+0.01 pp
From 0.17% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu169 products
- linuxAll versions (No fix recorded)
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded)
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.2.6-1
- linux-6.12< 6.12.111-1~deb12u1
Linux1 product
- linux≥ 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 16df2520502867a4f34e202b89d01243d59bb8b5 | ≥ 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < dcc85fc28f884038735464f6f104dda9c7dbfad6 | ≥ 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 5b69ebe20d7f944c1f45177dca0c11474ac277cc | ≥ 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 7029e70cf86d5c54c0a2812479b0bee2cabcbaaa | ≥ 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 71bd64471ff583101b4a33dfc838ce29aef57960 | ≥ 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 842397fdfd2e61d6470166c796f3125b6c27a162 | ≥ 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 15c8559376416a84c3d8402fd8d0c89bb323d05f | ≥ 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f, < 7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689 | 2.6.30
3 vendors · 172 products