nilfs2: prevent out-of-bounds read in super root block parsing
Summary
| CVE | CVE-2026-90419 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-17 17:17:46 UTC |
| Updated | 2026-10-19 09:19:36 UTC |
| 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] |
Risk And Classification
Primary CVSS: v3.1 7.1 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
EPSS: 0.001690000 probability, percentile 0.066270000 (date 2026-09-21)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 7.1 | HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H |
| 3.1 | CNA | DECLARED | 7.1 | HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f 16df2520502867a4f34e202b89d01243d59bb8b5 git | Not specified |
| CNA | Linux | Linux | affected 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f dcc85fc28f884038735464f6f104dda9c7dbfad6 git | Not specified |
| CNA | Linux | Linux | affected 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f 5b69ebe20d7f944c1f45177dca0c11474ac277cc git | Not specified |
| CNA | Linux | Linux | affected 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f 7029e70cf86d5c54c0a2812479b0bee2cabcbaaa git | Not specified |
| CNA | Linux | Linux | affected 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f 71bd64471ff583101b4a33dfc838ce29aef57960 git | Not specified |
| CNA | Linux | Linux | affected 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f 842397fdfd2e61d6470166c796f3125b6c27a162 git | Not specified |
| CNA | Linux | Linux | affected 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f 15c8559376416a84c3d8402fd8d0c89bb323d05f git | Not specified |
| CNA | Linux | Linux | affected 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f 7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689 git | Not specified |
| CNA | Linux | Linux | affected 2.6.30 | Not specified |
| CNA | Linux | Linux | unaffected 2.6.30 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.270 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.221 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.188 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.157 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.110 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.52 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.6 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/7029e70cf86d5c54c0a2812479b0bee2cabcbaaa | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/dcc85fc28f884038735464f6f104dda9c7dbfad6 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/5b69ebe20d7f944c1f45177dca0c11474ac277cc | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/842397fdfd2e61d6470166c796f3125b6c27a162 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/16df2520502867a4f34e202b89d01243d59bb8b5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/71bd64471ff583101b4a33dfc838ce29aef57960 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/15c8559376416a84c3d8402fd8d0c89bb323d05f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.