{"id":"CVE-2026-90419","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: prevent out-of-bounds read in super root block parsing\n\nsuper-root inode metadata size is trusted before nilfs_read_inode_common().\n\nReject super-root inode siz…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: prevent out-of-bounds read in super root block parsing\n\nsuper-root inode metadata size is trusted before nilfs_read_inode_common().\n\nReject super-root inode siz…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < 16df2520502867a4f34e202b89d01243d59bb8b5","Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < dcc85fc28f884038735464f6f104dda9c7dbfad6","Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < 5b69ebe20d7f944c1f45177dca0c11474ac277cc","Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < 7029e70cf86d5c54c0a2812479b0bee2cabcbaaa","Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < 71bd64471ff583101b4a33dfc838ce29aef57960","Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < 842397fdfd2e61d6470166c796f3125b6c27a162","Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < 15c8559376416a84c3d8402fd8d0c89bb323d05f","Linux >= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < 7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689","Linux 2.6.30"],"published":"2026-09-17","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:17:58.473","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90419","references":[{"url":"https://git.kernel.org/stable/c/15c8559376416a84c3d8402fd8d0c89bb323d05f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/16df2520502867a4f34e202b89d01243d59bb8b5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5b69ebe20d7f944c1f45177dca0c11474ac277cc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7029e70cf86d5c54c0a2812479b0bee2cabcbaaa","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/71bd64471ff583101b4a33dfc838ce29aef57960","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/842397fdfd2e61d6470166c796f3125b6c27a162","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dcc85fc28f884038735464f6f104dda9c7dbfad6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00169,"epssPercentile":0.06637,"ingestedAt":"2026-09-17T16:21:47.795Z","slug":"CVE-2026-90419","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: prevent out-of-bounds read in super root block parsing\n\nsuper-root inode metadata size is trusted before nilfs_read_inode_common().\n\nReject super-root inode sizes whose computed on-disk footprint exceeds the\nfilesystem block size. This prevents malformed filesystem images from\nmaking nilfs_read_inode_common() read past the end of the super-root block.\n\n[ryusuke: clarify the commit title]\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":207315,"id":"CVE-2026-90419","ts":1789757340739,"field":"cvss","old":null,"new":"7.1"},{"seq":207314,"id":"CVE-2026-90419","ts":1789757340739,"field":"severity","old":"none","new":"high"}]}