{"id":"CVE-2026-90283","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nhugetlbfs: release subpool on fill_super failure\n\nhugetlbfs_fill_super() allocates a hugepage subpool when size or min_size\nmount options are specified","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nhugetlbfs: release subpool on fill_super failure\n\nhugetlbfs_fill_super() allocates a hugepage subpool when size or min_size\nmount options are specified.  hugepage_new_s…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < f2d6cea221d777fab3ba18f805ba4c17c90e0b8b","Linux >= 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 91c4f3a87862fd86594d5945512decbfa0b1d13d","Linux >= 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 04f0354a4abf6793aa5b3f32e2b019ab206f344d","Linux >= 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b","Linux >= 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa","Linux >= 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < dfe848cadfde4179a0691da34f4bed36ff7185b5","Linux >= 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < dc2bd517ac0bce4ec7498644bd16b6db502df8e2","Linux >= 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 308ab73e97c87bd0e142b11758faab7f88d82854","Linux 4.1"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:25.063","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90283","references":[{"url":"https://git.kernel.org/stable/c/04f0354a4abf6793aa5b3f32e2b019ab206f344d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/308ab73e97c87bd0e142b11758faab7f88d82854","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/91c4f3a87862fd86594d5945512decbfa0b1d13d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dc2bd517ac0bce4ec7498644bd16b6db502df8e2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dfe848cadfde4179a0691da34f4bed36ff7185b5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f2d6cea221d777fab3ba18f805ba4c17c90e0b8b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90283.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90283"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536453"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90283"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90283"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90283.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.834Z","epss":0.00227,"epssPercentile":0.13364,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-772"],"slug":"CVE-2026-90283","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nhugetlbfs: release subpool on fill_super failure\n\nhugetlbfs_fill_super() allocates a hugepage subpool when size or min_size\nmount options are specified.  hugepage_new_subpool() may also reserve huge\npages for min_size.\n\nIf root dentry creation fails after the subpool is created, the failure\npath frees the subpool with kfree().  This bypasses hugepage_put_subpool()\nand can leave min_size reservations charged.\n\nUse hugepage_put_subpool() on the failure path, matching the normal\nput_super path.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90283.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":216298,"id":"CVE-2026-90283","ts":1791274068274,"field":"cvss","old":null,"new":"5.5"},{"seq":216297,"id":"CVE-2026-90283","ts":1791274068274,"field":"severity","old":"none","new":"medium"}]}