CVE-2026-90283hugetlbfs: release subpool on fill_super failure
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: hugetlbfs: release subpool on fill_super failure hugetlbfs_fill_super() allocates a hugepage subpool when size or min_size mount options are specified. hugepage_new_subpool() may also reserve huge pages for min_size. If root dentry creation fails after the subpool is created, the failure path frees the subpool with kfree(). This bypasses hugepage_put_subpool() and can leave min_size reservations charged. Use hugepage_put_subpool() on the failure path, matching the normal put_super path.
- CVSS
- Not yet scored
- 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 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 7ca02d0ae586fe7df59632966a64f3f1a756ef05 before f2d6cea221d777fab3ba18f805ba4c17c90e0b8b; from 7ca02d0ae586fe7df59632966a64f3f1a756ef05 before 91c4f3a87862fd86594d5945512decbfa0b1d13d; 7ca02d0ae586fe7df59632966a64f3f1a756ef05 builds before 04f0354a4abf6793aa5b3f32e2b019ab206f344d; 7ca02d0ae586fe7df59632966a64f3f1a756ef05 builds before 5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b; 7ca02d0ae586fe7df59632966a64f3f1a756ef05 builds before 1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa; from 7ca02d0ae586fe7df59632966a64f3f1a756ef05 before dfe848cadfde4179a0691da34f4bed36ff7185b5; from 7ca02d0ae586fe7df59632966a64f3f1a756ef05 before dc2bd517ac0bce4ec7498644bd16b6db502df8e2; from 7ca02d0ae586fe7df59632966a64f3f1a756ef05 before 308ab73e97c87bd0e142b11758faab7f88d82854 | CNA record |
References
- https://git.kernel.org/stable/c/f2d6cea221d777fab3ba18f805ba4c17c90e0b8b
- https://git.kernel.org/stable/c/91c4f3a87862fd86594d5945512decbfa0b1d13d
- https://git.kernel.org/stable/c/04f0354a4abf6793aa5b3f32e2b019ab206f344d
- https://git.kernel.org/stable/c/5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b
- https://git.kernel.org/stable/c/1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa
- https://git.kernel.org/stable/c/dfe848cadfde4179a0691da34f4bed36ff7185b5
- https://git.kernel.org/stable/c/dc2bd517ac0bce4ec7498644bd16b6db502df8e2
- https://git.kernel.org/stable/c/308ab73e97c87bd0e142b11758faab7f88d82854
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.