CVE-2026-90283
hugetlbfs: release subpool on fill_super failure
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
7ca02d0ae586fe7df59632966a64f3f1a756ef05 < f2d6cea221d777fab3ba18f805ba4c17c90e0b8b 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 91c4f3a87862fd86594d5945512decbfa0b1d13d 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 04f0354a4abf6793aa5b3f32e2b019ab206f344d 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < dfe848cadfde4179a0691da34f4bed36ff7185b5 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < dc2bd517ac0bce4ec7498644bd16b6db502df8e2 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 308ab73e97c87bd0e142b11758faab7f88d82854
Linux / Linux
4.1
References
git.kernel.org: https://git.kernel.org/stable/c/f2d6cea221d777fab3ba18f805ba4c17c90e0b8b git.kernel.org: https://git.kernel.org/stable/c/91c4f3a87862fd86594d5945512decbfa0b1d13d git.kernel.org: https://git.kernel.org/stable/c/04f0354a4abf6793aa5b3f32e2b019ab206f344d git.kernel.org: https://git.kernel.org/stable/c/5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b git.kernel.org: https://git.kernel.org/stable/c/1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa git.kernel.org: https://git.kernel.org/stable/c/dfe848cadfde4179a0691da34f4bed36ff7185b5 git.kernel.org: https://git.kernel.org/stable/c/dc2bd517ac0bce4ec7498644bd16b6db502df8e2 git.kernel.org: https://git.kernel.org/stable/c/308ab73e97c87bd0e142b11758faab7f88d82854