CVE-2026-90283
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < f2d6cea221d777fab3ba18f805ba4c17c90e0b8b | affected |
| Linux | Linux | 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 91c4f3a87862fd86594d5945512decbfa0b1d13d | affected |
| Linux | Linux | 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 04f0354a4abf6793aa5b3f32e2b019ab206f344d | affected |
| Linux | Linux | 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b | affected |
| Linux | Linux | 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa | affected |
| Linux | Linux | 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < dfe848cadfde4179a0691da34f4bed36ff7185b5 | affected |
| Linux | Linux | 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < dc2bd517ac0bce4ec7498644bd16b6db502df8e2 | affected |
| Linux | Linux | 7ca02d0ae586fe7df59632966a64f3f1a756ef05 < 308ab73e97c87bd0e142b11758faab7f88d82854 | affected |
| Linux | Linux | 4.1 | affected |
| Linux | Linux | 0 < 4.1 | unaffected |
| Linux | Linux | 5.10.270 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.221 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.188 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.157 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.110 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.52 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.6 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
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
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