Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-90283
Published: September 18, 2026
Vulnerability identifier: #VU151194
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90283
CWE-ID: CWE-772
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause huge page reservations to remain charged.
The vulnerability exists due to improper resource cleanup in the hugetlbfs_fill_super() failure path when initiating a hugetlbfs mount with size or min_size options and root dentry creation fails. A local user can trigger the mount failure path to cause huge page reservations to remain charged.
Affected software
Linux kernel
How to mitigate CVE-2026-90283
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/04f0354a4abf6793aa5b3f32e2b019ab206f344d
- https://git.kernel.org/stable/c/1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa
- https://git.kernel.org/stable/c/308ab73e97c87bd0e142b11758faab7f88d82854
- https://git.kernel.org/stable/c/5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b
- https://git.kernel.org/stable/c/91c4f3a87862fd86594d5945512decbfa0b1d13d
- https://git.kernel.org/stable/c/dc2bd517ac0bce4ec7498644bd16b6db502df8e2
- https://git.kernel.org/stable/c/dfe848cadfde4179a0691da34f4bed36ff7185b5
- https://git.kernel.org/stable/c/f2d6cea221d777fab3ba18f805ba4c17c90e0b8b