CVE-2026-90283

hugetlbfs: release subpool on fill_super failure

State: Published
Severity: Not scored
Published: Sep 17, 2026
Updated: Oct 19, 2026
Reserved: Sep 11, 2026

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before f2d6cea221d777fab3ba18f805ba4c17c90e0b8bAffected 7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before 91c4f3a87862fd86594d5945512decbfa0b1d13dAffected 7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before 04f0354a4abf6793aa5b3f32e2b019ab206f344dAffected 7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before 5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0bAffected 7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before 1d8be4ee81e73fcc52e58f47842d9a2277cfeaaaAffected 7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before dfe848cadfde4179a0691da34f4bed36ff7185b5Affected 7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before dc2bd517ac0bce4ec7498644bd16b6db502df8e2Affected 7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before 308ab73e97c87bd0e142b11758faab7f88d82854Affected
LinuxLinux	4.1Affected before 4.1Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.110 through 6.12.Not affected 6.18.52 through 6.18.Not affected 7.2.6 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before f2d6cea221d777fab3ba18f805ba4c17c90e0b8bAffected
7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before 91c4f3a87862fd86594d5945512decbfa0b1d13dAffected
7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before 04f0354a4abf6793aa5b3f32e2b019ab206f344dAffected
7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before 5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0bAffected
7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before 1d8be4ee81e73fcc52e58f47842d9a2277cfeaaaAffected
7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before dfe848cadfde4179a0691da34f4bed36ff7185b5Affected
7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before dc2bd517ac0bce4ec7498644bd16b6db502df8e2Affected
7ca02d0ae586fe7df59632966a64f3f1a756ef05 to before 308ab73e97c87bd0e142b11758faab7f88d82854Affected

LinuxLinux

4.1Affected
before 4.1Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.110 through 6.12.*Not affected
6.18.52 through 6.18.*Not affected
7.2.6 through 7.2.*Not affected
7.3 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.