Linux Kernel up to 7.2.5 hugetlbfs hugetlbfs_fill_super allocation of resources

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linux Kernel up to 7.2.5. This impacts the function hugetlbfs_fill_super of the component hugetlbfs. Such manipulation leads to allocation of resources. This vulnerability is listed as CVE-2026-90283. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.2.5 and classified as problematic. Affected by this issue is the function hugetlbfs_fill_super of the component hugetlbfs. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. Impacted is availability. CVE summarizes:

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.

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2026-90283 since 09/11/2026. The exploitation is known to be easy. The attack may be launched remotely. Additional levels of successful authentication are necessary for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6 or 7.3-rc1 eliminates this vulnerability. Applying the patch f2d6cea221d777fab3ba18f805ba4c17c90e0b8b/91c4f3a87862fd86594d5945512decbfa0b1d13d/04f0354a4abf6793aa5b3f32e2b019ab206f344d/5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b/1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa/dfe848cadfde4179a0691da34f4bed36ff7185b5/dc2bd517ac0bce4ec7498644bd16b6db502df8e2/308ab73e97c87bd0e142b11758faab7f88d82854 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.270/5.15.221/6.1.188/6.6.157/6.12.110/6.18.52/7.2.6/7.3-rc1
Patch: f2d6cea221d777fab3ba18f805ba4c17c90e0b8b/91c4f3a87862fd86594d5945512decbfa0b1d13d/04f0354a4abf6793aa5b3f32e2b019ab206f344d/5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b/1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa/dfe848cadfde4179a0691da34f4bed36ff7185b5/dc2bd517ac0bce4ec7498644bd16b6db502df8e2/308ab73e97c87bd0e142b11758faab7f88d82854

Timelineinfo

09/11/2026 CVE reserved
09/17/2026 +6 days Advisory disclosed
09/17/2026 +0 days VulDB entry created
09/17/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-90283 (🔒)
GCVE (CVE): GCVE-0-2026-90283
GCVE (VulDB): GCVE-100-406778

Entryinfo

Created: 09/17/2026 21:06
Changes: 09/17/2026 21:06 (59)
Complete: 🔍
Cache ID: 216::103

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