Linux Kernel up to 6.0.5 hugetlb_lock privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Linux Kernel up to 6.0.5. The affected element is the function hugetlb_lock. The manipulation results in an unknown weakness. This vulnerability is identified as CVE-2022-50285. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.0.5. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages The h->*_huge_pages counters are protected by the hugetlb_lock, but alloc_huge_page has a corner case where it can decrement the counter outside of the lock. This could lead to a corrupted value of h->resv_huge_pages, which we have observed on our systems. Take the hugetlb_lock before decrementing h->resv_huge_pages to avoid a potential race.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2022-50285 since 09/15/2025. The exploitability is told to be difficult. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 270831 (SUSE SLES12 Security Update : kernel (SUSE-SU-2025:03614-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.332, 4.14.298, 4.19.264, 5.4.223, 5.10.153, 5.15.76 or 6.0.6 eliminates this vulnerability. Applying the patch 3e50a07b6a5fcd39df1534d3fdaca4292a65efe6/629c986e19fe9481227c7cdfd9a105bbc104d245/2b35432d324898ec41beb27031d2a1a864a4d40e/11993652d0b49e27272db0a37aa828d8a3a4b92b/568e3812b1778b4c0c229649b59977d88f400ece/112a005d1ded04a4b41b6d01833cc0bda90625cc/c828fab903725279aa9dc6ae3d44bb7e4778f92c/12df140f0bdfae5dcfc81800970dd7f6f632e00c is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (270831) and CERT Bund (WID-SEC-2025-2053). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Dell Secure Connect Gateway
  • F5 F5OS

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 270831
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2025:03614-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.9.332/4.14.298/4.19.264/5.4.223/5.10.153/5.15.76/6.0.6
Patch: 3e50a07b6a5fcd39df1534d3fdaca4292a65efe6/629c986e19fe9481227c7cdfd9a105bbc104d245/2b35432d324898ec41beb27031d2a1a864a4d40e/11993652d0b49e27272db0a37aa828d8a3a4b92b/568e3812b1778b4c0c229649b59977d88f400ece/112a005d1ded04a4b41b6d01833cc0bda90625cc/c828fab903725279aa9dc6ae3d44bb7e4778f92c/12df140f0bdfae5dcfc81800970dd7f6f632e00c

Timelineinfo

09/15/2025 Advisory disclosed
09/15/2025 +0 days CVE reserved
09/15/2025 +0 days VulDB entry created
01/10/2026 +117 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50285 (🔒)
GCVE (CVE): GCVE-0-2022-50285
GCVE (VulDB): GCVE-100-324066
CERT Bund: WID-SEC-2025-2053 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 09/15/2025 18:15
Updated: 01/10/2026 17:04
Changes: 09/15/2025 18:15 (57), 09/17/2025 03:28 (7), 10/22/2025 05:31 (2), 12/05/2025 07:38 (11), 12/28/2025 12:34 (1), 01/10/2026 17:04 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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