Linux Kernel up to 6.1.1 integrity_init_keyring memory leak

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5.5	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Linux Kernel up to 5.4.228/5.10.162/5.15.85/6.0.15/6.1.1. Impacted is the function integrity_init_keyring. Executing a manipulation can lead to memory leak. This vulnerability appears as CVE-2022-50395. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.4.228/5.10.162/5.15.85/6.0.15/6.1.1 and classified as critical. This vulnerability affects the function integrity_init_keyring. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: integrity: Fix memory leakage in keyring allocation error path Key restriction is allocated in integrity_init_keyring(). However, if keyring allocation failed, it is not freed, causing memory leaks.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2022-50395 since 09/17/2025. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 265548 (Linux Distros Unpatched Vulnerability : CVE-2022-50395), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.229, 5.10.163, 5.15.86, 6.0.16 or 6.1.2 eliminates this vulnerability. Applying the patch 9b7c44885a07c5ee7f9bf3aa3c9c72fb110c8d22/3bd737289c26be3cee4b9afaf61ef784a2af9d6e/29d6c69ba4b96a1de0376e44e5f8b38b13ec8803/57e49ad12f8f5df0c48e1710c54b147a05a10c32/c591c48842f08d30ec6b8416757831985ed9a315/39419ef7af0916cc3620ecf1ed42d29659109bf3 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 (265548) and CERT Bund (WID-SEC-2025-2092). Once again VulDB remains the best source for vulnerability data.

Affected

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

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.4.228
• 5.10.162
• 5.15.0
• 5.15.1
• 5.15.2
• 5.15.3
• 5.15.4
• 5.15.5
• 5.15.6
• 5.15.7
• 5.15.8
• 5.15.9
• 5.15.10
• 5.15.11
• 5.15.12
• 5.15.13
• 5.15.14
• 5.15.15
• 5.15.16
• 5.15.17
• 5.15.18
• 5.15.19
• 5.15.20
• 5.15.21
• 5.15.22
• 5.15.23
• 5.15.24
• 5.15.25
• 5.15.26
• 5.15.27
• 5.15.28
• 5.15.29
• 5.15.30
• 5.15.31
• 5.15.32
• 5.15.33
• 5.15.34
• 5.15.35
• 5.15.36
• 5.15.37
• 5.15.38
• 5.15.39
• 5.15.40
• 5.15.41
• 5.15.42
• 5.15.43
• 5.15.44
• 5.15.45
• 5.15.46
• 5.15.47
• 5.15.48
• 5.15.49
• 5.15.50
• 5.15.51
• 5.15.52
• 5.15.53
• 5.15.54
• 5.15.55
• 5.15.56
• 5.15.57
• 5.15.58
• 5.15.59
• 5.15.60
• 5.15.61
• 5.15.62
• 5.15.63
• 5.15.64
• 5.15.65
• 5.15.66
• 5.15.67
• 5.15.68
• 5.15.69
• 5.15.70
• 5.15.71
• 5.15.72
• 5.15.73
• 5.15.74
• 5.15.75
• 5.15.76
• 5.15.77
• 5.15.78
• 5.15.79
• 5.15.80
• 5.15.81
• 5.15.82
• 5.15.83
• 5.15.84
• 5.15.85
• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4
• 6.0.5
• 6.0.6
• 6.0.7
• 6.0.8
• 6.0.9
• 6.0.10
• 6.0.11
• 6.0.12
• 6.0.13
• 6.0.14
• 6.0.15
• 6.1.0
• 6.1.1

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔒
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CPE 2.2info

• 🔒
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CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 265548
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-50395

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.4.229/5.10.163/5.15.86/6.0.16/6.1.2
Patch: 9b7c44885a07c5ee7f9bf3aa3c9c72fb110c8d22/3bd737289c26be3cee4b9afaf61ef784a2af9d6e/29d6c69ba4b96a1de0376e44e5f8b38b13ec8803/57e49ad12f8f5df0c48e1710c54b147a05a10c32/c591c48842f08d30ec6b8416757831985ed9a315/39419ef7af0916cc3620ecf1ed42d29659109bf3

Timelineinfo

09/17/2025 CVE reserved
09/18/2025 +1 days Advisory disclosed
09/18/2025 +0 days VulDB entry created
12/11/2025 +84 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50395 (🔒)
GCVE (CVE): GCVE-0-2022-50395
GCVE (VulDB): GCVE-100-324868
CERT Bund: WID-SEC-2025-2092 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 09/18/2025 16:35
Updated: 12/11/2025 21:47
Changes: 09/18/2025 16:35 (58), 09/19/2025 20:04 (7), 09/21/2025 23:19 (2), 11/29/2025 13:52 (1), 12/11/2025 21:47 (10)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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