Linux Kernel up to 6.0.5 vt-d init_dmars uninitialized resource

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5.4	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.0.5. This affects the function init_dmars of the component vt-d. The manipulation leads to an unknown weakness. This vulnerability is referenced as CVE-2022-50482. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.0.5 and classified as critical. This issue affects the function init_dmars of the component vt-d. Using CWE to declare the problem leads to CWE-908. The product uses or accesses a resource that has not been initialized. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clean up si_domain in the init_dmars() error path A splat from kmem_cache_destroy() was seen with a kernel prior to commit ee2653bbe89d ("iommu/vt-d: Remove domain and devinfo mempool") when there was a failure in init_dmars(), because the iommu_domain cache still had objects. While the mempool code is now gone, there still is a leak of the si_domain memory if init_dmars() fails. So clean up si_domain in the init_dmars() error path.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2022-50482 since 10/04/2025. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/01/2026).

The vulnerability scanner Nessus provides a plugin with the ID 284758 (EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-1029)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.14.298, 4.19.264, 5.4.221, 5.10.152, 5.15.76 or 6.0.6 eliminates this vulnerability. Applying the patch 749bea542b67513e99240dc58bbfc099e842d508/5cecfe151874b835331efe086bbdcaeaf64f6b90/724483b585a1b1e063d42ac5aa835707ff2ec165/d74196bb278b8f8af88e16bd595997dfa3d6fdb0/0365d6af75f9f2696e94a0fef24a2c8464c037c8/c4ad3ae4c6be9d8b0701761c839771116bca6ea3/620bf9f981365c18cc2766c53d92bf8131c63f32 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 (284758) and CERT Bund (WID-SEC-2025-2194). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Google Container-Optimized OS
• Debian Linux
• Google Cloud Platform
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• SUSE openSUSE
• Open Source Linux Kernel
• RESF Rocky Linux
• NetApp ActiveIQ Unified Manager
• IBM QRadar SIEM
• Dell NetWorker

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.14.297
• 4.19.263
• 5.4.220
• 5.10.151
• 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
• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4
• 6.0.5

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: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

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

Exploitinginfo

Class: Uninitialized resource
CWE: CWE-908
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: 284758
Nessus Name: EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-1029)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.14.298/4.19.264/5.4.221/5.10.152/5.15.76/6.0.6
Patch: 749bea542b67513e99240dc58bbfc099e842d508/5cecfe151874b835331efe086bbdcaeaf64f6b90/724483b585a1b1e063d42ac5aa835707ff2ec165/d74196bb278b8f8af88e16bd595997dfa3d6fdb0/0365d6af75f9f2696e94a0fef24a2c8464c037c8/c4ad3ae4c6be9d8b0701761c839771116bca6ea3/620bf9f981365c18cc2766c53d92bf8131c63f32

Timelineinfo

10/04/2025 Advisory disclosed
10/04/2025 +0 days CVE reserved
10/04/2025 +0 days VulDB entry created
03/01/2026 +148 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50482 (🔒)
GCVE (CVE): GCVE-0-2022-50482
GCVE (VulDB): GCVE-100-327065
CERT Bund: WID-SEC-2025-2194 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 10/04/2025 17:58
Updated: 03/01/2026 14:59
Changes: 10/04/2025 17:58 (58), 11/23/2025 07:40 (7), 12/26/2025 05:41 (1), 01/16/2026 08:26 (2), 01/24/2026 12:05 (11), 03/01/2026 14:59 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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