Linux Kernel up to 6.0.2 usb xhci_alloc_stream_info memory leak

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.0.2. This affects the function xhci_alloc_stream_info of the component usb. Performing a manipulation results in memory leak. This vulnerability is cataloged as CVE-2022-50544. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.0.2. It has been classified as critical. This affects the function xhci_alloc_stream_info of the component usb. The manipulation with an unknown input leads to a memory leak vulnerability. CWE is classifying the issue as CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info() xhci_alloc_stream_info() allocates stream context array for stream_info ->stream_ctx_array with xhci_alloc_stream_ctx(). When some error occurs, stream_info->stream_ctx_array is not released, which will lead to a memory leak. We can fix it by releasing the stream_info->stream_ctx_array with xhci_free_stream_ctx() on the error path to avoid the potential memory leak.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2022-50544 since 10/07/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 284771 (EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-1050)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.331, 4.14.296, 4.19.262, 5.4.220, 5.10.150, 5.15.75, 5.19.17 or 6.0.3 eliminates this vulnerability. Applying the patch 7fc6bab3413e6a42bb1264ff7c9149808c93a4c7/e702de2f5c893bf2cdb0152191f99a6ad1411823/ddab9fe76296840aad686c66888a9c1dfdbff5ff/9fa81cbd2dd300aa8fe9bac70e068b9a11cbb144/91271a3e772e180bbb8afb114c72fd294a02f93d/fcd594da0b5955119d9707e4e0a8d0fb1c969101/a40ad475236022f3432880e3091c380e46e71a71/782c873f8e7686f5b3c47e8b099f7e08c3dd1fdc/7e271f42a5cc3768cd2622b929ba66859ae21f97 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 (284771) and CERT Bund (WID-SEC-2025-2229). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • IBM QRadar SIEM
  • Dell NetWorker

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

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

AVACAuCIA
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💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔒

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Nessus ID: 284771
Nessus Name: EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-1050)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.9.331/4.14.296/4.19.262/5.4.220/5.10.150/5.15.75/5.19.17/6.0.3
Patch: 7fc6bab3413e6a42bb1264ff7c9149808c93a4c7/e702de2f5c893bf2cdb0152191f99a6ad1411823/ddab9fe76296840aad686c66888a9c1dfdbff5ff/9fa81cbd2dd300aa8fe9bac70e068b9a11cbb144/91271a3e772e180bbb8afb114c72fd294a02f93d/fcd594da0b5955119d9707e4e0a8d0fb1c969101/a40ad475236022f3432880e3091c380e46e71a71/782c873f8e7686f5b3c47e8b099f7e08c3dd1fdc/7e271f42a5cc3768cd2622b929ba66859ae21f97

Timelineinfo

10/07/2025 Advisory disclosed
10/07/2025 +0 days CVE reserved
10/07/2025 +0 days VulDB entry created
04/20/2026 +195 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50544 (🔒)
GCVE (CVE): GCVE-0-2022-50544
GCVE (VulDB): GCVE-100-327489
CERT Bund: WID-SEC-2025-2229 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 10/07/2025 19:26
Updated: 04/20/2026 02:11
Changes: 10/07/2025 19:26 (59), 11/22/2025 21:33 (7), 12/22/2025 06:46 (1), 01/16/2026 02:21 (2), 02/04/2026 23:56 (10), 03/01/2026 03:52 (1), 04/20/2026 02:11 (1)
Complete: 🔍
Cache ID: 216::103

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

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