Linux Kernel up to 5.19.1 driver snd_card_register use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel up to 5.19.1. Affected by this vulnerability is the function snd_card_register of the component driver. Performing a manipulation results in use after free. This vulnerability was named CVE-2022-50229. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 5.19.1. This affects the function snd_card_register of the component driver. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ALSA: bcd2000: Fix a UAF bug on the error path of probing When the driver fails in snd_card_register() at probe time, it will free the 'bcd2k->midi_out_urb' before killing it, which may cause a UAF bug. The following log can reveal it: [ 50.727020] BUG: KASAN: use-after-free in bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] [ 50.727623] Read of size 8 at addr ffff88810fab0e88 by task swapper/4/0 [ 50.729530] Call Trace: [ 50.732899] bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] Fix this by adding usb_kill_urb() before usb_free_urb().

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2022-50229 since 06/18/2025. The exploitability is told to be easy. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/29/2026).

The vulnerability scanner Nessus provides a plugin with the ID 247125 (Linux Distros Unpatched Vulnerability : CVE-2022-50229), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.326, 4.14.291, 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18 or 5.19.2 eliminates this vulnerability. Applying the patch a718eba7e458e2f40531be3c6b6a0028ca7fcace/4fc41f7ebb7efca282f1740ea934d16f33c1d109/5e7338f4dd92b2f8915a82abfa1dd3ad3464bea0/05e0bb8c3c4dde3e21b9c1cf9395afb04e8b24db/348620464a5c127399ac09b266f494f393661952/64ca7f50ad96c2c65ae390b954925a36eabe04aa/1d6a246cf97c380f2da76591f03019dd9c9599c3/b0d4af0a4763ddc02344789ef2a281c494bc330d/ffb2759df7efbc00187bfd9d1072434a13a54139 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 (247125) and CERT Bund (WID-SEC-2025-1350). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

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

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
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: 247125
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-50229

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.9.326/4.14.291/4.19.256/5.4.211/5.10.137/5.15.61/5.18.18/5.19.2
Patch: a718eba7e458e2f40531be3c6b6a0028ca7fcace/4fc41f7ebb7efca282f1740ea934d16f33c1d109/5e7338f4dd92b2f8915a82abfa1dd3ad3464bea0/05e0bb8c3c4dde3e21b9c1cf9395afb04e8b24db/348620464a5c127399ac09b266f494f393661952/64ca7f50ad96c2c65ae390b954925a36eabe04aa/1d6a246cf97c380f2da76591f03019dd9c9599c3/b0d4af0a4763ddc02344789ef2a281c494bc330d/ffb2759df7efbc00187bfd9d1072434a13a54139

Timelineinfo

06/18/2025 🔍
06/18/2025 +0 days 🔍
06/18/2025 +0 days 🔍
01/29/2026 +225 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50229 (🔍)
GCVE (CVE): GCVE-0-2022-50229
GCVE (VulDB): GCVE-100-313203
CERT Bund: WID-SEC-2025-1350 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 06/18/2025 15:47
Updated: 01/29/2026 07:17
Changes: 06/18/2025 15:47 (59), 08/09/2025 19:44 (2), 10/20/2025 05:06 (7), 11/19/2025 19:40 (12), 01/29/2026 07:17 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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