Linux Kernel up to 6.0.9 snd_BUG_ON allocation of resources

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5.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel up to 6.0.9. Affected by this vulnerability is the function snd_BUG_ON. Executing a manipulation can lead to allocation of resources. This vulnerability is tracked as CVE-2022-49772. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.0.9 and classified as problematic. This vulnerability affects the function snd_BUG_ON. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open() snd_usbmidi_output_open() has a check of the NULL port with snd_BUG_ON(). snd_BUG_ON() was used as this shouldn't have happened, but in reality, the NULL port may be seen when the device gives an invalid endpoint setup at the descriptor, hence the driver skips the allocation. That is, the check itself is valid and snd_BUG_ON() should be dropped from there. Otherwise it's confusing as if it were a real bug, as recently syzbot stumbled on it.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2022-49772 since 04/16/2025. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 240793 (SUSE SLES12 Security Update : kernel (SUSE-SU-2025:01983-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.334, 4.14.300, 4.19.267, 5.4.225, 5.10.156, 5.15.80 or 6.0.10 eliminates this vulnerability. Applying the patch 872c9314769e89d8bda74ff3ac584756a45ee752/368a01e5064c13946d032ab1d65ba95020a39cc5/c43991065f36f7628cd124e037b8750c4617a7a7/e7dc436aea80308a9268e6d2d85f910ff107de9b/a80369c8ca50bc885d14386087a834659ec54a54/00f5f1bbf815a39e9eecb468d12ca55d3360eb10/ad72c3c3f6eb81d2cb189ec71e888316adada5df 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 vulnerability database at Tenable (240793). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.9.333
• 4.14.299
• 4.19.266
• 5.4.224
• 5.10.155
• 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
• 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

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / 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: 240793
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2025:01983-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.9.334/4.14.300/4.19.267/5.4.225/5.10.156/5.15.80/6.0.10
Patch: 872c9314769e89d8bda74ff3ac584756a45ee752/368a01e5064c13946d032ab1d65ba95020a39cc5/c43991065f36f7628cd124e037b8750c4617a7a7/e7dc436aea80308a9268e6d2d85f910ff107de9b/a80369c8ca50bc885d14386087a834659ec54a54/00f5f1bbf815a39e9eecb468d12ca55d3360eb10/ad72c3c3f6eb81d2cb189ec71e888316adada5df

Timelineinfo

04/16/2025 🔍
05/01/2025 +15 days 🔍
05/01/2025 +0 days 🔍
11/07/2025 +190 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49772 (🔍)
GCVE (CVE): GCVE-0-2022-49772
GCVE (VulDB): GCVE-100-306922

Entryinfo

Created: 05/01/2025 17:20
Updated: 11/07/2025 20:29
Changes: 05/01/2025 17:20 (57), 06/28/2025 05:17 (2), 11/07/2025 20:29 (11)
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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