Linux Kernel up to 6.1.1 mmc_add_host return value

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5.3	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.1.1 and classified as critical. Affected by this issue is the function mmc_add_host. This manipulation causes return value. This vulnerability is tracked as CVE-2022-50618. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.1.1 and classified as critical. Affected by this vulnerability is the function mmc_add_host. The manipulation with an unknown input leads to a return value vulnerability. The CWE definition for the vulnerability is CWE-252. The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: mmc: meson-gx: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, it will lead two issues: 1. The memory that allocated in mmc_alloc_host() is leaked. 2. In the remove() path, mmc_remove_host() will be called to delete device, but it's not added yet, it will lead a kernel crash because of null-ptr-deref in device_del(). Fix this by checking the return value and goto error path which will call mmc_free_host().

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2022-50618 since 12/08/2025. 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 02/22/2026).

The vulnerability scanner Nessus provides a plugin with the ID 277781 (Linux Distros Unpatched Vulnerability : CVE-2022-50618), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16 or 6.1.2 eliminates this vulnerability. Applying the patch f5506e0bbb25102bd8ef2e1a3b483a0b934e454e/9e11c6bb745be4e9b325cf96031b4ea34801342d/64b2c441171febf075bd9632aca579afda8ab9fb/e0cfe7aa41f3965f5224affd88afd48c60f6ad1f/42343e3c6195e934b9cb4c08b7ff84a3778d77f9/f5ce76aeddf01ca8f2a80fc37119388d59db7c10/90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e 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 (277781) and CERT Bund (WID-SEC-2025-2756). Be aware that VulDB is the high quality source for vulnerability data.

Affected

• Google Container-Optimized OS
• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• NetApp FAS
• NetApp AFF
• SUSE openSUSE
• RESF Rocky Linux
• Open Source Linux Kernel
• Microsoft Azure Linux

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.19.269
• 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: 5.5
VulDB Meta Temp Score: 5.3

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

CVSSv2info

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

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

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

Exploitinginfo

Class: Return value
CWE: CWE-252 / CWE-253
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
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: 277781
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-50618

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.19.270/5.4.229/5.10.163/5.15.86/6.0.16/6.1.2
Patch: f5506e0bbb25102bd8ef2e1a3b483a0b934e454e/9e11c6bb745be4e9b325cf96031b4ea34801342d/64b2c441171febf075bd9632aca579afda8ab9fb/e0cfe7aa41f3965f5224affd88afd48c60f6ad1f/42343e3c6195e934b9cb4c08b7ff84a3778d77f9/f5ce76aeddf01ca8f2a80fc37119388d59db7c10/90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e

Timelineinfo

12/08/2025 Advisory disclosed
12/08/2025 +0 days CVE reserved
12/08/2025 +0 days VulDB entry created
02/22/2026 +76 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50618 (🔒)
GCVE (CVE): GCVE-0-2022-50618
GCVE (VulDB): GCVE-100-334687
CERT Bund: WID-SEC-2025-2756 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/08/2025 06:06
Updated: 02/22/2026 15:19
Changes: 12/08/2025 06:06 (58), 12/08/2025 18:43 (7), 12/09/2025 06:08 (2), 12/23/2025 14:54 (1), 01/04/2026 09:13 (1), 01/22/2026 02:26 (1), 02/22/2026 15:19 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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