Linux Kernel up to 5.18.3 devm_rproc_alloc double free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 5.18.3. This affects the function devm_rproc_alloc. The manipulation leads to double free. This vulnerability is traded as CVE-2022-49391. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.18.3 and classified as critical. This issue affects the function devm_rproc_alloc. The manipulation with an unknown input leads to a double free vulnerability. Using CWE to declare the problem leads to CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: remoteproc: mtk_scp: Fix a potential double free 'scp->rproc' is allocated using devm_rproc_alloc(), so there is no need to free it explicitly in the remove function.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2022-49391 since 02/26/2025. The attack may be initiated remotely. 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 08/12/2025).

The vulnerability scanner Nessus provides a plugin with the ID 247750 (Linux Distros Unpatched Vulnerability : CVE-2022-49391), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.18.4 eliminates this vulnerability. Applying the patch adc02700236613b344a947a897fc2741d52a43b9/eac3e5b1c12f85732e60f5f8b985444d273866bb 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 (247750). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 247750
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-49391

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.18.4
Patch: adc02700236613b344a947a897fc2741d52a43b9/eac3e5b1c12f85732e60f5f8b985444d273866bb

Timelineinfo

02/26/2025 🔍
02/26/2025 +0 days 🔍
02/26/2025 +0 days 🔍
08/12/2025 +167 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49391 (🔍)
GCVE (CVE): GCVE-0-2022-49391
GCVE (VulDB): GCVE-100-296969

Entryinfo

Created: 02/26/2025 09:08
Updated: 08/12/2025 03:48
Changes: 02/26/2025 09:08 (10), 02/26/2025 09:09 (8), 02/26/2025 09:11 (39), 08/12/2025 03:48 (2)
Complete: 🔍
Committer: sany
Cache ID: 216::103

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

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