Linux Kernel up to 5.13.3 fsl_ifc memory leak

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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.13.3. It has been classified as critical. The impacted element is an unknown function of the component fsl_ifc. This manipulation causes memory leak. The identification of this vulnerability is CVE-2021-47314. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.13.3 and classified as critical. Affected by this vulnerability is an unknown code block of the component fsl_ifc. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: memory: fsl_ifc: fix leak of private memory on probe failure On probe error the driver should free the memory allocated for private structure. Fix this by using resource-managed allocation.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2021-47314 since 05/21/2024. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 250059 (Linux Distros Unpatched Vulnerability : CVE-2021-47314), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.4.276, 4.9.276, 4.14.240, 4.19.198, 5.4.134, 5.10.52, 5.12.19 or 5.13.4 eliminates this vulnerability. Applying the patch 801847675606/3b45b8a7d549/7626ffbea708/ee1aa737ba0b/443f6ca6fd18/b5789e23773f/48ee69825f74/a6b45b4932f7/8e0d09b1232d 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 (250059). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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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

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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: 250059
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2021-47314

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.4.276/4.9.276/4.14.240/4.19.198/5.4.134/5.10.52/5.12.19/5.13.4
Patch: 801847675606/3b45b8a7d549/7626ffbea708/ee1aa737ba0b/443f6ca6fd18/b5789e23773f/48ee69825f74/a6b45b4932f7/8e0d09b1232d

Timelineinfo

05/21/2024 🔍
05/21/2024 +0 days 🔍
05/21/2024 +0 days 🔍
08/17/2025 +453 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2021-47314 (🔍)
GCVE (CVE): GCVE-0-2021-47314
GCVE (VulDB): GCVE-100-265459

Entryinfo

Created: 05/21/2024 17:58
Updated: 08/17/2025 15:55
Changes: 05/21/2024 17:58 (57), 12/24/2024 17:47 (12), 08/17/2025 15:55 (2)
Complete: 🔍
Cache ID: 216::103

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

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