Resource management error in Linux kernel freescale enetc driver



| Updated: 2025-05-13
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-47368
CWE-ID CWE-399
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Resource management error

EUVDB-ID: #VU93188

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-47368

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the enetc_clear_bdrs() and enetc_setup_irqs() functions in drivers/net/ethernet/freescale/enetc/enetc.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.4 - 5.15 rc7

CPE2.3 External links

https://git.kernel.org/stable/c/4c4c3052911b577920353a7646e4883d5da40c28
https://git.kernel.org/stable/c/6c3f1b741c6c2914ea120e3a5790d3e900152f7b
https://git.kernel.org/stable/c/6f329d9da2a5ae032fcde800a99b118124ed5270
https://git.kernel.org/stable/c/7237a494decfa17d0b9d0076e6cee3235719de90
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.70
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.9
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.150


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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