Denial of service in Linux kernel

Published: 2020-05-05 | Updated: 2020-05-21
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-12655
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 exhaustion

EUVDB-ID: #VU28165

Risk: Low


CVE-ID: CVE-2020-12655

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No


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

The vulnerability exists due to application does not properly control consumption of internal resources in "xfs_agf_verify" in "fs/xfs/libxfs/xfs_alloc.c" file. A local user can use an XFS v5 image with crafted metadata, trigger resource exhaustion and perform a denial of service (DoS) attack.


Install updates from vendor's website.

Vulnerable software versions

Linux kernel: 5.6 - 5.6.10

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?