Denial of service in Linux Kernel

Published: 2020-02-04
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-8428
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU24834

Risk: Low


CVE-ID: CVE-2020-8428

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes


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

The vulnerability exists due to a use-after-free error within the "may_create_in_sticky" in "fs/namei.c". A local user can cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory.


Install updates from vendor's website.

Vulnerable software versions

Linux kernel: 5.0 - 5.4.17

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?