Improper handling of exceptional conditions in Linux kernel - CVE-2021-46928
Published: May 8, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU89265
CSH Severity: Low
CVSSv4.0: 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-2021-46928
CWE-ID: CWE-755
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of errors within the handle_interruption() function in arch/parisc/kernel/traps.c. A local user can send specially crafted input and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.
External links
- https://git.kernel.org/stable/c/d01e9ce1af6116f812491d3d3873d204f10ae0b8
- https://git.kernel.org/stable/c/e96373f0a5f484bc1e193f9951dcb3adf24bf3f7
- https://git.kernel.org/stable/c/484730e5862f6b872dca13840bed40fd7c60fa26
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.90
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16