Improper error handling in Linux kernel - CVE-2021-46961
Published: June 20, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU92949
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-2021-46961
CWE-ID: CWE-388
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 error handling within the gic_handle_irq() function in drivers/irqchip/irq-gic-v3.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/e7ea8e46e3b777be26aa855fe07778c415f24926
- https://git.kernel.org/stable/c/7be4db5c2b59fa77071c93ca4329876fb9777202
- https://git.kernel.org/stable/c/ea817ac1014c04f47885532b55f5d0898deadfba
- https://git.kernel.org/stable/c/3f72d3709f53af72835af7dc8b15ba61611a0e36
- https://git.kernel.org/stable/c/a97709f563a078e259bf0861cd259aa60332890a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.36
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.20
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.118