#VU90976 Use of uninitialized resource in Linux kernel - CVE-2021-47424
Published: June 4, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU90976
Vulnerability risk: 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-2021-47424
CWE-ID: CWE-908
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 use of uninitialized resource within the i40e_clear_interrupt_scheme() function in drivers/net/ethernet/intel/i40e/i40e_main.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/60ad4cde0ad28921f9ea25b0201c774b95ffa4b4
- https://git.kernel.org/stable/c/17063cac4088b8e2fc0f633abddca5426ed58312
- https://git.kernel.org/stable/c/97aeed72af4f83ae51534f0a2473ff52f8d66236
- https://git.kernel.org/stable/c/75099439209d3cda439a1d9b00d19a50f0066fef
- https://git.kernel.org/stable/c/2e5a20573a926302b233b0c2e1077f5debc7ab2e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.211
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.73
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.153