#VU90646 NULL pointer dereference in Linux kernel - CVE-2021-47005
Published: June 1, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90646
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-2021-47005
CWE-ID: CWE-476
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 NULL pointer dereference within the pci_epf_test_bind() function in drivers/pci/endpoint/functions/pci-epf-test.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/bbed83d7060e07a5d309104d25a00f0a24441428
- https://git.kernel.org/stable/c/679ebad058b8168f10e63876d63b0877fd2fe784
- https://git.kernel.org/stable/c/0169d4f0bee44fdfef908c13ed21fcb326c38695
- https://git.kernel.org/stable/c/6613bc2301ba291a1c5a90e1dc24cf3edf223c03
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.38
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13