NULL pointer dereference in Linux kernel - CVE-2021-47273
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90482
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-2021-47273
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 dwc3_meson_g12a_setup_regmaps() function in drivers/usb/dwc3/dwc3-meson-g12a.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/750a0d75564293be3ed50f13ef7f38ab75106421
- https://git.kernel.org/stable/c/d8dd3754e707104a34f8ec595034d503ea8871a2
- https://git.kernel.org/stable/c/4d2aa178d2ad2fb156711113790dde13e9aa2376
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.44
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13