#VU92337 NULL pointer dereference in Linux kernel - CVE-2021-47601
Published: June 20, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU92337
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-2021-47601
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 copy_ta_binary() function in drivers/tee/amdtee/core.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/640e28d618e82be78fb43b4bf5113bc90d6aa442
- https://git.kernel.org/stable/c/832f3655c6138c23576ed268e31cc76e0f05f2b1
- https://git.kernel.org/stable/c/9d7482771fac8d8e38e763263f2ca0ca12dd22c6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.88
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16