#VU92071 NULL pointer dereference in Linux kernel - CVE-2021-47181
Published: June 13, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU92071
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-2021-47181
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 tusb_musb_init() function in drivers/usb/musb/tusb6010.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/1ba7605856e05fa991d4654ac69e5ace66c767b9
- https://git.kernel.org/stable/c/b3f43659eb0b9af2e6ef18a8d829374610b19e7a
- https://git.kernel.org/stable/c/28be095eb612a489705d38c210afaf1103c5f4f8
- https://git.kernel.org/stable/c/f87a79c04a33ab4e5be598c7b0867e6ef193d702
- https://git.kernel.org/stable/c/3ee15f1af17407be381bcf06a78fa60b471242dd
- https://git.kernel.org/stable/c/679eee466d0f9ffa60a2b0c6ec19be5128927f04
- https://git.kernel.org/stable/c/06cfb4cb2241e704d72e3045cf4d7dfb567fbce0
- https://git.kernel.org/stable/c/14651496a3de6807a17c310f63c894ea0c5d858e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.256
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.218
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.293
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.291
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.82
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.162